Consulta: subjectFacets:"Irrigated rice"
Registros recuperados: 47
Data/hora: 10/06/2024 06:38:10

IDENTIFICATION OF SUITABLE AREAS FOR IRRIGATED RICE CROPPING USING MODIS IMAGES AND HAND MODEL
Provedor de dados: 70
Autores: MENGUE,VAGNER P.; FONTANA,DENISE C.
ABSTRACT One of the most relevant activities of Brazilian economy is agriculture. Among the main crops in Brazil, rice is one of high relevance. The state of Rio Grande do Sul, in Southern Brazil, is responsible for 68.7% of domestic production (IBGE, 2013). The goal of this study was to develop a low-cost methodology with a regional scope to identify suitable areas for irrigated rice cropping in this state, using spectro-temporal behavior of vegetation index by means of MODIS images and HAND model. The rice-cropped area of this study was the southern half of the State. Using the HAND model, flood areas were mapped to identify irrigated rice cultivation. We used multi-temporal images of vegetation index from MODIS sensor, covering the period from August...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: HAND Model; EVI; MODIS; Irrigated rice; Mapping.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000200329

Recomendações básicas para o cultivo do arroz irrigado em Roraima
Provedor de dados: 14
Autores: CORDEIRO, A. C. C.
Tipo: Folhetos
Palavras-chave: Recomendacoes; Brasil; Roraima; Irrigated rice; Cultivation; Arroz Irrigado.
Ano: 1989
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687498

Brusone em arroz irrigado em Roraima: ocorrência e sugestões para controle.
Provedor de dados: 14
Autores: CORDEIRO, A. C. C.; GIANLUPPI, D.
Tipo: Folhetos
Palavras-chave: Ocorrencia; Brasil; Roraima; Irrigated rice; Disease; Arroz Irrigado; Brusone; Doença.
Ano: 1994
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687497

Avaliacao de variedades de arroz irrigado em varzeas, na regiao dos cerrados.
Provedor de dados: 14
Autores: RASSINI, J. B.
bitstream/item/102117/1/pesq-14.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Cultivar; Avaliacao; IAC-899; BR IRGA-409; CICA-8; Irrigated rice; Evaluation; Flood plains.; Arroz; Cerrado; Irrigação; Oryza Sativa; Várzea.; Varieties.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549357

Sistematização de uma área de várzea para cultivo do arroz com irrigação controlada.
Provedor de dados: 14
Autores: MASCARENHAS, R. E. B.; SANTOS FILHO, B. G. dos; LOPES, A. de M.
bitstream/item/154140/1/ComTec-47-.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Cultivo; Irrigated rice; Flood plain; Cultivation.; Arroz Irrigado; Irrigação; Várzea.; Irrigation.
Ano: 1974
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376056

Comportamento de cultivares de arroz irrigado sob regime de sequeiro favorecido, em Rio Branco-Acre.
Provedor de dados: 14
Autores: CAMPOS, I. S.; MEDEIROS, J. A.
As cultivares atualmente plantadas na região apresentam porte alto, principalmente quando cultivadas em áreas de matas recém desbravadas e espaçamento reduzido, o que favorece o acamamento. um dos principais problemas da orizicultura acreana. Os trabalhos de introdução de material genético para as condições do Estado do Acre, não tem apresentado resultados satisfatórios, possivelmente, pelo fato desse material ter sido desenvolvido em região de clima, solo e cultivo, diferentes das condições desse Estado. Partindo de 30 cultivares provenientes do Centro de Pesquisa Agropecuária do Trópico Úmido (CPATU), foi conduzido um ensaio no campo experimental da EMBRAPA/UEPAE-Rio Branco, no ano agrícola 19801/81, em área de terra firme, de Latossolo Amarelo, textura...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Irrigated rice; Rio Branco (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Aclimatación; Factores ambientales.; Ensayos de variedades; Agricultura de regadío; Agricultura de secano; Arroz irrigado; Cultivo de sequeiro; Comportamento de variedade; Aclimatação; Condição ambiental; Rice; Irrigated farming; Dryland farming; Variety trials; Acclimation; Environmental factors.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492317

Sistemas de controle de plantas daninhas na cultura do arroz irrigado em Roraima.
Provedor de dados: 14
Autores: MEDEIROS, R. D. de.
bitstream/item/175377/1/cot00397-arroz-roberto.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Cultura; Controle; Brasil; Roraima; Irrigated rice; Production; Weed; Control.; Arroz Irrigado; Erva Daninha; Produção Vegetal.; Brazil.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/688073

Informações técnicas para o cultivo do arroz irrigado em Mato Grosso do Sul.
Provedor de dados: 14
Autores: HECKLER, J. C.
bitstream/item/44293/1/CT-12-83.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Cultivo; Brasil; Mato Grosso do Sul; Irrigated rice; Cultivation.; Arroz Irrigado; Cerrado; Oryza Sativa.; Brazil.
Ano: 1986
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/233429

Arroz vermelho: alerta aos produtores de arroz irrigado de Roraima.
Provedor de dados: 14
Autores: GIANLUPPI, V.; EL-HUSNY, J.C.; CORDEIRO, A. C. C.
Tipo: Folhetos
Palavras-chave: Roraima; Irrigated rice; Arroz Irrigado; Arroz Vermelho; Red rice.
Ano: 1989
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687539

Características agronômicas e desempenho produtivo de cultivares de arroz irrigado em Roraima.
Provedor de dados: 14
Autores: CORDEIRO, A. C. C.; PEREIRA, R. L.
Tipo: Folhetos
Palavras-chave: Desempenho produtivo; Roraima; Irrigated rice; Production; Arroz Irrigado; Características Agronômicas.
Ano: 1994
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687496

JAVAE: nova variedade de arroz irrigado recomendada para Roraima.
Provedor de dados: 14
Autores: CORDEIRO, A. C. C.; PEREIRA, R. L.
Tipo: Folhetos
Palavras-chave: Javae; Roraima; Irrigated rice; Variety; Arroz Irrigado; Variedade.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687538

Considerações técnicas sobre os principais problemas na lavoura de arroz irrigado em Roraima.
Provedor de dados: 14
Autores: CORDEIRO, A. C. C.
Tipo: Folhetos
Palavras-chave: Roraima; Irrigated rice; Production; Arroz Irrigado; Produção.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687571

