| 不同磷肥用量对玉米产量·效益及养分吸收的影响 |
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| 引用本文： | 邢月华,汪仁,包红静,宫亮,王聪翔,李振玉.不同磷肥用量对玉米产量·效益及养分吸收的影响[J].安徽农业科学,2011,39(32):19834-19835,19923. |
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| 作者姓名： | 邢月华 汪仁 包红静 宫亮 王聪翔 李振玉 |
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| 作者单位： | 1. 辽宁省农业科学院环境资源与农村能源研究所,辽宁沈阳,110161
2. 辽宁省朝阳县波罗赤镇农业综合服务站,辽宁朝阳,122632 |
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| 基金项目： | 国际植物营养研究所(IPNI)项目;国家科技支撑计划粮丰工程项目(2011BAD16B12);辽宁省百千万人才工程项目 |
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| 摘 要： | 目的]为了探讨不同磷肥用量对玉米产量、效益及养分吸收的影响,确定经济施磷量。方法]采用田间试验方法,在海城、昌图和彰武地区进行不同磷肥用量试验。结果]施磷可显著增加玉米产量和经济效益,各施磷处理比不施磷处理增产3.2%～21.5%,增收173～1 724元/hm^2;施用磷肥可促进玉米对氮磷钾养分的吸收,但随着施磷量的增加,磷肥的增产效益和利用率降低。结论]海城、昌图和彰武地区最高产量施磷量分别为89、116和129 kg/hm^2,经济施磷量分别为77、98和100 kg/hm^2。
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| 关 键 词： | 玉米 磷肥 产量 效益 养分吸收 |
Effects of Different Phosphorus Application Amounts on Yield, Profit and Nutrient Uptake of Maize |
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| Institution: | XING Yue-hua et al(Environmental Resource and Rural Energy Research Institute,Liaoning Academy of Agricultural Sciences,Shenyang,Liaoning 110161) |
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| Abstract: | Objective]The research aimed to study the effects of different phosphorus application amounts on the yield,profit and nutrient uptake of maize and economic P2O5 application amount.Method]The field experiments of different phosphorus application amounts were conducted in Haicheng City,Changtu County and Zhangwu County.Result]P application increased maize yield and profit by 3.2%-21.5% and 173-1 724 yuan/hm2 compared with no P application treatment,respectively.Nutirient uptake could be promoted by the application of phosphorus fertilizer.The yield increase of unit P application and recovery of P decreased with the increase of P application amount.Conclusion]P2O5 application amount of the highest yield in Haicheng,Changtu and Zhangwu was 89,116 and 129 kg/hm2,respectively,and economic P2O5 application amount was 77,98 and 100 kg/hm2,respectively. |
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| Keywords: | Maize Phosphorus Yield Profit Nutrient uptake |
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