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首页> 外文期刊>Archives of Agronomy and Soil Science >INTEGRATED NUTRIENT MANAGEMENT FOR SUSTAINABLE RICE PRODUCTION INTEGRIERTES NAHRSTOFFMANAGEMENT FUR NACHHALTIGE REISPRODUKTION
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INTEGRATED NUTRIENT MANAGEMENT FOR SUSTAINABLE RICE PRODUCTION INTEGRIERTES NAHRSTOFFMANAGEMENT FUR NACHHALTIGE REISPRODUKTION

机译：水稻可持续生产的综合养分管理水稻可持续生产的综合养分管理

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The concerns for sustainable soil productivity and ecological stability in relation to the use of chemical fertilizers have become an important issue. The fertilizer consumption of the nation is 74 kg/ha whereas it is 13 kg/ha in northeastern region ( as high as 44.4 kg/ha in Manipur and as low as 1.7 kg/ha in Arunachal Pradesh) The marginal farmers in northeastern region are more than 60% of the farming community who are unable to use the inorganic fertilizer and hence the productivity of rice has be en very poor (less than 1 tonne/ ha) in the region Organic manures are reported to enhance the fertilizer efficiency and reduce the requirement of inorganic fertilizers. Traditional green manures (Sesbania aculeate), organic manures (FYM) and problematic weeds (Ipomoea Carnea and Gliricidia maculata) may serve as alternative source of nutrients to the plants and may supplement any chemical fertilizers. Most of the green manure plants contain from 03 to 08% nitrogen (Khan et al., 2000). Integrating ferti lizer nitrogen with legume green manure as alternative source of nutrients can aid development of sustainable agricultural management system. A series of experiments was conducted from 1993 to 1999 for integrated nutrient management by using the differen t sources of organic manures, green manures and chemical fertilizers and their combinations to study the effect on productivity of rice (cultivars CR-1009 and CR-1018, 'Gayatri') under rainfed lowland and varying irrigation regimes The experiment was con ducted during kharif season at Water Technology Deras Research Farm, Mendhasal (Bhubaneswar). Green--manuring with Sesbania aculeata increased rice yield by 7 q/ha An increase of 3 q/ha was observed in comparison to beushening (Beushening is a cross plou ghing in standing water under lowland rice ecosystem when rice plants are approximately 45 days old) without fertilizer and green manure treatment--which is a farmer's practice in this coastal region Grain yield was higher in continuous submerged (5 ± 2 cm) treatments in comparison to intermittent irrigation (where irrigation was given to a depth of 7 cm and was reflooded after 2 days of disappearance of ponded water) treatments. However, the treatments of inorganic fertilizer (urea) in split dose gave a better yield under intermittent irrigation Both sources of nitrogen i.e. organic or inorganic or their combination proved better than control (no nitrogen). Application of organic manures like Sesbania aculeate and Ipomoea cornea or their combination with urea was found superior to other green and organic manures Gliricidia maculata gave higher grain yield in comparison to control (no nitrogen).
机译：与使用化肥有关的可持续土壤生产力和生态稳定性已成为一个重要问题。该国的化肥消耗量为74公斤/公顷，而东北地区为13公斤/公顷（曼尼普尔邦高达44.4公斤/公顷，阿鲁纳恰尔邦低至1.7公斤/公顷）东北地区的边际农民超过60％的农业社区无法使用无机肥料，因此该地区稻米的生产率非常低（不到1吨/公顷），据报道有机肥可提高肥料利用率并降低肥料利用率。要求无机肥料。传统的绿肥（Sesbania aculeate），有机肥（FYM）和有问题的杂草（Ipomoea Carnea和Gliricidia maculata）可以作为植物营养的替代来源，并可以补充任何化学肥料。大多数绿肥植物都含有03％至08％的氮（Khan等，2000）。将肥料氮与豆科植物绿肥整合在一起作为替代养分来源可以帮助发展可持续农业管理系统。从1993年到1999年，通过使用有机肥料，绿肥和化肥的不同来源以及它们的组合进行了一系列的综合养分管理试验，研究了对水稻生产力的影响（品种CR-1009和CR-1018，在雨养低地和不同灌溉制度下的“ Gayatri”试验在哈里夫季期间在门德哈萨尔（Bhubaneswar）的Water Technology Deras研究农场进行。绿化处理使Sesbania aculeata的水稻产量增加了7 q / ha，与灌丛相比，增加了3 q / ha（灌丛是低地水稻生态系统中静水时稻米约有45天龄的交叉繁殖） ）无需肥料和绿肥处理-在沿海地区，这是农民的一种实践。相比于间歇灌溉（灌溉深度为7厘米，积水消失2天后重新注水。但是，在间歇灌溉条件下，分批处理无机肥料（尿素）的产量更高，这两种氮源（即有机或无机）或两者的组合均优于对照（无氮）。发现施用有机肥料（例如Sesbania aculeate和角豆科角膜或与尿素结合）优于其他绿色和有机肥料，与对照（无氮）相比，Gliricidia maculata的谷物产量更高。

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