Ensaio de observação de linhagens de arroz irrigado em várzea de Roraima.
Provedor de dados: 14
Autores: CORDEIRO, A. C. C.
Tipo: Folhetos
Palavras-chave: Arror irrigado; Brasil; Roraima; Irrigated rice; Várzea; Brazil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/688324

Notas prévias sobre as possibilidades do cultivo do arroz irrigado nas várzeas altas do estuário Amazônico.
Provedor de dados: 14
Autores: PONTE, N. T. da.
bitstream/item/154149/1/Bol-inf127.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Cultivo; Brasil; Irrigated rice; Cultivation; Flooded land.; Arroz Irrigado; Várzea.; Amazonia.
Ano: 1967
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/382522

Ensaio comparativo avançado de arroz irrigado (várzea) em Belém, Pará - ano agrícola 1998/1999.
Provedor de dados: 14
Autores: LOPES, A. de M.; MASCARENHAS, R. E. B.
bitstream/item/52944/1/PesquisaAnd0180001.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: BR IRGA 409; CICA 8; METICA 1; Belem; Pará; Brasil; Irrigated rice; Flooded land.; Arroz Irrigado; Linhagem; Melhoramento Genético Vegetal; Variedade; Várzea.; Amazonia; Plant breeding; Progeny; Varieties.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374286

Cultivares de arroz irrigado capazes de produzir três safras por ano.
Provedor de dados: 14
Autores: KASS, D. L.; FURLAN JUNIOR, J.; LOPES, A. de M.
bitstream/item/70854/1/IPEAN-Comunicado33.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Cultivar; Irrigated rice; Variety; Yield.; Arroz Irrigado; Produtividade.
Ano: 1973
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376831

ANTAGONISM IS THE PREDOMINANT EFFECT OF HERBICIDE MIXTURES USED FOR IMIDAZOLINONE-RESISTANT BARNYARDGRASS (Echinochloa crus-galli) CONTROL
Provedor de dados: 87
Autores: MATZENBACHER,F. O.; KALSING,A.; DALAZEN,G.; MARKUS,C.; MEROTTO JR,A.
ABSTRACTHerbicides mixtures are used in many situations without the adequate knowledge related with the effect on major target weeds. The objective of this study was to evaluate the effects of different herbicides mixtures used in irrigated rice in order to establish the adequate combinations for the prevention and management of herbicide resistance in barnyardgrass (Echinochloa crus-galli). Three experiments were performed at field conditions with all major post-emergent herbicides used in irrigated rice in Brazil. The first experiment was performed with barnyardgrass resistant to imidazolinone herbicides and herbicides applied at label rates. The second and third experiments were performed with barnyardgrass resistant and susceptible to imidazolinone...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ALS inhibitors; Irrigated rice; Interaction; Synergism.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582015000300587

Resistance Mapping of the Genus Cyperus in Rio Grande do Sul and Selection Pressure Analysis
Provedor de dados: 87
Autores: ULGUIM,A.R.; SILVA,B.M.; AGOSTINETTO,D.; AVILA NETO,R.C.; ZANDONÁ,R.R.
ABSTRACT: Among the species of the genus Cyperus occurring in paddy rice, C. esculentus, C. difformis and C. iria are the most important, and the latter two are reported as resistant to herbicides in Rio Grande do Sul (RS). The aim of this work was to characterize and mapping the occurrence of resistant plants of the genus Cyperus in areas of paddy rice in RS State, and to analyze the agronomic factors that interfere in the resistance selection. Seeds from individual plants were harvested in the 2014/15 crop, characterized as control failures by the application of acetolactate synthase inhibitors (ALS), totaling 43 samples. At the time of collection, the grower was inquired on aspects related to the management of weeds in the crop. Seeds were germinated in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acetolactate synthase; Cyperus esculentus; C. iria; C. difformis; Irrigated rice.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100254

Methane emission induced by short-chain organic acids in lowland soil
Provedor de dados: 90
Autores: Moscôso,Janielly Silva Costa; Silva,Leandro Souza da; Pujol,Stefen Barbosa; Giacomini,Sandro José; Severo,Fabiane Figueiredo; Marzari,Laura Brondani; Molin,Gustavo Dal.
ABSTRACT Methane (CH4) is the second major greenhouse gas after CO2, exerting a significant influence on the climate and the chemistry of the atmosphere. In lowland soil, acetate and H2/CO2 are the most important precursors of CH4 and formed from organic matter fermentation in an anaerobic environment, giving rise to short-chain organic acids (ethanoic, propanoic, and butanoic), depending on the type of crop residue and the soil management system. Ethanoic acid can be directly converted to CH4 by methanogenic microorganisms, but propanoic and butanoic acids must be converted to acetate before being converted to CH4. This study aimed to quantify, in isolation, the dynamics and CH4 emission potential of the three short-chain organic acids found in flooded...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ethanoic acid; Butanoic acid; Propanoic acid; Methanogenesis; Irrigated rice.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100412

การระบาดของโรคข้าวกับการเปลี่ยนแปลงของสภาพภูมิอากาศ ในนาชลประทานที่ปลูกต่อเนื่องของศูนย์วิจัยข้าวปทุมธานี
Provedor de dados: 106
Autores: Chalermkwan Chimwai; Nittaya Ruensuk; Acharaporn Na Lampang Noernplab; Yuthapong Petcharaporn.
Climate change may affect rice-growing environments and disease epidemics. Therefore, the experiment was conducted at Pathumthani Rice Research Center during 2011–2013 to study the effect of climate change on rice diseases occurrence.Two rice varieties, RD31 and PSL 2 were planted every month throughout the year.  Disease incidence was randomly surveyed on the rice plot at least once a month, and the metrological data including temperature, relative humidity and rainfall were collected.  Base on 3 years of metrological data, the average annual temperature and relative humidity were increased while the total rainfall was decreased.  Rainy day was approximately 6 month from May to October. The disease found every year in both varieties was bacterial leaf...
Tipo: PhysicalObject
Palavras-chave: Epidemics; Rice disease; Irrigated rice; Climate change; ข้าว; โรคข้าว; ข้าวนาชลประทาน; การเปลี่ยนแปลงสภาพภูมิอากาศ; การระบาดของโรค.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5651

