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Increasing yield and agronomic efficiency of boro rice(Oryza sativa)by fertigation with bed planting compared with conventional planting

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International Journal of Agricultural and Biological Engineering 2014年第5期7卷 34-47页

作者： Md.Halim Mahmud Bhuyan Most.Razina Ferdousi Md.Toufiq Iqbal Department of Farm Machinery Chuadanga Technical School and CollegeChuadanga 7200Bangladesh Islamia Academy High School&Agriculture College BaghaRajshahi 6280Bangladesh Department of Agronomy and Agricultural Extension University of RajshahiRajshahi 6205Bangladesh

The fertigation technique with raised bed planting for transplanted boro(winter,irrigated)rice production is a research focus nowadays.A field experiment compared two cultivation methods:the fertigation technique within raised bed planting on boro rice,and fertilizer broadcasting in the conventional planting *** to conventional fertilizer broadcasting,results showed that the new fertigation technique in raised bed planting increased grain yield of transplanted boro rice by up to 17.04%.It yielded a greater number of panicles per square meter,a greater number of grains per panicle,higher 1000-grains weight,and better plant growth *** percentage and weed infestation were *** six percent of irrigation water and time for application could be *** use efficiency for grain and biomass production was *** agronomic efficiency of nitrogen(N)fertilizer was significantly *** study concluded that fertigation in raised bed planting for transplanted boro rice is a new approach with higher yield and higher fertilizer and water use efficiency than the existing agronomic practice in Bangladesh.

关键词： boro rice fertigation with bed planting de-nitrification water use efficiency harvest index irrigated water management

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