摘要
研究了氮肥运筹方式对早稻干物质积累和产量的影响。结果表明:早稻产量和干物质积累量均随氮追施量的合理提高而增加,但后期施氮比例过高不利于产量形成和干物质积累;氮肥运筹以4∶3∶3(基肥∶分蘖肥∶穗肥)较为合理。
The application types of nitrogen fertilizer impacting the dry material accumulation and yielding production of early season rice were reported. The results showed that proper application of suitable amount of nitrogen fertilizer can increase dry matter accumulation and yield. But too much nitrogen application would not suitable for dry matter accumulation and yield. The proper type of application could be 4：3：3 of basic application ： tiller stage application ： heading stage application.
出处
《河北农业科学》
2007年第3期14-14,20,共2页
Journal of Hebei Agricultural Sciences
关键词
早稻
氮肥运筹
产量构成因素
干物质积累
Early season rice
Nitrogen application types
Yielding components
Dry matter accumulation