ข้าวอายุสั้นสายพันธุ์ดี : CNT96024-61-1-PSL-1-2-20-2
Provedor de dados: 106
Autores: Benjawan Phonkhod; Acharaporn Na Lampang Noenplab; Phamorn Pattawatang; Saang Chirinte; Sumalee Sangprem; Wilai Palawisut; Pornsuree Kanjana; Wanakorn Intrarastit; Cawaporn Phumchoe; Duangorn Ariyapruek; Sard Toktiwa; Chuanchom Deerusamee; Mungmat Wangka; Doungporn Vitoonjit; Chairat Chanoo; Doungkamon Boonchuay; Jaturong Pipatpiriyanon; Preamkamon Moonnilta; Wiphavadee Chamnan; Naiyakorn Sanguankaew; Supatthra Narawatthana; Wantana Sriratanasak; Wichuda Rattanakarn; Rasamee Dhitikiattipong; Suradet Palawisut.
CNT96024-61-1-PSL-1-2-20-2 is a short-growth duration rice variety which is suitable for growing in the rain-fed area. This rice variety derived from CNT96024-61-1-PSL-1-2, a product ofthe crossing of three cultivars; i.e. Suphanburi 1, IR64 and CNT86074-25-9-1(Suphanburi1/IR64//CNT86074-25-9-1), that still expressed its genetic diversity while it was growing in a breeder seeds production field. This leaded to the selection of the elite lines, CNT96024-61-1-PSL-1-2-20-2 which had an early maturation and short growth duration so that it could be harvested shortly at about 92 days after sowing. It had a fairly high yield potential of1,004 kg/rai with the average yields of 681 kg/rai, which is comparable with theRD41 (742 kg/rai), but higher thanRD43 (666...
Tipo: Collection
Palavras-chave: Rainfed area; Short growth duration; Brown planthopper; Irrigated rice; พื้นที่น้ำท่วมฤดูฝน; ข้าวอายุสั้น; เพลี้ยกระโดดสีน้ำตาล; ขัาวนาชลประทาน.
Ano: 2015
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5891

ปฏิกิริยาของพันธุ์ข้าวนาน้ำฝนภาคกลางต่อโรคใบสีส้ม
Provedor de dados: 106
Autores: Kasem Soontrajan; Wasana Panpeng; Satit Tayapat.
Tipo: Collection
Palavras-chave: Irrigated rice; Central region; Yellow orange leaf disease; YOLD; ข้าวนาน้ำฝน; ภาคกลาง; โรคใบสีส้ม; ปฏิกิริยาของพันธุ์; พันธุ์ต้านทาน.
Ano: 2006
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5047

ปฏิกิริยาของพันธุ์ข้าวนาน้ำฝนภาคกลางต่อโรคใบหงิก
Provedor de dados: 106
Autores: Kasem Soontrajan; Wasana Panpeng; Satit Tayapat.
Tipo: Collection
Palavras-chave: Irrigated rice; Ragged stunt disease; Central region; Disease reaction; ข้าวนาน้ำฝน; โรคใบหงิก; การถ่ายทอดโรค; ปฏิกิริยาของพันธุ์ข้าว; เพลี้ยกระโดสีน้ำตาล; แมลงพาหะ; ความต้านทานต่อโรค; ภาคกลาง.
Ano: 2006
URL: http://anchan.lib.ku.ac.th/agnet/handle/123456789/3124

การตอบสนองต่อปุ๋ยไนโตรเจนของข้าวนาชลประทานสายพันธุ์ดีในเขตภาคตะวันตก
Provedor de dados: 106
Autores: Surin Tritilanant; Chayanunt Cham-Oun; Suthep Rhitsavang.
Response of nitrogen rates was investigated in Ratchaburi Rice Research Center during dry and wet season 2013 with 10 irrigated promissing rice lines/variety with different nitrogen rates of check 0 6 12 18 24 and 30 kg(N)/rai. The result showed rice yield in dry season 2013 at 6 18 24 and 30 kg(N)rai equal to 505.0 533.6 528.9 and 579.7 kg/rai with nonsignificant but in wet season 2013 there was different yield at 0 6 12 and 18 N-rates with 24 N-rate that gave highly yield of 622.4 kg/rai. In dry season 2013 PTT 00018-10-1-2-1 gave highly yield of 553 kg/rai but non different from RD31 check variety that gave yield of 519.29 kg/rai. The height of rice in dry season 2013 in every rates of N-fertilizer had non significant but PTT00018-10-1-2-1 had lowest...
Tipo: Collection
Palavras-chave: Irrigated rice; Nitrogen fertilizer; Response; Yield; Western region; ข้าวนาชลประทาน; ปุ๋ยไนโตรเจน; การตอบสนอง; ผลผลิต; ภาคตะวันตก.
Ano: 2015
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5924

PSL05101-93-1-3-2 : ข้าวนาชลประทานสายพันธุ์ดีเด่น
Provedor de dados: 106
Autores: Benjawan Phonkhod; Acharaporn Na Lampang Noenplab; Phamorn Pattawatang; Saang Chirinte; Sumalee Sangprem; Wilai Palawisut; Pornsuree kanjana; Jittichai Anawong; Wanakorn Intrarastit; Cawaporn Phumchoe; Duangorn Ariyapruek; Preamkamon Moonnilta; Sard Toktiwa; Chuanchom Deerusamee; Mungmat Wangka; Doungporn Vitoonjit; Chairat Chanoo; Doungkamon Boonbchuay; Jaturong Pipatpiriyanon; Wiphavadee Chamnan; Nayakorn Sanguakaen; Wantana Sriratanasak; Witchuda Rattanakarn; Rasamee Dhitikiattipong; Suradet Palawisut.
Irrigated paddy fields are the rice growing areas having high yield potential. Two significant factors enhancing high yield are the well-adapted variety and appropriate management. PSL05101-93-1-32 is a promising rice line derived from the 3-way cross of PSL00508-3-1-1-4/IR66738-118-1-2//IR67966-188-2-2-1 in 2005. It has as high yield potential as 965 kg/rai (6.03 t/ha). The average grain yield is 730 kg/rai, greater than PSL2, CNT1 and RD47 varieties by 14, 13 and 7%, respectively. The maturity is 115 days after sowing by transplanting method. Plant height is 83-90 cm. This promising line is a non-glutinous long grain rice having straw-color husk.  The paddy rice seed dimension is 10.4×2.61×2.10 mm in width × length × thickness, respectively. The paddy...
Tipo: Collection
Palavras-chave: Irrigated rice; High yield; Brown planthopper; Cold tolerance; Long grain class 1; นาชลประทาน; ผลผลิตสูง; เพลี้ยกระโดดสีน้ำตาล; ทนหนาว; ข้าวสารเมล็ดยาวชั้น 1.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5895

