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Registros recuperados: 48
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Agronomic and economic viability of intercropping onion and lettuce Horticultura Brasileira
Mota,Wagner F da; Pereira,Rosimeire D; Santos,Gizeli de S; Vieira,Janiele Cássia B.
The study aimed to evaluate the agronomic and economic performance of intercropping onion and lettuce on four plant densities of each species. The experiment was set up in completely randomized blocks, with four replications and treatments arranged in a 4 x 4 factorial. Treatments resulted from a combination of four (100, 80, 60, and 40% of recommended plant densities in monoculture) plant densities for both lettuce and onion. Intercropping did not affect the agronomic performance of onion or lettuce. Higher plant densities (100% for both vegetables) resulted in higher lettuce and onion yields. The best economic results were observed using (a) onion at 80% of plant density combined with lettuce at 40 and 100% and (b) onion at 100% and lettuce at all...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lactuca sativa; Allium cepa; Crop association; Cropping systems; Plant density.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362012000200028
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Agronomic performance of the cowpea under different irrigation depths and row spacing Rev. Ciênc. Agron.
Costa Junior,Manoel de Jesus Nunes da; Bastos,Edson Alves; Cardoso,Milton José; Andrade Júnior,Aderson Soares de.
ABSTRACT The cowpea is of great socioeconomic importance in the North, Northeast and Mid-West of Brazil, and its irrigated farming has recently been on the increase in these regions. The aim of this study was to evaluate the agronomic performance of the cowpea 'BRS Tumucumaque' for different row spacings and irrigation depths, under the conditions of soil and climate of Teresina, in the State of Piauí. The experiment was carried out from August to November 2014, in a Yellow Argisol at the Experimental Area of Embrapa Meio-Norte in Teresina. The experimental design was of randomised blocks in subdivided lots, with four replications. The treatments consisted of five irrigation depths (40% ETo, 70% ETo, 100% ETo, 130% ETo and 160% ETo) in the main plot, and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Vigna unguiculata; Grain yield; Irrigation management; Plant density; BRS Tumucumaque.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500774
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Basic study for the appropriate cultivation method of groundnut (Arachis hypogaea L.) in Tokachi region. OAK
秋本, 正博; 中田, 翔子; 熊田, 総佳; 逵本, 秀久; 小林, 規人; 平等, 聡; 田中, 一郎.
十勝地方におけるラッカセイ生産の可能性を模索するため、帯広畜産大学実験圃場でラッカセイ品種「千葉半立」、「ナカテユタカ」、および「おおまさり」の栽培を行った。栽植方法(直播、あるいは移植)、および栽植密度(標準植:5.1 株/ ㎡、あるいは密植:7.7 株/ ㎡)の組合せによる4 試験区を設け、2016 年5 月23 日にそれぞれの品種の栽培を開始した。茎葉の黄変期に収穫を行い、収量構成要素や子実収量の評価を行った。千葉半立とナカテユタカでは、子実収量に対する栽植方法と栽植密度の効果が認められた。両品種とも移植を行った試験区で直播を行った試験区に比べ収量が高かった。これは、移植を行うことで単位面積当たりの稔実粒数が増加することに起因する。また、両品種とも密植を行った試験区で標準植を行った試験区に比べ収量が高かった。千葉半立は半立ち性、ナカテユタカは立性の草型をもつため光競合を起こしにくく、十勝地方で栽培する場合には都府県の慣行法よりも栽植密度を高めることで土地利用効率が高まり、子実収量が改善されると考えられる。おおまさりでは、子実収量に対して栽植方法の効果のみが認められた。移植を行うことで直播を行った場合に比べ総稔実粒数や1000 粒重が高まり、子実収量が増加した。一方、おおまさりでは子実収量に対する栽植密度の効果が認められなかった。おおまさりは伏性の草型を持つため光競合が起こりやすく、十勝地方においても密植条件下では密度障害が生じ増収につながらないと考えられる。千葉半立とナカテユタカでは、移植・密植の処理組合せによる試験区で、おおまさりでは、移植・標準植、および移植・密植の処理組合せによる試験区でそれぞれ最も子実収量が高く、いずれも子実収量の全国平均(180g/...
Palavras-chave: ラッカセイ; 直播; 移植; 栽植密度; 十勝地方; Groundnut; Direct seeding; Transplanting; Plant density; Tokachi region.
