摘要
通过裂区和正交设计的田间试验 ,研究了不同熟相类型小麦在不同群体密度、不同氮肥追施策略下的籽粒产量及产量构成 ,探讨了不同熟相类型小麦通过群体调节和氮肥追施实现高产的可能性。结果表明 ,群体密度和追氮方法均对不同熟相类型小麦的产量和产量构成产生显著影响 ,并且存在交互作用。黄熟型小麦获得高产的可能性较大 ,早衰大穗型小麦在适宜的栽培和气候条件下 ,也有可能获得高产。同时利用15N年示踪技术研究不同熟相下追肥方法对化肥氮去向。
A field trial was conducted to investigate the response of yield and yield composition of wheat with different maturing phases to density and top-dressing of nitrogen fertilizers. It was shown that density and top-dressing of nitrogen fertilizer contributed significantly to yield but dependent on the maturing phases of wheat. The density showed some interaction with the top dressing of nitrogen fertilizers. It was possible for yellow maturing wheat to obtain high yield, also for early-senescence type but only under proper management and suitable climatic condition. 15N tracing technique for determining the fate of fertilizer nitrogen for wheat with different maturing phases was also used.
出处
《核农学报》
CAS
CSCD
北大核心
2003年第6期466-471,共6页
Journal of Nuclear Agricultural Sciences
基金
北京市自然科学基金项目 ( 6992 0 2 4)