PRE09035-CRI-12-3-1-1 : ข้าวเจ้านาชลประทานสายพันธุ์ดีในจังหวัดแม่ฮ่องสอน
Provedor de dados: 106
Autores: Nongnuch Pradit; Sivapong Naruebal; Premrudee Pintaya; Sakul Mulkum; Pairoj Chotinisakom; Pitchatorn Rueangdej; Kakanang Punyalue; Adul Sitthiwong; Pannipa Yajai; Kanjana Piboon; Kulchana Ketsuwan; Pitchanan Kunghair; Yawvaluck Kanyamee; Payapbhubes Markkool; Nootjarin Jungkhun; Komsiri Srinil; Silawan Chantharabutt; Phannee Jitta.
Blast, white backed planthopper and gall midge is  a major  problem in  Mae Hong Son Province, a non glutinous rice line PRE09035-CRI-12-3-1-1 was derived from a single cross  between  PRE04009-10-1-1-2 and  Khao dawk mali 105  since  2009.  Inter station yield trials had tested in  2013-2014. In the wet season the average yield was  579  Kg/rai while the average yield 665 Kg/rai in RD21 and 654 Kg/rai in Phitsanulok 2. In the dry season the average yield was 722  kg/rai while th  average yield of  RD21 and Phitsanulok 2 were 780 and 752  kg/rai, respectively. The farmer field trials has tested in 2014, in the wet season the average yield was 551  Kg/rai. RD21 and Phitsanulok 2 produce 768 and 704 kg/rai, respectively.  The  line  performed  blast...
Tipo: Collection
Palavras-chave: Non glutinous rice; Non-photoperiodsensitive; Irrigated rice; Blast  resistance; White backed planthopper; Mae Hong Son Province; Highland rice; Terraced rice; ข้าวเจ้า; ไม่ไวต่อช่วงแสง; นาชลประทาน; ต้านทานโรคไหม้; เพลี้ยกระโดดหลังขาว; จังหวัดแม่ฮ่องสอน; ข้าวนาสวนที่สูง; นาขั้นบันได.
Ano: 2015
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5903

ปฏิกิริยาของพันธุ์ข้าวนาชลประทานภาคกลางต่อโรคใบหงิก
Provedor de dados: 106
Autores: Kasem Soontrajan; Wasana Panpeng; Satit Tayapat.
Tipo: Collection
Palavras-chave: Irrigated rice; Central region; Ragged stunt disease; Disease reaction; ข้าวนาชลประทาน; ภาคกลาง; โรคใบหงิก; ปฏิกิริยาของพันธุ์ข้าว; พันธุ์; ความต้านทานต่อโรค.
Ano: 2006
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5044

ผลของการเปลี่ยนแปลงสภาพภูมิอากาศต่อชนิดของเชื้อสาเหตุและการระบาดของโรคข้าวในนาชลประทานที่ปลูกต่อเนื่องในจังหวัดแพร่และอุตรดิตถ์
Provedor de dados: 106
Autores: Pannipa Yajai; Piyawan Yaidee; Kulchana ketsuwan.
Study on the effect of climate change on outbreak of rice disease in the experiment Phrae Rice Research Center and farmers’ fields at Phrae and Uttaradit Provinces. In Phrae Rice Research Center to study during January, 2011 - December, 2013 and experiment using split-plot in RCB desing 3 replications. Main plots were planting dates wich desingned to plant at 6 date of the every monthly. Sub plots contained two rice varieties being San Pah Tawng 1 and RD14 to planted every month by transplanting total of 36 months and survey disease epidemics In farmers’ fields. Record meteorological data including temperature, relative humidity and total rainfall, it compare with the long-temp average of meteorological data (2003-2012). The result found that, the average...
Tipo: PhysicalObject
Palavras-chave: Climatic change; Rice disease; Disease epidemics; Continuous cropping; Rice production; Irrigated rice; Global warming; Rice pathogen; Rice; RD 14 variety; Sanpatong 1 variety; Phrae province; Uttaradit province; ข้าว; พันธุ์สันป่าตอง 1; พันธุ์กข 14; การผลิตข้าว; การปลูกข้าวต่อเนื่อง; นาชลประทาน; จังหวัดแพร่; จังหวัดอุตรดิตถ์; การระบาดของโรค; โรคข้าว; การสำรวจโรคพืช; เชื้อสาเหตุของโรค; ภาวะโลกร้อน; การเปลี่ยนแปลงสภาพภูมิอากาศ; การประเมินความเสียหาย; จ.แพร่; จ.อุตรดิตถ์.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5697

ปฏิกิริยาของพันธุ์ข้าวนาชลประทานภาคกลางต่อโรคขอบใบแห้ง
Provedor de dados: 106
Autores: Kasem Soontrajan; Somsak Thongdeethae; Wasana Panpeng; Satit Tayapat.
Tipo: Collection
Palavras-chave: Irrigated rice; Central region; Bacterial leaf blight; BLB; Disease reaction; ข้าวนาชลประทาน; ปฏิกิริยาของพันธุ์ข้าว; โรคขอบใบแห้ง; การทดสอบพันธุ์; พันธุ์ต้านทานโรค; ภาคกลาง.
Ano: 2006
URL: http://anchan.lib.ku.ac.th/agnet/handle/123456789/3118

การทดสอบปฏิกิริยาของพันธุ์ข้าวนาชลประทานภาคกลางต่อแมลง: เพลี้ยกระโดดหลังขาว
Provedor de dados: 106
Autores: Wasana Panpeng; Satit Tayapat; Kasem Soontrajan; Rachot Panpitpate; Parinya Chinnoros; Somsak Thongdeethae.
Tipo: Collection
Palavras-chave: Pest reaction; Irrigated rice; Central region; Whitebacked planthopper; ข้าว; ข้าวนาชลประทาน; ภาคกลาง; เพลี้ยกระโดดหลังขาว; ปฏิกิริยาของพันธุ์ข้าว; ความต้านทานต่อแมลง.
Ano: 2006
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5071