Ano: 2017 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4557
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Comportamento de três cultivares de café submetidas a diferentes espaçamentos entre linhas e regimes hídricos no Cerrado. Infoteca-e
GUERRA, A. F.; ROCHA, O. C.; RODRIGUES, G. C.; SANZONOWICZ, C.; MERA, A. C.; CORDEIRO, A..
RESUMO: O objetivo deste trabalho foi definir os melhores espaçamentos entre linhas de plantas de três cultivares de café arábica, Iapar 59, Acaiá Cerrado MG 1474 e Topázio MG 1190, submetidas a cinco regimes hídricos, buscando tornar eficientes os sistemas, manual e mecanizado, de manejo da cafeicultura no Cerrado. A cultivar Iapar 59 foi plantada com o espaçamento de 0,5 m entre plantas, e as variedades Acaiá Cerrado e Topázio foram implantadas no espaçamento de 0,60 m entre plantas na linha. O espaçamento entre linhas também variou conforme a variedade. A cultivar Iapar 59 foi implantada nos espaçamentos entre linhas de 2,20 m, 2,80 m e 3,80 m. As variedades Topázio e Acaiá Cerrado foram plantadas nos espaçamentos de 2,40 m, 3,40 m e 4,00 m. Semelhante...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Coffee; Spacing; Productivity.; Coffea Arábica; Café; Densidade de Plantio; Espaçamento; Irrigação; Manejo de Água; Produtividade.; Irrigation; Plant density; Water management..
Ano: 2007 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/571950
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Corn and sorghum agronomic studies in 1980 Thai Agricultural
Supot Faungfupong; Rachain Thiraporn; Porn Rungchang; Jarong Rungchuang.
38 tables
Palavras-chave: Corn; Maize; Sorghum; Agronomic studies; Seed maturity; Seed moisture; Plant density; Water use; Irrigation; Variety trials; Yields; ข้าวโพด; ข้าวฟ่าง; ลักษณะทางการเกษตร; การเจริญเติบโตของเมล็ด; ความหนาแน่นของพืช; การใช้น้ำ.
Ano: 1980 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4028
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Corn downy mildew program Thai Agricultural
Renfro, B.L.; Narong Singburaudom; Singh, Jaswant; Bhat, S. Shankara.
13 tables
Palavras-chave: Corn; Maize; Downy mildew; Peronosclerospora sorghi; Varieties; Disease resistance; Infection; Plant density; Nitrogen fertilizers; Phosphate fertilizers; Water stress; Yields; ข้าวโพด; โรคราน้ำค้าง.
Ano: 1977 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3933
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Corn production research in 1989 Thai Agricultural
Supot Faungfupong; Juangjun Duangpatra; Surapol Chowchong; Rachain Thiraporn; Porntip Srisurapol.
6 ill., 5 tables
Palavras-chave: Corn; Maize; Plant density; Seed vigor; Sweet corn; Production; N fertilizer rate; ข้าวโพด; ข้าวโพดหวาน; ความหนาแน่น; ความแข็งแรงเมล็ด; อัตราปุ๋ยไนโตรเจน.
Ano: 1989 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4332
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Crop production and soil management practices for improving yield of corn and sorghum Thai Agricultural
Supot Faungfupong; Wasana Wongyai; Surapol Chowchong.
12 tables
Palavras-chave: Corn; Maize; Sorghum; Crop production; Soil management; Fertilizers; Cultural practices; Topdressing; Leaf removal; Plant density; Intercropping; Grain yield; Yields; ข้าวโพด; ข้าวฟ่าง; การผลิตพืช; การจัดการดิน; การใส่ปุ๋ย; การเพาะปลูก.
Ano: 1975 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3826
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Cultivo do milho adensado: alternativa para maximizar o rendimento de grãos. Infoteca-e
MARCHÃO, R. L.; BRASIL, E. M..
ABSTRACT: The increment on plant density in narrow row spacing resulted in a greater absorption of photosynthetic active radiation particularly in tropical environments as in the Cerrado Biome. This review aims to analyze the main factors that affect plant arrangement definition in maize, the changes in plant arrangement recommendation and, the modification in plant traits that favored such changes. The choice of plant arrangement in the field must take into account cultivar, grower objective, input availability, planting date and disponible farmer structure. The association between better crop management and highly productive hybrids favored the increase in plant density and reduction in row spacing. Most of research results showed that grain yield was...
