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Livestock Banks and Food Security in Laos AgEcon
Begg, Michael; Santos, Paulo.
The literature analysing the impacts of livestock banks is limited to a small number of papers, mostly of a qualitative nature. This paper contributes to the knowledge on the impacts of this type of intervention on short- term household food security through the analysis of original data form 112 households that participated in a pig bank in Laos. Taking advantage of the staggered implementation of the program, we use propensity score matching the show that receiving pigs reduces household rice production by approximately 34 percent in the first harvest after participation commenced. However, the effects are differentiated across initial wealth status of the beneficiary: if the household was classified as being poor before the start of the program,...
Tipo: Conference Paper or Presentation Palavras-chave: Laos; Livestock banks; Rice production; Propensity score matching; International Development.
Ano: 2010 URL: http://purl.umn.edu/58883
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The Adoption of Water Conservation and Intensification Technologies and Farm Income: A Propensity Score Analysis for Rice Farmers in Northern Ghana AgEcon
Faltermeier, Liane; Abdulai, Awudu.
This study uses cross-sectional data of 342 small-scale lowland rice farmers in Northern Region of Ghana to analyze the impact of the adoption decision of bund construction and seed dibbling on net returns, input demand and output supply. Matching was conducted based on Mahalanobis distance combined with propensity score. Balancing tests by checking the mean standardized absolute bias in the matched sample were conducted as well as sensitivity analysis to check for hidden bias due to unobservable selection. The empirical results of impact assessment using propensity score matching controlling for self-selection bias suggest that input demand is significantly higher for adopters of bunds, but not statistically different for adopters and non-adopters of...
Tipo: Conference Paper or Presentation Palavras-chave: Propensity score matching; Evaluation; Sensitivity analysis; Rosenbaum bounds; Water conservation methods; Bunds; Rice production; Crop Production/Industries; Farm Management.
Ano: 2008 URL: http://purl.umn.edu/6354
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MEASURING THE ENVIRONMENTAL IMPACTS OF TECHNICAL PROGRESS IN LOW-INCOME AGRICULTURE: EMPIRICAL EVIDENCE ON IRRIGATION DEVELOPMENT AND FOREST PRESSURE IN PALAWAN, THE PHILIPPINES AgEcon
Shively, Gerald E..
Data from the Philippines are used to measure impacts of technical progress in lowland agriculture on upland forests. Irrigation development, labor demand, and employment are studied. Total annual labor use increased following irrigation. Employment of household members living along forest margins increased also. Time allocation data from the uplands show that increases in employment among households living along the forest margin were accompanied by reductions in forest clearing and forest-degrading activities. Empirical findings show irrigation-induced increases in agricultural employment can reduce pressure on tropical forests. Implications for policies and trends in use of labor saving methods that could undermine the observed changes are discussed.
Tipo: Conference Paper or Presentation Palavras-chave: Philippines; Irrigation; Rice production; Labor markets; Environment; Environmental Economics and Policy; Labor and Human Capital; Resource /Energy Economics and Policy.
Ano: 1999 URL: http://purl.umn.edu/21626
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DIFERENÇAS DE FINALIDADE E MODIFICAÇÕES ESTRUTURAIS NA FILIÈRE DO ARROZ BIODINÂMICO: O CASO DE SENTINELA DO SUL, RS AgEcon
Hoff, Debora Nayar; Bruch, Kelly Lissandra.
This article aims to study the implications that result from the purpose differences between the biodynamic rice producer systems and the industry of this product in the filière structure. The theoretical approach includes system comprehension and the company vision in the systemic approach, while focusing on the purpose of productive systems according to three possible axles: economic, financial and social. An approach on filière helps in the visualization of the impacts the purpose that system differences studied have on the supplying and industrialization structure of biodynamic rice. A descriptive-comparative research was undertaken based on primary data obtained with the companies and through interviews with owners and managers contacted and on...
Tipo: Journal Article Palavras-chave: Agribusiness; Rice production; Production chains; Filière; Biodynamic rice..
Ano: 2007 URL: http://purl.umn.edu/43700
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Economic impacts of high labour cost and herbicide resistance for the management of annual barnyardgrass (Echinochloa crus-galli) in rice production in the Philippines AgEcon
Beltran, Jesusa C.; Pannell, David J.; Doole, Graeme J..