PRE04012-20-1-1-1 : ข้าวเหนียวต้านทานแมลงบั่วสายพันธุ์ดีเด่น
Provedor de dados: 106
Autores: Premrudee Pintaya; Kakanang Punyalue; Adul Sitthiwong; Pannipa Yajai; Kanjana Piboon; Kulchana Ketsuwan; Pitchanan kunghair; Yawvaluck Kanyamee; Sakul Mulkum; Pairoj Chotinisakorn; Pichatorn Rueangdej; Payapbhubes Markkool; Nootjarin Jungkhun; Kornsiri Srinil; Sivapong Naruebal; Nongnuch Pradit; Silawan Chantharabutt; Phannee Jitta.
Rice Gall midge (Orseolia oryzae (Wood-Mason)) is a major problem in the upper Northern part, a glutinous rice line PRE04012-20-1-1-1 was derived from a single cross between Sahm Samai and PRE96011-SPT-1-2-2-1-1 since 2004. The farmer field trials had tested in 2011-2013. In wet season, high potential yield was 1,043 kg/rai while the average yield was 703 kg/rai which was non significant different from 710 kg/rai of RD14 and 704 kg/rai of SPT1. In dry season, the high potential yield was 916 kg/rai while the average yield of PRE04012-20-1-1-1 and SPT1 were 714 kg/rai, but lower than RD14 (759 kg/rai) by 6 percent. In addition, this line can produce maximum yield of 780 kg/rai at 20.4 kg N/rai. This line performed better gall midge resistance (R-MS in green...
Tipo: Collection
Palavras-chave: Glutinous rice; Non-photoperiod sensitivity; Rice gall midge resistance; The upper north Thailand; Irrigated rice; ข้าวเหนียว; ข้าวไม่ไวต่อช่วงแสง; ต้านทานแมลงบั่ว; ภาคเหนือตอนบน; นาชลประทาน.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5900

ความสัมพันธ์ระหว่างระยะการเจริญเติบโตของข้าวกับการเปลี่ยนแปลงประชากร หอยเชอรี่ในนาข้าวจังหวัดเชียงราย
Provedor de dados: 106
Autores: Urassaya Boonpramuk; Kornsiri Srinil; Yuttana Wongsrida; Wantana Sriratanasak.
Population dynamic of golden apple snails related in rice planting phase at Chiang Rai provinces was conducted at irrigated rice field and rainfed rice field in Pan District from January 2012 – November 2014. The objective of this research is to determine the dynamics of golden apple snail population, which snails (applied removal sampling method) were randomly sampled consecutively by Quadrat sampling (1x1 m) at two-week interval. The results showed that the highest snails - density at irrigated rice field was in after harvesting phase but at rainfed rice field the highest density was in booting stage. Snail density showed slightly correlated with water level in rainfed rice field (rs = 0.517, P = 0.011, n = 23) but there was no correlation observed at...
Tipo: Collection
Palavras-chave: Golden apple snail; Population dynamics; Irrigated rice; Rainfed rice; Chiang Rai province; หอยเชอรี่; การเปลี่ยนแปลงประชากร; ข้าวนาชลประทาน; ข้าวนาน้ำฝน; จังหวัดเชียงราย.
Ano: 2015
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5890

ข้าวนาชลประทานข้าวสายพันธุ์ดีเด่น PSL05101-93-1-3-2
Provedor de dados: 106
Autores: Benjawan Phonkhod; Acharaporn Na Lampang Noenplab; Phamorn Pattawatang; Sa-ang Chirinte; Sumalee Sangprem; Wilai Palawisut; Pornsuree Kanjana; Wanakorn Intrarastit; Cawaporn Phumchoey; Duang-orn Ariyapruek; Sard Toktiwa; Chuanchom Deerusamee; Mungmat Wangka; Duangporn Withoonjit; Chairat Channoo; Duangkamon Boonchuay; Jaturong Pipatpiriyanon; Preamkamon Moonnilta; Wiphavadee Chamnan; Nayakorn Sa-nguakaew; Wantana Sriratnasak; Wichuda Rattanakarn; Rasamee Dhitikiattipong; Suradet Palawisut.
Irrigated paddy fields are the rice growing areas having high yield potential.Two significant factors enhancing high yield are the well-adapted variety and good in rice production management. PSL05101-93-1-32 is a promising rice line derived from the 3-way cross of PSL00508-3-1-1-4/IR66738-118-1-2//IR67966-188-2-2-1 in 2005. It had as high yield as 965 kg/rai (6.03t/ha).The average grain yield was 730 kg/rai which was greater than PSL2, CNT1 and RD47 by 14, 13 and 7%, respectively. The maturity was 115 days after sowing by transplanting method. Plant height was 83-90 cm. This promising line is a non-glutinous long grain rice having straw-color husk. The paddy rice seed dimensions was 10.4×2.61×2.10 mm. by width x length x thickness, respectively.The paddy...
Tipo: PhysicalObject
Palavras-chave: Irrigated rice; High yield; Brown planthopper; Cold tolerance; Long grain; Plant breeding; Hybrid varieties; Rice; Rice characters; Cold resistance; Pests resistance; นาชลประทาน; ผลผลิตสูง; เพลี้ยกระโดดสีน้ำตาล; ความทนทานต่อความเย็น; ข้าวสารเมล็ดยาวชั้น 1; ข้าว; สายพันธุ์ลูกผสม; การปรับปรุงพันธุ์; การคัดเลือกพันธุ์; ลักษณะประจำพันธุ์; ลักษณะเมล็ดพันธุ์; คุณลักษณะทางประสาทสัมผัส; คุณภาพผลผลิต; ความต้านทานแมลงศัตรูพืช.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5687

ปฏิกิริยาของพันธุ์ข้าวนาชลประทานภาคกลางต่อโรคใบสีส้ม
Provedor de dados: 106
Autores: Kasem Soontrajan; Wasana Panpeng; Satit Tayapat.
Tipo: Collection
Palavras-chave: Irrigated rice; Central region; Yellow orange leaf disease; Yield; Disease reaction; ข้าวนาชลประทาน; โรคใบสีส้ม; เพลี้ยจั๊กจั่นสีเขียว; แมลงพาหะ; การถ่ายทอดโรค; ปฏิกิริยาของพันธุ์ข้าว; ความต้านทานต่อโรค; ระดับความรุนแรงของโรค.
Ano: 2006
URL: http://anchan.lib.ku.ac.th/agnet/handle/123456789/3128