Tipo: Documentos (INFOTECA-E) Palavras-chave: Maize.; Densidade de Plantio; Espaçamento; Milho; Semeadura; Zea Mays.; Plant density; Row spacing..
Ano: 2007 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/570882
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Demanda nutrimental y manejo agronómico del cultivo Physalis peruvianum L. Colegio de Postgraduados
Gastelum Osorio, Delma Araceli.
La uchuva (Physalis peruvianum L.) es una fruta de gran importancia en varios países por sus propiedades medicinales y potencial económico que hacen de la uchuva una alternativa de producción. En México no existe investigación en torno a esta especie sobre su manejo agronómico, suelo, clima, plagas, enfermedades y su demanda nutrimental bajo condiciones hidropónicas. El presente trabajo se realizó con el objetivo de generar información sobre la demanda nutrimental y del efecto de diferente densidad de plantación sobre el rendimiento del cultivo y calidad del fruto en condiciones protegidas y sistema hidropónico. El experimento se realizó bajo el diseño experimental completamente al azar, se evaluó el efecto de la fuerza iónica de la solución nutritiva...
Palavras-chave: Physalis peruvianum; Solución nutritiva; Densidad; Rendimiento; Absorción nutrimental; Calidad; Nutrient solution; Plant density; Yield; Nutrient uptake; Quality; Maestría; Edafología.
Ano: 2012 URL: http://hdl.handle.net/10521/705
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Desempenho de cultivares de soja em função da população de plantas em diferentes ambientes de produção do Maranhão. Infoteca-e
VILELA, G. F.; FOLONI, J. S. S.; VIEIRA, P. F. de M. J..
bitstream/item/212970/1/BOLETIM-PD-24-ol.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: MATOPIBA; Soja; Variedade; Densidade de Plantio; Densidade de Semeadura; Interação Genética; Soybeans; Cultivars; Plant density.
Ano: 2020 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122295
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Developing an on-farm testing program for Thailand Thai Agricultural
Izuno, Takumi.
Palavras-chave: Corn; Maize; Sorghum; On farm testing; Variety trials; Weed control; Fertilizers; Plant density; Land preparation trial; Extension service; Adaptive research; Verification trials; Thailand; ข้าวโพด; ข้าวฟ่าง; การทดสอบในไร่นาเกษตรกร; การวิจัยเพื่อการปรับใช้; การทดสอบพันธุ์แบบหลายปัจจัย; การตลาด; ผลผลิต; คุณภาพ.
Ano: 1976 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3849
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DIFFERENT SOYBEAN PLANT POPULATIONS UNDER CENTRAL PIVOT IRRIGATION REA
Gava,Ricardo; Anselmo,Jefferson L.; Neale,Christopher M. U.; Frizzone,José A.; Leal,Aguinaldo J. F..
ABSTRACT Planting density can influence the competitiveness among plants mainly by water, nutrients and solar radiation, directly affecting yield. The purpose of this study was to evaluate the productivity of different soybean cultivars at different planting populations under irrigated and rainfed conditions. The experiment was conducted during the 2014/15 growing season, under center pivot irrigation in Chapadão do Sul – MS, Brazil. The experimental design was randomized complete block design with split-plot, as follows: Irrigated and Rainfed (plots) x Six cultivars (subplots) x Three Plant Populations (sub-subplots) with 4 replications. The irrigation management was realized by Penman-Monteith-FAO method. The cultivars used were: NA 5909 RR, DM 5958...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Plant density; Irrigated Soybean; Deficit irrigation; Soybean Yield.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000300441
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Efeito da densidade de plantas em dois níveis de fertilidade do solo em pinhão-manso (2009). Infoteca-e
MELLO, F. D. A.; CARGNIN, A.; MULLER, J. A.; ALBRECHT, J. C.; MELLO, R. M.; PIERDONÁ, R..
bitstream/item/78153/1/p2009-042.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Pinhão manso.; Jatropha Curcas.; Biodiesel; Plant density; Soil fertility..
Ano: 2009 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/711869
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Effect of irrigation regimes and the plant density on shear strength and physical properties of Azivash (Corchorus Olitorius) stem CIGR Journal
Azadbakht, Mohsen; Ghajarjazi, Ehsan; Barzanooni, Esmat; Pourbagher, Roghayeh; Tajari, Neda.