Implications of increasing labour cost and development of herbicide resistance for profitable weed management in Philippine rice farming systems are investigated. The study employs RIMPhil (Resistance and Integrated Management in the Philippines), a bioeconomic simulation model developed to provide a comprehensive assessment of integrated weed management programmes for the control of annual barnyardgrass (Echinochloa crus-galli) in rice crops. Results indicate that herbicide application will become increasingly economically attractive, relative to manual weeding, as labour cost increases. This is important since urban migration in the Philippines continues to increase the scarcity of rural labour. Results also show that the onset of herbicide resistance...
Tipo: Working or Discussion Paper Palavras-chave: Barnyardgrass; Bioeconomic model; Herbicide resistance; Integrated weed management; Rice production; Crop Production/Industries; Farm Management; Research and Development/Tech Change/Emerging Technologies.
Ano: 2011 URL: http://purl.umn.edu/108770
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Weather Derivatives as Risk Management Tool in Ecuador: A Case Study of Rice Production AgEcon
Vedenov, Dmitry V.; Sanchez, Leonardo.
This paper analyzes efficiency of weather derivatives as insurance instruments for rice in Ecuador. Weather derivatives were constructed for each county/season combination. Complicated weather models were estimated for the index, and a copula approach was used to get the probability distributions. We find Risk-reducing efficiency varies across county and season.
Tipo: Working or Discussion Paper Palavras-chave: Agricultural risk management; Index insurance; Weather derivatives; Copula approach; Rice production; Agribusiness; Crop Production/Industries; Risk and Uncertainty; Q14; Q59.
Ano: 2011 URL: http://purl.umn.edu/98747
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Preferences, Norms and Constraints in farmers' agro-ecological choices. Case study using a choice experiments survey in the Rhone River Delta, France AgEcon
Jaeck, Melanie; Lifran, Robert.
The aim of this paper is to elicit the sensitivity of farmers to payments for agro-environmental services in a context of strong agro-ecological and policy constraints. We present results from a choice experiment survey performed among the whole population of agricultural decision-makers (104) in the Camargue area. Several econometric models have been estimated, the most significant being the Latent Classes one. The estimated parameters of the utility function, together with the parameter associated with the monetary attribute provided the monetary value of each relevant agro-ecological attribute and the associated outcomes (average and risk yield).
Tipo: Conference Paper or Presentation Palavras-chave: Agricultural Technological Choices; Agro-environmental measures; Policy Instruments design; Choice Experiments; Sample Selection Model; Latent classes Model; Random Parameter Model; Rice production; Labelling; Organic farming.
Ano: 2009 URL: http://purl.umn.edu/47948
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ความเป็นไปได้ของการใช้สารปรับปรุงดินเพื่อลดก๊าซเรือนกระจกและขณะเดียวกันรักษาผลผลิตข้าว: รายงานการวิจัยฉบับสมบูรณ์ Thai Agricultural
Patcharee Saenjan; Daungsamorn Tulapithak; Kasuyuki Inbuchi.
Field experiment was conducted in farmer’s rice field with loamy soil in Khon Kaen province, northeast of Thailand during to study the effect of different levels of sulfate (SO42-) on methane emission and rice yield. SO42- was applied at the rate of 0, 50, 100, and 210 kg SO42- ha-1 by using ammonium phosphate (42% SO42-) with balanced amount of 80 kg N, 100 kg P2O5 and 80 kg K2O ha-1 by adding various fertilizers. The experiment was laid out in randomized completely block design (RCBD) with tripled replication. CH4 flux was measured every week by using closed chambers method. Global warming potential (GWP) was also calculated. Soil samples were collage at each growth stage to determine SO42-, NH4+ and Fe2+. Rice yield was measured at harvest. The...
Tipo: PhysicalObject Palavras-chave: Rice; Paddy soil; Rice production; Rice yield; Sulfate; Global warming potential; GWP; Methane; Feasible soil; Greenhouse gas emission; ข้าว; ดินนา; การผลิตข้าว; ภาวะโลกร้อน; ก๊าซมีเทน; ก๊าซเรือนกระจก; การปลดปล่อยก๊าซมีเทน; สารปรับปรุงดิน; ปุ๋ยซัลเฟต; การลดปริมาณก๊าซมีเทน; จ.ขอนแก่น.
Ano: 2011 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5715
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การจัดเขตศักยภาพการผลิตข้าวจังหวัดสุโขทัย Thai Agricultural
Walaiporn Sanwong; Siraporn Chuea-uan; Yaowaluk Kunyame; Pitchanan Kanghae.