ผลของการเปลี่ยนแปลงสภาพภูมิอากาศที่มีต่อชนิดของเชื้อสาเหตุ และการระบาดของโรคข้าวในนาชลประทานที่ปลูกต่อเนื่อง
Provedor de dados: 106
Autores: Acharaporn Na Lampang Noenplab; Rasamee Dhitikiattipong; Witchuda Rattanakarn; Wanporn Khemmook; Sith Jaisong; Pannipa Yajai; Piyawan Yaidee; Nootjarin jungkhun; Kornsiri Srinin; Taraporn Yuenyong; Duangkamon Boonchuay; Anakkapon Boonchuay; Duangporn Witoonjit; Nittaya Ruensuk; Chalermkwan Chimwai; Chalermchart Ruechaikarm; Kanok-orn Dawkmaitate; Wannapan janlapa; Tasdow Kate-nate; Chalermpol Chalermpolyothin; Sommai Sriwisut; Noppadol prayoonsook; Chanasirin Klinmanee; Saowanee Sribua.
This study was carried out in the continuous irrigated rice cropping system during 2011-2013 by 8 rice research centers and Bureau of Rice Research and Development. Disease assessments were also conducted in the farmers’ fields in 16 provinces responsible by participating offices in the Upper and Lower North, Central, East and South of Thailand. The main objective was to investigate the relationship between meteorological data and disease epidemics through field survey and carry out experiment on continuous rice cultivation by sowing popular rice variety every month. Three significant rice pathogens i.e. blast, bacterial leaf blight and ragged stunt were collected for diversification study. Results revealed that there were disease epidemics in 19...
Tipo: PhysicalObject
Palavras-chave: Climate change; Rice pathogen; Rice epidemics; Continuous cropping; Irrigated rice; Thailand; ข้าว; การเปลี่ยนแปลงสภาพภูมิอากาศ; เชื้อสาเหตุโรคข้าว; การระบาดของโรคข้าว; การทำนาอย่างต่อเนื่อง; ข้าวนาชลประทาน; อุตุนิยมวิทยา; ประเทศไทย.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5656

ข้าวอายุสั้นสายพันธุ์ดี: CNT96024-61-1-PSL-1-2-20-2
Provedor de dados: 106
Autores: Benjawan Phonkhod; Acharaporn Na Lampang Noenplab; Phamorn Pattawatang; Saang Chirinte; Sumalee Sangprem; Wilai Palawisut; Pornsuree Kanjana; Wanakorn Intrarastit; Cawaporn Phumchoe; Duangorn Ariyapruek; Sard Toktiwa; Chuanchom Deerusamee; Mungmat Wangka; Doungporn Vitoonjit; Chairat Chanoo; Doungkamon Boonchuay; Jaturong Pipatpiriyanon; Preamkamon Moonnilta; Wiphavadee Chamnan; Naiyakorn Sanguankaew; Supatthra Narawatthana; Wantana Sriratanasak; Witchuda Rattanakarn; Rasamee Dhitikiattipong; Suradet Palawisut.
CNT96024-61-1-PSL-1-2-20-2 was a short-growth duration rice variety which was suitable for irrigated area encountered flooding in raining season. This rice variety derived from three–way cross of Suphanburi 1 /IR64//CNT86074-25-9-1. CNT96024-61-1-PSL-1-2-20-2 had maturity short growth duration so that it could be early harvested at about 87 days after sowing in wet season and 96 days in dry season. It had recorded yield potential of 1,004 kg/rai with the average yields of 681 kg/rai, which was comparable with the RD41 (742 kg/ rai), but 2% higher than that of RD43 (666 kg./rai). Plant stature of this variety was 80 cm. in height. Its grain was long slender shape, 10.54 mm. in length and 2.70 mm. in width, with straw colored paddy. Its 1,000 grains weight...
Tipo: Collection
Palavras-chave: Promising rice line; Short growth duration; Brown planthopper; Irrigated rice; Cooking quality; Head rice; Chalkiness; ข้าวสายพันธุ์ดี; ข้าวอายุสั้น; เพลี้ยกระโดดสีน้ำตาล; ข้าวนาชลประทาน; คุณภาพหุงต้ม; ต้นข้าว; ท้องไข่.
Ano: 2015
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5927

ปฏิกิริยาของพันธุ์ข้าวต่อโรคไหม้ และโรคขอบใบแห้ง ที่จังหวัดสกลนคร
Provedor de dados: 106
Autores: Angkana Kantajun; Suwat Jearakongman; Weerasak Hormsombut; Kunlayaa Boonsanga.
Blast and bacterial leaf blight diseases are major diseases, which cause severe losses to yield and quality of rice in north eastern region. An evaluation of reaction of rice cultivars/lines to blast and bacterial leaf blight is one of the activities under the program of germplasm improvement in north eastern region with the objective of selecting for the rice lines resistant to leaf and neck blast and to bacterial leaf blight. The experiments were carried out in 2013 at Sakon Nakorn Rice Research Centre using 99 rainfed lowland rice lines and 35 irrigated rice lines. An evaluation of leaf blast at seedling stage was conducted under the upland, short-row conditions. An evaluation of neck blast was conducted at flowering stage by spraying a spore suspension...
Tipo: PhysicalObject
Palavras-chave: Screening; Blast disease; Bacterial leaf blight; Rice diseases; Rainfed rice; Irrigated rice; Sakon Nakorn province; ข้าวนาน้ำฝน; ข้าวนาชลประทาน; โรคไหม้; โรคขอบใบแห้ง; การทดสอบปฏิกิริยาของพันธุ์; ความต้านทานต่อโรค; จ.สกลนคร.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5635