Three irrigation regimes, 6, 12 and 18 days, the distance between seeds in four levels: 5,10, 15 and 20 cm (density, respectively, 80, 40, 27 and 20 plants per m2) and a row spacing of 25 cm was considered that was tested in a randomized complete block design with three replications. The results showed that the effect of irrigation on cutting force, shear strength and energy per unit area was meaningful at 5% level and the effect of plant density on cutting force was meaningful at 1% level, but was not meaningful on shear strength. Also showed interaction between irrigation and plant density on cutting force, shear strength and energy per unit area is not meaningful. It was observed that the effect of irrigation and plant density on the length, diameter...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Azivash; Plant density; Shear strength; Irrigation regime.
Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3340
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Effect of plant densities and planting dates on some agronomic characteristics and grain yield of field corn varieties Thai Agricultural
Prakob Jan-aram.
2 tables
Palavras-chave: Corn; Maize; Plant density; Planting date; Grain yield; Varieties; ข้าวโพด; ข้าวโพดไร่; ลักษณะทางการเกษตร; ผลผลิต; ความหนาแน่น; วันปลูก; พันธุ์.
Ano: 1989 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4334
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Effects of plant densities and planting dates on some agronomic characteristics and grain yield of field corn varieties Thai Agricultural
Prakob Jan-Aram; Prasop Depyasuvarn; Kemchart Chaiyarat; Amnuay Tongdee; Narongsak Senanarong.
1 table
Palavras-chave: Corn; Maize; Plant density; Planting date; Grain yield; Yield trial; ข้าวโพด; ระยะปลูก; วันปลูก; ผลผลิตเมล็ด; การทดสอบผลผลิต.
Ano: 1987 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4246
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Efficiency of urea on broadcast-seeded rice in the Mekong delta of Vietnam as affected by time of split application and rate of seeding International Rice Research Institute
Hung, Ngo Ngoc.
93 leaves : ill. Thesis (M.S.) -- University of the Philippines at Los Baños
Tipo: Thesis Palavras-chave: Rice; Urea fertilizers; Fertilizer application; Sowing; Plant density; Vietnam.
Ano: 1995 URL: http://hdl.handle.net/123456789/662
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Efficiency of water use in sunflower grown in hydroponic system under saline stress REA
Santos Júnior,José Amilton; Gheyi,Hans R.; G. Filho,Doroteu H.; Soares,Frederico A. L.; Dias,Nildo da S..
In order to identify alternatives for the use of saline water in agricultural production, the effects of the use of brackish water in the preparation of the nutrient solution for the cultivation of sunflower (cv. EMBRAPA 122-V2000) were studied in hydroponic system on consumption and efficiency of water use for the production of achenes and biomass. A completely randomized design was used, analyzed in a 5x2 factorial scheme with three replications. The factors studied were five levels of salinity of nutrient solution (1.7 - control; 4.3; 6.0; 9.0; and 11.5dS m-1) and two plant densities - one or two plants per vessel. It was concluded that the water consumption of sunflower is a variable sensitive to the salinity of the nutrient solution, especially after...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Salinity; Plant density; Soilless culture; Helianthus annuus L..
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000400011
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Espaçamento e densidade para o cultivo do arroz de sequeiro na microrregião Alto Purus, Acre. I. Plantio em covas. Infoteca-e
CAMPOS, I. S.; MEDEIROS, J. A..
O arroz é um dos principais produtos agrícolas do país, sondo cultivado em maior ou menor escala, em todas as Unidades da Federação, onde encontra condições favoráveis de clima e solo. A produtividade média do arroz no Brasil, situa-se em torno de 1.500 kg/ha, colocando-se entre os menores níveis de produtividade alcançados pelos demais países produtores.A inferior qualidade de sementes e o enfraquecimento gradativo do solo devido aos métodos rudimentares de cultivo utilizados na maior parte da lavoura arrozeira acreana, tem feito do arroz uma cultura que apresenta baixos níveis de produtividade. O presente trabalho foi orientado para introdução de tecnologias que não apenas representem novas alternativas em relação ao tradicional, mas, sobretudo o aumento...
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Dry rice; Arroz de secano; Alto Purus; Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Oriza sativa; Densidad de plantas; Distancia entre hileras; Plantaciones lineales; Arroz; Arroz sequeiro; Cultivo de sequeiro; Espaçamento; Densidade de plantio; Plantio; Cova; Rice; Line planting (agroforestry); Plant density; Row spacing.
Ano: 1980 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492300
Registros recuperados: 48
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