The studied of rice potential zoning in Sukhothai province during 2009-2011 found that in irrigated area most of paddy fields grew rice twice in dry season, the rest time in rainy season paddy fields were fallowed. Rice growing areas could be divided by the potential suitability of soil at 4 levels; high favorable, moderately suitable, less favorable and those suitable for other crops. Most of soil texture were clay loam, pH range highly acid to moderately acid (4.6-5.0), organic matter content over 2.1%, available Phosphorus less than 5 ppm and available Potassium higher than 80 ppm. The planted rice varieties are PSL2 and SPR3. Technology testing trials showed that; in high favorable rice soil (soil group 5, 7 and 15) were suited to the soil analyzed...
Tipo: PhysicalObject Palavras-chave: Rice production; Rice zoning; Soil potential; Potential zoning; Sukhothai province; การผลิตข้าว; เขตการผลิตข้าว; ศักยภาพการผลิตข้าว; การจัดเขตศักยภาพ; แผนที่ดิน; จ.สุโขทัย.
Ano: 2012 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5588
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การปรับปรุงความอุดมสมบูรณ์ของดินนาในการผลิตข้าวโดยใช้ปุ๋ยเคมีและวัสดุเหลือใช้จากอุตสาหกรรมผลิตน้ำตาลทราย Thai Agricultural
Wiwat Ingkapradit; Jaturong Pipatpiriyanon; Win-U Wong-Ubon.
Filter cake is by - product of cane sugar manufacture. It consists of plant nutrient which is useful for soil fertility improvement. According to low fertility of most paddy soils, an experiment had been conducted with combination of chemical fertilizer application and filter cake incorporation for soil fertility and yield improvement in two different soil types in wet season during 1992-2002. This experiment was 4x3 factorial in randomized complete block design, 3 replications, 2 factors with 4 filter cake rates at 0, 500, 1,000 and 1,500 kg/rai and 3 nitrogen rates at 0, 3 and 6 kg N/rai for photo sensitive rice cultivar (Khao Dawk Mali 105) planted in Koksamrong Soil Series (sandy loam, mixed isohyperthermic, typic tropaqualfs) at Lop Buri Rice Research...
Tipo: Collection Palavras-chave: Paddy soil; Soil fertility improvement; Rice production; Filter cake; Chemical fertilizer; KDML 105; Chainat 1; Yield; By products; Wastes; ข้าว; การปรับปรุงความอุดมสมบูรณ์ของดิน; กากตะกอนน้ำตาล; ปุ๋ยเคมี; พันธุ์ขาวดอกมะลิ 105; พันธุ์ชัยนาท 1; ผลผลิต; วัสดุเหลือใช้; ผลผลิต; ดินนา; อุตสาหกรรมผลิตน้ำตาลทราย.
Ano: 2008 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5101
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ความสัมพันธ์ระหว่างการระบาดของโรคข้าวกับการเปลี่ยนแปลงของสภาพภูมิอากาศ ในพื้นที่นาชลประทานจังหวัดชัยนาท และนครสวรรค์ Thai Agricultural
Duangkamon Boonchuay; Anakkapon Boonchuay; Duangporn Vithoonjit.
Relationship of rice disease epidemics and climate change for study the effect of climate change on the disease epidemics and pathogens. Cultivated rice variety RD31 and RD41 every month since January 2012 - December 2013; observed disease incidence and disease severity in seedling, tillering and panicle stage. The results showed that found rice diseases all months in RD31 and RD41 such as bacterial leaf blight disease (BLB), brown spot disease, narrow brown spot disease, dirty panicle disease, false smut disease, orange leaf disease, rice grassy stunt disease and ragged stunt disease. BLB is the major disease in these areas and found almost year in tillering to panicle stage. Severe epidemics in August and December. BLB infected RD41 more than RD31, that...
Tipo: PhysicalObject Palavras-chave: Global warming; Climate change; Rice diseases; Rice pathogen; Epidemics; Rice; RD 31 variety; RD 41 variety; Rice production; Plant diseases survey; Rice diseases; Pathogens; Irrigation area; Chai Nat province; Nakhonsawan province; ข้าว; พันธุ์กข 31; พันธุ์กข 41; การผลิตข้าว; นาปักดำ; การสำรวจโรคพืช; โรคข้าว; เชื้อสาเหตุของโรค; การระบาดของโรค; ภาวะโลกร้อน; การเปลี่ยนแปลงสภาพภูมิอากาศ; การประเมินความเสียหาย; พื้นที่ชลประทาน; จ.ชัยนาท; จ.นครสวรรค์.