KKN04023-NKI-14-2-6-1: ข้าวเหนียวไม่ไวต่อช่วงแสงสายพันธุ์ดีเด่นภาคตะวันออกเฉียงเหนือ
Provedor de dados: 106
Autores: Somjai Saleeto.
Irrigated rice breeding project for Northeast Thailand was carried out to improve photoperiod insensitive glutinous rice variety for blast disease and gall midge resistant. The selected promising line; KKN04023-NKI-14-2-6-1, was finally obtained. The promising line was selected from the population of the cross between PTT97100-B-116-3-3 and KKN97031-NKI-B-B-122-1-1 which PTT97100-B-116-3-3  was used as female parent and KKN97031-NKI-B-B-122-1-1 as male parent. This line is photoperiod insensitive glutinous rice. Its harvesting time is about 131 days after sowing, plant height was 120 cm. The average yield of this line grown in Rice Research Center paddy fields was 614 kg/rai and on farmers field was 684 kg/rai. Rice hull color was brown, grain length of...
Tipo: Collection
Palavras-chave: Glutinous rice; Photoperiod insensitive; Blast resistance; Gall midge resistance; Promising rice line; Irrigated rice; Northeast Thailand; ข้าวเหนียว; ไม่ไวต่อช่วงแสง; ต้านทานโรคไหม้; ต้านทานแมลงบั่ว; ข้าวสายพันธุ์ดีเด่น; ข้าวนาชลประทาน; ภาคตะวันออกเฉียงเหนือ.
Ano: 2015
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5941

การจัดการสภาพแวดล้อมในการผลิตข้าวขาวพื้นแข็งตามมาตรฐานเกษตรอินทรีย์
Provedor de dados: 106
Autores: Kritkamol Paothong; Apichat Lawanpasert; Nittaya Ruensuk.
According to the environmental conservation and health care, the production of organic agricultural products is required and the requirement will be increased continuously. The cultivation of white rice with high amylose content in its starch is also widely done in the irrigated rice field in the Central Plain.  Therefore, environmental management in high amylose rice production for organic standards is necessary to seek. The development of such management was implemented in 5 activities including: (1) the test of appropriate planting methods for weed control; (2) the solarization for organic rice production; (3) reconditioning environment by using plants during transition period for organic rice production; (4) environmental air control by using buffer...
Tipo: PhysicalObject
Palavras-chave: Rice production; High amylose rice varieties; Organic standard; Environmental management; Irrigated rice; ข้าวขาวพื้นแข็ง; มาตรฐานเกษตรอินทรีย์; การจัดการสภาพแวดล้อม; ข้าวนาชลประทาน; การผลิตข้าว.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5645

สถานการณ์งานวิจัย ปี 2555 ศูนย์วิจัยข้าวพระนครศรีอยุธยา
Provedor de dados: 106
Autores: Marisa Yurasit; Pailin Nieuwenhuis; Supavinee Suangtho; Kritkamol Paothong; Pornpan Yanaso; Apichart Lawanprasert.
Responsibilities of Phra Nakorn Si Ayutthaya Rice Research Center are research and development on rice production such as varieties improvement, plant production , cultural practice, seed technology, seed production and appropriate technology transfer for farmers. There were  9 projects and 32 activities in 2012 fiscal budget as follows : 11 activities in the project on variety research and development in rainfed area, 3 activities in the project on variety research and development in irrigated area, 5 activities in the project on variety research and development in hybrid rice, 2 activities in the project on conservation and ultilization of rice genetic resource, 1 activity in the project on applied biotechnology to rice research and development, 2...
Tipo: PhysicalObject
Palavras-chave: Rainfed rice; Rice production; Irrigated rice; Hybrid rice; Seed technology; Organic rice; Seed production; Research project; Pra Nakon Sri Ayutthaya Rice Research Center; Ayutthaya province; Plant breeding; Rainfed lowland rice; ข้าวนาน้ำฝน; ข้าวนาสวน; ข้าวนาชลประทาน; ข้าวลูกผสม; วิทยาการเมล็ดพันธุ์; เกษตรอินทรีย์; การผลิตเมล็ดพันธุ์; โครงการวิจัย; การดำเนินงาน; ศูนย์วิจัยข้าวพระนครศรีอยุธยา; จ.อยุธยา; การปรับปรุงพันธุ์; การผลิตข้าว; การทดสอบพันธุ์.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5705

การยอมรับของเกษตรกรต่อข้าวนาชลประทานสายพันธุ์ดีเด่นในภาคตะวันออกเฉียงเหนือ
Provedor de dados: 106
Autores: Jongjai Mapakhe.
This study aims to evaluate the farmers' preference to promising irrigated rice lines grown in farmers' fields in north eastern Thailand during wet season 2013. The preference analyses were carried out at 2 stages; at reproductive stage to evaluate for agronomic characteristics, and after harvest to evaluate for grain physical qualities and cooking qualities. Two sets of promising lines were evaluated; glutinous and non-glutinous set. At the reproductive stage, the preference analyses were carried out in 3 provinces. It was found that the glutinous cultivar RD10 and the non-glutinous line KKN01041-23-2-1-1 were the most preferred cultivar/line by farmers. The reasons for their preference were because of the following traits; strong stem, good tillering...
Tipo: PhysicalObject
Palavras-chave: Farmer participatory; Farmer preferences; Promising rice line; Irrigated rice; North-eastern; Thailand; Sticky rice; Glutinous rice; Non-glutinous rice; ข้าว; ความพึงพอใจของเกษตรกร; การมีส่วนร่วมของเกษตรกร; ข้าวนาชลประทาน; ภาคตะวันออกเฉียงเหนือ; สายพันธุ์ดีเด่น; ข้าวเหนียว; ข้าวเจ้า; ประเทศไทย.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5632

