| 氮肥基追比和追肥时期对小麦产量的影响 |
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| 引用本文： | 周奇,赵永敢,张存岭.氮肥基追比和追肥时期对小麦产量的影响[J].安徽农学通报,2009,15(5):92-95. |
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| 作者姓名： | 周奇 赵永敢 张存岭 |
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| 作者单位： | [1]濉溪县五沟农技站,安徽濉溪235131 [2]濉溪县科协,安徽濉溪235100 |
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| 基金项目： | 基金项目：淮北市重点科技计划项目（项目编号：07-1-35）：基于土壤肥力基础的小麦分期变量精确施肥技术研究. |
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| 摘 要： | 小麦氮肥基追比和追肥时期试验结果表明：适宜的基追肥比例为1：3及1：1。追肥时间宜在3月18日-3月28日之间。提高追肥比例会减少穗数和穗粒数，增加千粒重；追施氮肥时间后移会使穗数减少，穗粒数、千粒重增加，灌浆期延长，成熟期推迟。
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| 关 键 词： | 小麦 氮肥 基追比 追肥时期 产量影响 |
Effect of Topdressing Time and Ratio Between Basic Manuring and after Manuring of Nitrogenous Fertilizers on yield of Wheat |
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| Institution: | Zhou Qi et al. ( 1 Agricultural Technology Extension Station of Suixi County , Suixi 235131 ; 2 Scientific and technical association of Suixi county, 235100) |
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| Abstract: | Study on effects of topdressing time and ratio between basic manuring and after manuring of nitrogenous fertilizers on wheat yield were carried out. The results indicated that the optimum ratio between basic manuring and top dressing was 1 ： 3 and 1： loptimum nitrogenous fertilizer application time from March 18th to march 28th. Raising the top dressing ratio number of spikes number grains per spike were reduced, and the weght of thousand seeds was increased, putting off topdressing time of nitrogenous fertilizer reduced spike number. Increased number of seeds and weight of thousand seeds. The grouting time was lengthen and the mature period was late postpone. |
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| Keywords: | Wheat Nitrogenous fertilizer ratio between basic manuring and top dressing Topdressing time effect of yield |
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