| 大穗型小麦产量600kg/666.7m~2最佳氮磷钾配比与施肥量研究 |
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| 引用本文： | 杨洪宾,张建立.大穗型小麦产量600kg/666.7m~2最佳氮磷钾配比与施肥量研究[J].山东农业科学,1999(3):15-18. |
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| 作者姓名： | 杨洪宾 张建立 |
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| 作者单位： | [1]济宁市农业技术推广站 [2]济宁市任城区农业技术推广站 |
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| 摘 要： | 在高肥水地块，选择大穗型品种，采用三因子二次通用旋转回归设计方法，研究了大穗型小麦产量６００ｋｇ／６６６７ｍ２氮磷钾最佳用量、配比及其对产量构成的影响。试验结果表明，三者对产量的影响顺序是磷肥＞氮肥＞钾肥；每６６６７ｍ２最佳用量为Ｎ１７７５～１８７７ｋｇ、Ｐ２Ｏ５９２６～１１１０ｋｇ、Ｋ２Ｏ１４１４～１４４７ｋｇ，ＮＰＫ之比为１∶０５６∶０７８；施肥量对产量构成三因素的影响顺序是穗粒数＞千粒重＞穗数；明确了产量构成三因素中的主攻因素。
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| 关 键 词： | 小麦 大穗型 回归模型 NPK配比 |
The Optimum Proportion and Applied Rate of NPK for Wheat Varieties with Large Spike to Get 600kg/6667m2 Grains |
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| Abstract: | The optimum NPK proportion,applied rate and its effects on yield components for large spike wheat variety have been studied by regression analysis of three factors in the condition of high level water and fertilizer.The results indicate that the effect order on yield from high to low is phosphorus,nitrogen,potassium.The optimum applied rate is N 17751877kg/6667m2,P2O5 9261110kg/6667m2,K2O 14141447kg/6667m2,with the proportion of NPK 1056078.In addition, the fertilizer applied rate affects the yield components,with the order:grain number per spike>1000-grain weight>spike number. |
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| Keywords: | Wheat large spike regression analysis NPK proportion |
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