รอยเท้าคาร์บอนจากระบบการปลูกข้าวที่สำคัญของประเทศไทย: ย้อนรอยการวัดการปลดปล่อยก๊าซมีเทนจากนาข้าวในประเทศไทย
Provedor de dados: 106
Autores: Benjamas Rossopa; Chitnucha Buddhaboon; Kingkaew Kunket; Waraporn Wongboon; Apiwat Hantanapong; Samran Inthaleang; Noppadol Prayoonsuk.
Measurement of methane emission from rice production systems is a methodology for data collection of Carbon Footprint from rice production system. Four major rice production systems were defined for methane emission measurement in 2012, including upland rice, rainfed rice, irrigated rice with good agricultural practices (GAP) and irrigated rice with alternative wet and dry (AWD). Gas samples were taken one week interval and analyzed by Gas Chromatograph; GC-8A as soon as possible after collection. The research found that upland rice could absorb CH4 at the rate of 0.176 kg methane rai-1 season-1. Rainfed rice production system in Northeast Thailand emitted CH4 at the rate of 85.26 kg rai-1 season-1 under transplanting and 51.64 kg rai-1 season-1 under...
Tipo: PhysicalObject
Palavras-chave: Carbon footprint; Emission; Rice production; Rice; Greenhouse gas; Irrigated rice; Rainfed rice; Upland rice; Methane emission; Good agricultural practices; CH4; Climatic factors; รอยเท้าคาร์บอน; การปลดปล่อยก๊าซมีเทน; การผลิตข้าว; ข้าว; ก๊าซเรือนกระจก; นาชลประทาน; นาน้ำฝน; นาที่สูง; ระบบนาข้าว; การจัดการแบบเกษตรดีที่เหมาะสม; การดูดซับก๊าซมีเทน; นาไร่; นาขั้นบันได; คาร์บอนไดออกไซด์; ก๊าซมีเทน.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5714

Cytogenotoxicity of rice crop water after application of the tricyclazole fungicide
Provedor de dados: 42
Autores: WANDSCHEER,ALANA C.D.; MARCHESAN,ENIO; TEDESCO,SOLANGE B.; FRESCURA,VIVIANE DAL-SOUTO; SOARES,CAMILLE F.; LONDERO,GUILHERME P.; TELÓ,GUSTAVO M.; HANSEL,DÂMARIS S.S.
ABSTRACT Tricyclazole is currently one of the fungicides recommended for the treatment of diseases in irrigated rice. However, there is relatively little information on its cytotoxic and genotoxic potential. The objective of this study was to evaluate the cytotoxicity and genotoxicity of rice crop water after apllication of the tricyclazole fungicide through the Allium cepa L. test. The rice crop water samplings were collected before and 1, 15 and 30 days after application of the fungicide in rice plant shoots. The Allium cepa roots were placed in contact with the rice crop water to check for possible chromosomal abnormalities and mitotic index of the bioindicators meristematic cells. The data obtained by the Allium cepa test indicates that the application...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioindicator; Chromosomal abnormalities; Mitotic index; Pesticide; Irrigated rice.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000301251

Effect of Nitrogen Rates and Split Nitrogen Fertilization on Grain Yield and its Components in Flooded Rice
Provedor de dados: 117
Autores: Hirzel,Juan; Pedreros,Alberto; Cordero,Karla.
Nutritional management in rice (Oryza sativa L.) crops is mainly associated with N fertilization, which is difficult to adjust in field conditions due to variations in soil type and climatic conditions. Between 28 000 and 46 000 ha per year is dedicated to rice production in Chile and profits depend on fertilization. A field experiment determine the effect of N rates and split N fertilization on grain yield and its components was carried out in two locations during two consecutive seasons (2007 to 2009), where five N rates and five split N fertilizations were evaluated. The locations were in Parral (36º2’ S; 72º08’ W, Vertisol) and San Carlos (36º19’ S; 71º59’ W, Inceptisol), with N rates of 80, 100, 120, 140, and 160 kg ha-1 applied in different...
Tipo: Journal article
Palavras-chave: Irrigated rice; Nitrogen management; Rice productivity.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000300015

Evaluation of the ORYZA2000 Rice Growth Model under Nitrogen-Limited Conditions in an Irrigated Mediterranean Environment
Provedor de dados: 117
Autores: Artacho,Pamela; Meza,Francisco; Alcalde,José Antonio.
ORYZA2000 is a growth model for tropical lowland rice ( Oryza sativa L.) developed by the International Rice Research Institute and Wageningen University. This model has been evaluated extensively in a wide range of environments. However, reports examining japonica cultivars growing in temperate climates are scarce. In this study, ORYZA2000 was calibrated and evaluated using data from experiments carried out in the South-Central area of Chile. These experiments were performed on a japonica rice cultivar growing under an irrigated Mediterranean environment at various N rates. ORYZA2000 was then applied to explore potential yield and grain yield response to N fertilization under likely weather conditions in the major rice-producing area in Chile. ORYZA2000...
Tipo: Journal article
Palavras-chave: ORYZA2000 model; Irrigated rice; Nitrogen; Mediterranean environment; Chile.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000100003

Performance of rice hybrids determined by different planting arrangements
Provedor de dados: 118
Autores: Goulart,Eduardo da S; Braga Schuch,Luis O; Tunes,Lilian V. Madruga de; Vieira,Jucilayne F.
The practices and techniques used in irrigated rice to improve performance include optimal plant density and the best arrangement of the plants in an area. This study aims to evaluate the performance and plasticity in the yield and grain quality of three rice hybrids using different row spacing. The field experiments were conducted during the 2010/2011 season in rice crops in Capão do Leão, Viamão and Uruguaiana in the state of Rio Grande do Sul, Brazil. Three different sowing arrangements were evaluated, i.e., row spacing of 17 cm, 34 cm, and 17 cm alternated with 34 cm, which corresponded to densities of 40, 20 and 32 kg ha-1, respectively. The experimental design used was randomized blocks with subdivided plots replicated three times considering each...
Tipo: Journal article
Palavras-chave: Irrigated rice; Oryza sativa L; Plant densities; Row spacing.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202015000100008

Influence of the wind on water application uniformity of a mechanical lateral move irrigation equipment using rotating plate sprinklers
Provedor de dados: 65
Autores: Faria,Lessandro Coll; Beskow,Samuel; Colombo,Alberto; Nörenberg,Bernardo Gomes; Rettore Neto,Osvaldo; Simões,Matheus Chagas.
ABSTRACT: Investigations demonstrate that the wind is the factor that causes the biggest negative influence on water application of sprinkler irrigation systems. Therefore, this paper aims to evaluate, in in-field conditions, the influence of wind on the water distribution uniformity of a mechanical lateral move sprinkler system used for irrigation in rice crop in the South of Rio Grande do Sul State, Brazil. The equipment is located at the Campo Experimental de Terras Baixas (ETB) of EMBRAPA/CPACT and operates with water emitters model I-Wob installed in drop tubes in a distance of 2.8m above the soil surface, having a uniform space of 2.3m between each other and pressure regulators of 68.9kPa. Sixteen in-field evaluations were done and they permitted to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Irrigated rice; Sprinkler; In-field tests; Irrigation uniformity.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000100083