| 高产夏玉米土壤养分限制因子研究 |
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| 引用本文： | 王宜伦,苗玉红,韩燕来,李婉,谭金芳.高产夏玉米土壤养分限制因子研究[J].江西农业学报,2010,22(1):23-26. |
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| 作者姓名： | 王宜伦 苗玉红 韩燕来 李婉 谭金芳 |
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| 作者单位： | 河南农业大学,资源与环境学院、农业部玉米区域技术创新中心,河南,郑州,450002 |
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| 基金项目： | 中国-国际植物营养研究所(IPNI)合作项目(30200108);;河南省教育厅科技攻关项目“养分资源管理与测土施肥”(30200251) |
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| 摘 要： | 在大田条件下研究了9种元素肥料对夏玉米产量、土壤有效养分含量及氮磷钾养分积累量的影响,试验结果表明:高产玉米田各肥料配施增产效果明显,增产幅度为7.0%~19.2%,施用氮肥增产12.4%,施用磷肥增产5.0%,其他元素肥料增产幅度为-1.9%~4.8%。施用氮、磷和钾肥能够显著提高土壤速效养分含量和植株养分积累量,土壤速效氮、磷、钾养分含量分别提高了13.60、6.80和20.40 mg/L,植株氮磷钾养分积累量分别增加了19.18%、7.99%和13.68%。氮、磷和钾肥的当季回收率分别为12.28%、4.93%和17.56%。综合产量、土壤有效养分和养分积累等方面,氮是高产玉米的主要限制因子,其次为钾和磷。
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| 关 键 词： | 夏玉米 产量 土壤养分 限制因子 养分积累 |
Studies on Soil Nutrient Restrictive Factor for High-yielding Summer Maize |
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| WANG Yi-lun,MIAO Yu-hong,HAN Yan-lai,LI Wan,TAN Jin-fang.Studies on Soil Nutrient Restrictive Factor for High-yielding Summer Maize[J].Acta Agriculturae Jiangxi,2010,22(1):23-26. |
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| Authors: | WANG Yi-lun MIAO Yu-hong HAN Yan-lai LI Wan TAN Jin-fang |
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| Institution: | College of Resources and Environment/a>;Henan Agricultural University/a>;Regional Center for New Technology Creation of Corn/a>;Department of Agriculture/a>;Zhengzhou 450002/a>;China |
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| Abstract: | Field experiment was conducted to study the effects of nine kinds of element fertilizers on summer maize yield,soil nutrient content,N,P and K nutrient accumulation and their efficiency.The results showed that the combined application of different element fertilizers could increase maize yield significantly,and the increase rate was 7.0%~19.2%,nitrogen fertilizer enabled yield to increase 12.4%,phosphate fertilizer did 5.0%,and the others did-1.9%~4.8%.Application of nitrogen,phosphorus and potassium could ... |
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| Keywords: | Summer maize Yield Soil nutrient Limiting factor Nutrient accumulation |
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