| 施磷量对旱地小麦氮磷钾和干物质积累及产量的影响 |
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| 引用本文： | 王荣辉,王朝辉,李生秀,王西娜,李华.施磷量对旱地小麦氮磷钾和干物质积累及产量的影响[J].干旱地区农业研究,2011,29(1):115-121. |
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| 作者姓名： | 王荣辉 王朝辉 李生秀 王西娜 李华 |
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| 作者单位： | 西北农林科技大学资源环境学院;广东省农业科学院土壤肥料研究所; |
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| 基金项目： | 国家自然科学基金项目(30871596); 现代农业产业技术体系建设专项; 西北农林科技大学“创新团队建设计划” |
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| 摘 要： | 针对目前农业生产中存在的施肥增产效应下降问题,研究了磷肥用量对冬小麦养分、氮磷钾和干物质积累及产量的影响,以期为高产高效施肥提供依据.在黄土高原旱地进行田间试验,设不施磷,施磷P2O5 50kg/hm2(不足)、P2O5 100 kg/hm2(适量)和P2O5 150 kg/hm2(高量)4个水平,在不同生长期采样测定...
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| 关 键 词： | 施磷量 冬小麦 产量 水分 氮 磷 钾 |
Effects of P rates on N P K and dry matter accumulation and grain yield of winter wheat |
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| WANG Ronghui,WANG Zhaohui,LI Shengxiu,WANG Xin,LI Hua.Effects of P rates on N P K and dry matter accumulation and grain yield of winter wheat[J].Agricultural Research in the Arid Areas,2011,29(1):115-121. |
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| Authors: | WANG Ronghui WANG Zhaohui LI Shengxiu WANG Xin LI Hua |
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| Institution: | WANG Rong-hui1,2,WANG Zhao-hui1,LI Sheng-xiu1,WANG Xi-na1,LI Hua1(1.College of Resources and Environment,Northwest A & F University,Yangling,Shaanxi 712100,China,2.Soil and Fertilizer Research Institute,Guangdong Academy of Agri.Sciences,Guangzhou,Guangdong 510640,China) |
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| Abstract: | In order to explain the phenomenon of the decrease of crop yield-increasing effects caused by over fertilizer application commonly existing in present agricultural production in China,this paper focused on the effects of P rates on N,P,K and dry matter accumulation and grain yield of winter wheat.A field experiment was carried out with winter wheat as test crop and at P rates of 0,50(deficient),100(optimum) and 150(excessive) P2O5 kg/hm2.The aboveground part of the crop was sampled at different stages to es... |
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| Keywords: | P rates winter wheat yield water nitrogen phosphorus potassium |
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