Ano: 2014 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5694
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อิทธิพลของสภาพแวดล้อมต่อความแปรปรวนของลักษณะประจำพันธุ์ข้าวไม่ไวต่อช่วงแสง Thai Agricultural
Pichatorn Ruangdej; Nutthapun Pinkum; Precha Punyaphong; Jarat Singkee.
Effect of climate change on rice growth and yield had been studied during January 2011 through October 2013 at Chiang mai Rice Research Center, Chiang mai Province. Experimental design was split plot with three replications. Main plot were planting dates in each month as planting at January (stage1) April (stage2) July (stage3) and October (stage4). Sub plots were rice varieties, consisting of Plathumtani 1, Phitsanulok 2, RD31 and RD41. The research found that the climate change under stress of environmental. Effect to the rice varieties as a permanent. Planting in January in 2011, temperature in the night less than 15 degree and between the day temperature more than 30 degree effect to plant height of Plathumtani 1 and effect to germination of rice seed....
Tipo: PhysicalObject Palavras-chave: Rice; Rice production; Non photosensitive rice; Climatatic change; Global warming; Phitsanulok 2 variety; Plathumtani 1 variety; RD 31 variety; RD 41 variety; Growth affect; Characteristic; Variance; Temperature; Season; ข้าว; การผลิตข้าว; ความเปลี่ยนแปลงของภูมิอากาศ; พันธุ์ข้าวไม่ไวต่อช่วงแสง; พันธุ์พิษณุโลก 2; พันธุ์ปทุมธานี 1; พันธุ์กข 31; พันธุ์กข 41; การปลูกปักดำ; สภาพแวดล้อม; ลักษณะประจําพันธุ์; ความแปรปรวน; อุณหภูมิ; ฤดูกาล; การเจริญเติบโต; ผลผลิต; ภาวะโลกร้อน.
Ano: 2014 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5699
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การเปลี่ยนแปลงสภาพภูมิอากาศและการระบาดของโรคข้าวในนาชลประทานที่ปลูกต่อเนื่องในจังหวัดปทุมธานี Thai Agricultural
Nittaya Ruensuk; Chalermkwan Chimwai; Acharaporn Na Lampang Noemplab; Yuthapong Petcharaporn.
Climate change may affect rice-growing environments and disease epidemics. Therefore, the experiment was conducted at Prathum Thani Rice Research Center during 2011 – 2012 Effect of Climate change on the outbreak of rice diseases. The objective was to study two rice varieties, RD31 and PSL2 were planted every month throughout the year. Random survey for disease incidence was done in the rice plot, and meterogical data such as temperature, relative humidity and rainfall collected from the meterological station. Base on meterological data, the average annual temperature increased in the year 2012, but the average rainfall and humidity decreased. Disease found in 2011 were rice blast, brown spot, bacterial leaf streak and red stripe disease. Disease found in...
Tipo: PhysicalObject Palavras-chave: Rice; Rice production; Continuously cropped; Irrigated rice fields; RD 31 variety; Phitsanulok 2 variety; Rice disease; Epidemics; Plant diseases survey; Climate change; Global warming; Prathum Thani province; ข้าว; การปลูกข้าวต่อเนื่อง; นาชลประทาน; พันธุ์กข 31; พันธุ์พิษณุโลก 2; โรคข้าว; การระบาดของโรค; การสำรวจโรคพืช; ภาวะโลกร้อน; การเปลี่ยนแปลงสภาพภูมิอากาศ; การประเมินความเสียหาย; จ.ปทุมธานี.
Ano: 2013 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5698
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การจัดเขตศักยภาพการผลิตข้าวจังหวัดเพชรบุรี Thai Agricultural
Satit Tayapat; Saowaluck Arom; Tanadun Chuenmathunpaijit.
Rice production potential zoning of Petchaburi province had been conducted from 2010 to 2012. Research methodology composted of general rice production information collection, soil sampling and crop cutting from farmer field, and field experiment. The research found that there were 4 major rice varieties growing in the area Chainat1, Phitsanulok2, Suphanburi60 and Suphanburi1. The field experiments for comparing of fertilizer application were conducted 2 seasons at 12 locations. The results showed that L1 area, recommended fertilizer application (F1) gave the average yield of 1,067 kg/rai, while fertilizer application base on soil analysis (F2) gave the average yield of 1,222 kg/rai. Farmers’ practice of fertilizer application (F3) gave the average yield...
