| 杂交籼稻氮肥运筹及精确施肥技术探讨 |
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| 引用本文： | 苏志富,罗来君.杂交籼稻氮肥运筹及精确施肥技术探讨[J].大麦与谷类科学,2014(2):22-24. |
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| 作者姓名： | 苏志富 罗来君 |
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| 作者单位： | 江苏省黄海农场,江苏 响水224624 |
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| 基金项目： | 农业部全国测土配方施肥试点补贴资金项目 |
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| 摘 要： | 分析了不同肥料运筹方式对杂交籼稻茎蘖动态、穗粒结构、养分吸收及肥料效应的影响,探讨了在高产栽培条件下的施肥指标,百公斤稻谷需N 1.83~1.98 kg,无氮基础产量百公斤稻谷需N 1.11 kg,氮肥利用率36.6~48.0%,氮肥基肥、蘖肥和穗肥的最佳比例40%、20%和40%,应用修正后的stanford公式实现杂交籼稻精确定量施肥。
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| 关 键 词： | 杂交籼稻 肥料效应 精确施肥 |
Discussion on Nitrogenous Fertilizer Operation and Precise Fertilization of Hybrid Indica Rice |
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| Institution: | SU Zhi- fu LUO Lai- jun (The Yellow Sea Farm of Jiangsu, Xiangshui 224624, China) |
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| Abstract: | In this paper,it analyzed the effects of different Fertilizer Strategies on tiller dynamic,panicle - grain structure,nutrients uptake and fertilizer response of hybrid indica rice. Under high yield cultivation conditions,100 kilograms of rice needed N 1. 83kg to 1. 98kg. Under nitrogen - free conditions,100 kilograms of rice needed 1. 11kg with utilization rate of nitrogen is 36. 6% to 48. 0% . The optimal proportion of basic,tillering,and panicle of nitrogen fertilizer ratio were 40% ,20% and 40% . Applying revised stranford formula on hybrid indica rice to achieve fertilization with precise fixed quantity. |
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| Keywords: | Hybrid Indica Rice Fertilization Response Precise Fertilization |
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