氮肥运筹对水稻产量及氮素利用率的影响OACSTPCD
Effects of Nitrogen Application on Yield Formation and Nitrogen Use Efficiency of Rice
以北方超级稻沈农265为材料,研究了氮肥运筹对水稻产量形成及氮素利用率的影响.结果表明:施纯氮210kg/hm2,且基蘖肥与穗粒肥比为6∶4时,由于单位面积有效穗数较其他处理提高2.4％～21.1％,致使产量提高3.3％～20.2％;同一基蘖肥与穗粒肥施用比例下,随施氮量的增加,沈农265的总吸氮量呈上升趋势,而氮素利用率有下降趋势;不同施氮量条件下,穗粒肥比例增加有利于总吸氮量和氮素利用率的提高;适宜施氮量和基蘖肥与穗粒肥比例,能为水稻整个生育…查看全部>>
The super rice Shennong 265 was used to study the effects of nitrogen application on yield formation and nitrogen use efficiency. The results showed that: when nitrogen application is 210 kg/hm3 and the ratio of basic tiller fertilizer and ear granular fertilizer was 6: 4, the effective panicle per unit area increased 2. 4% ～ 21. 1% compared with other treatment, and the yield increased by 3.3% ～ 20.2% ; total nitrogen showed an increasing tendency while nit…查看全部>>
卢铁钢;崔月峰;孙国才;王俊茹;王桂艳;王健
铁岭市农业科学院,辽宁铁岭112616铁岭市农业科学院,辽宁铁岭112616铁岭市农业科学院,辽宁铁岭112616铁岭市农业科学院,辽宁铁岭112616铁岭市农业科学院,辽宁铁岭112616铁岭市农业科学院,辽宁铁岭112616
农业科技
水稻施肥氮肥运筹产量氮素利用率
Rice Fertilization Nitrogen application Yield Nitrogen use efficiency
《作物研究》 2012 (4)
320-323,4
国家现代农业产业技术体系资助项目(CARS-01-37).
评论