Tipo: PhysicalObject Palavras-chave: Rice potential zoning; Petchaburi province; Yield; Rice production; Landform; Fertilizer; Cost; การจัดเขตศักยภาพการ; จังหวัดเพชรบุรี; ผลผลิตข้าว; การผลิตข้าว; ข้าว; ลักษณะดิน; การใส่ปุ๋ย; การจัดการปุ๋ย; การทดสอบพันธุ์; ต้นทุนการผลิต; การลดต้นทุน; การดูแลรักษา; ศักยภาพการผลิต.
Ano: 2013 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5690
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ผลของการเปลี่ยนแปลงสภาพภูมิอากาศต่อชนิดของเชื้อสาเหตุและการระบาดของโรคข้าวในนาชลประทานที่ปลูกต่อเนื่องในจังหวัดแพร่และอุตรดิตถ์ Thai Agricultural
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
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ข้าวลืมผัวจากการวิจัยสู่การใช้ประโยชน์: เทคโนโลยีการผลิตข้าวลืมผัว Thai Agricultural
Acharaporn Na Lampang Noenplab; Kawaporn Phumchoei; Apichart Noenplab; Pongsa Sukserm; Rattapong Meekun; Silawan Chandharabutra; Titima Khantiyawit; Supattana Bureerat.
Luempua is a dark-purple glutinous upland rice belongs to the Mong hilltribe. The origin prior to the time of seed purification was the mountainous area 450 m above sea level. The variety is normally grown in the wet season under upland condition. To obtain the information for appropriate time of sowing and growing with water as for the lowland sowing, Luempua was sown by transplanting in the cement container every 15 days from 2010-2013 at Phitsanulok Rice Research center (PSL). Results revealed that the most appropriate time of sowing is from mid to the end of May and the lowland areas especially those prone to Brown planthopper infestation are not recommended. Seed conservation was carried out at 3 sites i.e. upland farmer’s field, amphoe Khao Kor,...
Tipo: PhysicalObject Palavras-chave: Luempua rice; Nutrition; Anthocyanin; Antioxidant; Organic production; Brown planthopper; Production technology; Rice variety; Coloured rice; Glutinous rice; Rice production; Cost; ข้าวลืมผัว; คุณค่าโภชนาการ; แอนโทไซยานิน; สารต้านอนุมูลอิสระ; การผลิตแบบอินทรีย์; เพลี้ยกระโดดสีน้ำตาล; เทคโนโลยีการผลิต; ข้าวเหนียวดำ; การผลิตข้าว; วิธีการเพาะปลูก; การใส่ปุ๋ย; การลดต้นทุน.
Ano: 2014 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5676
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ผลของการปลูกพืชหมุนเวียนต่อความอุดมสมบูรณ์ของดินและผลผลิตข้าวนาขั้นบันได Thai Agricultural
Suttakarn Jaikawin; Pitchanan Kanghair; Apiwat Hantanapong; Silawan Chantharabut.
Problem of low soil fertility is one reason of low yield in rice terraces because of the soil was less clay mineral content, less total soil density, soil acidity and low soil nutrients are not sufficient for the growth of rice. The crop rotation is one approach to solving this problem. The experiment aims to study the effect of crop rotation on soil fertility and yield in rice terraces. This experiment was conducted the main crop is rice cv. Sew Mae Jan and the experimental design was randomize complete block design with 4replications and4 treatments: 1) rice-lablab bean rotation 2) rice-wheat rotation 3) rice- cabbage rotation 4) rice (check). The results revealed that the crop rotation 4 treatments had not difference of soil fertility between before and...
Tipo: PhysicalObject Palavras-chave: Rice; Rice terraces; Rice production; Crop rotation; Soil fertility; Increase productivity; ข้าว; นาขั้นบันได; การผลิตข้าว; การปลูกพืชหมุนเวียน; ถั่วแปยี; ข้าวสาลี; กะหล่ำปลี; ความอุดมสมบูรณ์ของดิน; การเพิ่มผลผลิต.
Ano: 2014 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5664
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การจัดเขตศักยภาพการปลูกข้าวของประเทศไทย: ทางเลือก โอกาส และความท้าทาย Thai Agricultural
Chitnucha Buddhaboon; Benjamas Rossopa; Piyaphan Srikum; Sommai Lertna; Waraporn Vongboon; Nopadon Prayoonsook; Duangporn Witoonjit; Yupin Rammanee; Kingkaew Kunket.
