| 缓/控释氮肥对晚收夏玉米产量及氮肥效率的影响 |
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| 引用本文： | 王宜伦,常建智,张守林,张国合,李潮海,谭金芳.缓/控释氮肥对晚收夏玉米产量及氮肥效率的影响[J].西北农业学报,2011,20(4):58-61. |
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| 作者姓名： | 王宜伦 常建智 张守林 张国合 李潮海 谭金芳 |
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| 作者单位： | 1. 河南农业大学,农业部玉米区域技术创新中心,郑州450002
2. 河南省鹤壁市农业科学院,河南鹤壁,456284 |
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| 基金项目： | 中国-国际植物营养研究所(IPNI)合作项目，国家现代玉米产业技术体系建设专项 |
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| 摘 要： | 采用田间试验研究缓/控释氮肥对晚收夏玉米产量、氮素吸收积累和氮肥效率的影响.结果表明,夏玉米施用缓/控释氮肥较习惯施氮籽粒产量在习惯收获和晚收条件下分别增加2.90%和4.88%,蛋白产量分别增加7.07%和4.41%,氮素积累量分别增加5.51%和4.18%;氮肥利用率提高3.78%和2.95%,氮肥农学效率提高0....
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| 关 键 词： | 夏玉米 缓/控释氮肥 产量 晚收 氮积累量 氮肥效率 |
Effect of Slow/Controlled Release N Fertilizer on Yield and N Fertilizer Efficiency of Summer Maize in Later Harvest Time |
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| WANG Yilun,CHANG Jianzhi,ZHANG Shoulin,ZHANG Guohe,LI Chaohai and TAN Jinfang.Effect of Slow/Controlled Release N Fertilizer on Yield and N Fertilizer Efficiency of Summer Maize in Later Harvest Time[J].Acta Agriculturae Boreali-occidentalis Sinica,2011,20(4):58-61. |
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| Authors: | WANG Yilun CHANG Jianzhi ZHANG Shoulin ZHANG Guohe LI Chaohai and TAN Jinfang |
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| Institution: | WANG Yilun1,CHANG Jianzhi2,ZHANG Shoulin2,ZHANG Guohe2,LI Chaohai1 and TAN Jinfang1(1.Henan Agricultural University,Regional Center for New Technology Creation of Corn of Department of Agriculture,Zhengzhou 450002,China,2.Henan Hebi Academy of Agricultural Science,Hebi Henan 456284,China) |
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| Abstract: | Field experiment was carried out to study the effect of slow/controlled release N fertilizer(SRNF) on yield and N accumulation and N fertilizer utilization efficiency of summer maize in later harvest time.The results showed that compared with accustomed nitrogen application,SRNF could respectively increase grain yield by 2.90% and 4.88%,protein yield by 7.07% and 4.41%,N accumulation by 5.51% and 4.18%,apparent N recovery by 3.78% and 2.95%,N agronomic efficiency by 0.97 and 1.69 kg·kg-1 in accustomed harvest time and later harvest time.Compared with accustomed harvest,later harvest improved grain yield 2.12%-6.42%,protein yield 1.11%-7.68%,N accumulation 1.10%-3.18% and N agronomic efficiency 0.82-1.55 kg·kg-1.Applying SRNF was beneficial to the supply of soil N and absorption of plant N,fertilizer single basal application in seeding stage of summer maize,increased yield and N fertilizer efficiency,realized the aim of simplify,high yield and high efficiency fertilization. |
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| Keywords: | Summer maize Slow/controlled release N fertilizer Yield Late harvest time N accumulation N fertilizer efficiency |
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