WANG Qi.Effects of Different N-fertilization on Nitrogen Absorption，Utilization and Yield of Maize with Straw in the Field[J].HEILONGJIANG AGRICULTURAL SCIENCES,2010,(12):35-37.
秸秆还田下不同氮肥处理对玉米氮素吸收利用及产量的影响
- Title:
- Effects of Different N-fertilization on Nitrogen Absorption，Utilization and Yield of Maize with Straw in the Field
- 文章编号:
- 1002-2767（2010）12-0035-03
- Keywords:
- straw residues incorporation; N-fertilizer; maize
- 分类号:
- S513.062
- 文献标志码:
- A
- 摘要:
- 通过在秸秆还田条件下不同氮肥处理对玉米养分吸收及产量影响的研究，结果表明：秸秆还田条件下，施用氮肥可以明显提高产量，但并不是越多越好，当尿素超过300 kg·hm-2时，玉米产量不再随氮肥用量增加而增加；不同氮肥处理玉米总吸氮量与产量呈线性正相关；处理3的玉米氮利用效率和氮肥农学效率最高。
- Abstract:
- The effects of different N-fertilization on nitrogen uptake and yield of maize with straw in the field were studied.The results showed that application N fertilizer significantly elevated the yield of crop.However，urea application amount over 300 kg per hm2，yield of maize did not increase with the increasing of nitrogen fertilizer.The relationship between total N uptake and yield in different nitrogen treatment was positive linear related.Treatment 3 had the highest nitrogen use efficiency and nitrogen agronomical efficiency.
参考文献/References:
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备注/Memo
基金项目： 国家科技支撑计划资助项目（2007BAD89B05-11）；哈尔滨市科技创新人才研究专项资金资助项目（2009RFQYN089）