Zoning of rice production potential in Thai rice area has been conducted from 2000 to 2013. The objectives of the project were 1) to define the potential of rice area in Thailand in term of soil suitability and productivity, 2) to create map of rice production zoning with appropriate recommendation. Methodology to run the project consisted of secondary data collection, field survey, crop cutting, field experiment, and mapping. The research found that total of 12.6 M ha of rice areas in Thailand it was suitable for rice production about 8.2 M ha. Rice soil was more fertile in the central plain as compared to other region. Most of the farmer grew recommended rice varieties. There were three major groups of growing rice variety, jasmine rice, white rice, and...
Tipo: PhysicalObject Palavras-chave: Rice; Zoning area; Rice production; Alternative; Land capability; Agricultural potential; Land use; Production technology; Soil fertility; GIS; ข้าว; พื้นที่การจัดเขต; การผลิตข้าว; ศักยภาพการผลิต; การทำแผนที่; การใช้ที่ดิน; ความอุดมสมบูรณ์ของดิน; เทคโนโลยีการผลิต; ข้าวหอม; ข้าวขาว; ข้าวเหนียว; การเพิ่มผลผลิต.
Ano: 2013 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5709
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อิทธิพลของสภาพแวดล้อมต่อความแปรปรวนของลักษณะประจำพันธุ์ข้าวไม่ไวต่อช่วงแสง Thai Agricultural
Prachack Lengbumrung; Kittima Raksopa; Charoen Thongraya; Wanchai Rojanahusdin; Anchalee Prasertsak.
Study on effect of environment on four rice planting durations (January, April, July and October) and four rice varieties (PTT1, PSL2, RD31 and RD41) was conducted at Ratchaburi Rice Research Center in 2011. The experimental design was split plot in RCB with three replications. Varietal characteristics, yield, yield component and meteorological data were recorded. PTT1 variety showed the longest maturity (128 days). Rice planting in April showed higher yield (808 kg/rai) than that planting in other durations. In addition, planting in April also showed the highest panicle length, number of filled seeds/panicle and 1,000 seed weight. The longest harvesting period (123 days) and lowest yield (510 kg/rai) was found in October planting. This could be...
Tipo: PhysicalObject Palavras-chave: Rice; Rice production; Non photosensitive rice; Climatatic change; Global warming; Phitsanulok 2 variety; Plathumtani 1 variety; RD 31 variety; RD 41 variety; Growth affect; Characteristic; Variance; Temperature; Season; Planting date; Rice seed; ข้าว; การผลิตข้าว; สภาพแวดล้อม; พันธุ์ข้าวไม่ไวต่อช่วงแสง; พันธุ์พิษณุโลก 2; พันธุ์ปทุมธานี 1; พันธุ์กข 31; พันธุ์กข 41; การปลูกปักดำ; การเปลี่ยนแปลงสภาพภูมิอากาศ; ลักษณะประจําพันธุ์; ความแปรปรวน; อุณหภูมิ; ฤดูกาล; การเจริญเติบโต; ผลผลิต; ภาวะโลกร้อน; เมล็ดพันธุ์.
Ano: 2013 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5700
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ผลของการจัดการน้ำต่อการปล่อยก๊าซมีเทนในนาข้าวศูนย์วิจัยข้าวลพบุรี Thai Agricultural
Arthit Kukam-oo; Naiyakon Sa-ngwnkaew; Kritkamol Paothong; Perapol Ratana.
Effect of water management to emission methane gas in Lopburi Rice Research Center dry season in 2014. Under Development of Alternative Technologies for Greenhouse Gas Emission Reduction and Information System for Decision Support of Policy Maker Project was experimental by Randomized Complete Block (RCB) 3 Replications to compare greenhouse gas emission from 3 Alternative Wet and Dry (AWD) with -10, -15, -20 cm water level and continuous irrigation method. Results showed that Lopburi Rice Research Center was sandy loam soil and AWD irrigation with -10 to -20 cm water level was 27 – 31 % water saving with comparative continuous irrigation method. AWD irrigation with -15 cm water level drainage tended to be best practice with minimum emission and water...
Tipo: Collection Palavras-chave: Water management; Greenhouse gas emission; Rice production; Lopburi province; Methane emission; การจัดการน้ำ; การเกิดก๊าซเรือนกระจก; การผลิตข้าว; จังหวัดลพบุรี; การปล่อยก๊าซมีเทน.
Ano: 2015 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5944
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