| 氮磷钾不同施入量对水稻产量的影响 |
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| 引用本文： | 李珣,付立东,齐春华.氮磷钾不同施入量对水稻产量的影响[J].北方水稻,2010,40(4):19-21,24. |
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| 作者姓名： | 李珣 付立东 齐春华 |
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| 作者单位： | 1. 辽宁省盐碱地利用研究所,辽宁,盘锦,124200
2. 盘锦市农村经济委员会,辽宁,盘锦,124010 |
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| 摘 要： | 以超级稻盐丰47为材料,通过氮(7水平)、磷(4水平)、钾(4水平)"3417"试验,探讨了滨海盐碱稻区高中低级土壤基础地力条件下,三要素不同施入量对水稻产量的影响。结果表明,在辽宁省大洼县西安农场的高、中级土壤肥力条件下,N、P2O5、K2O的最佳施用量分别为18.0、7.0、6.0 kg/667 m2,其比例为1︰0.39︰0.33,基础地力较高的土壤可获得750kg/667 m2左右的产量,基础地力中等的土壤可获得700 kg/667 m2左右的产量。在基础地力较低的土壤条件下,N、P2O5、K2O的最佳施用量为22.5、7.0、6.0 kg/667 m2,其比例为1︰0.31︰0.27,可获得650 kg/667 m2左右的产量。在高、中、低三级基础地力条件下,氮素均是影响水稻产量的主要因素,磷、钾位于第二、三位,但磷钾的影响程度远小于氮。
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| 关 键 词： | 水稻 产量 最佳施肥量 肥料 生产效率 |
Effect of Nitrogen, Phosphorus and Potassium Amounts on Yield of Rice |
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| LI Xun,FU Li-dong,QI Chun-hua.Effect of Nitrogen, Phosphorus and Potassium Amounts on Yield of Rice[J].Reclaiming and Rice Cultivation,2010,40(4):19-21,24. |
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| Authors: | LI Xun FU Li-dong QI Chun-hua |
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| Abstract: | The effect of three major elements on yield of rice variety Yanfeng 47 was conducted through '3417' design in coastal rice planting area.The results showed that under high and medium soil fertility conditions,the high yields of rice 700 kg/667 m2 and 750 kg/667 m2 were obtained when the amounts of N,P2O5,K2O were 18.0,7.0,and 6.0 kg/ 667 m2 with the ratio 1︰0.39︰0.33.The yield 650 kg/667 m2 could be obtained in low soil fertility condition when N,P2O5,K2O were 22.5,7.0,and 6.0 kg/667 m2 with the ratio 1︰0.31︰0.27.In high,medium and low basic soil fertility,nitrogen is the first factors affecting yield of rice,and the phosphorus and potassium are the next. |
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| Keywords: | Rice Yield Optimum fertilizer amount Fertilizer Production efficiency |
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