黑龙江农业科学Issue(10)：36-38,3.
氮肥施用量对寒地水稻产量和品质的影响
Effect of Nitrogen Fertilizer Amount on Rice Yield and Quality in Cold Region
摘要
Abstract
In order to clear the optimum nitrogen fertilizer amount for early maturing rice varieties Longjing 27 , and get high and stable yield .The effects of different amount of nitrogen fertilizer on yield and quality for rice was studied in different growth stages by the plot experiment .The results showed that the effect of nitrogen fertilizer amount on tiller number per plant and plant height of rice had same trends ,with the increasing of ni-trogen fertilizer amount ,tiller number per plant and plant height of rice were significantly increased .The filled grain numbers per spike ,seed-set percentage and number of spike per square meter of the nitrogen fertilizer ap-plication treatment were higher than that without nitrogen fertilizer application .With the increasing of nitrogen fertilizer amount ,filled grain numbers per spike ,seed-set percentage and number of spike per square meter were increasing ,and 1 000-grain weight was reducing .The relationship formula between nitrogen fertilizer lev-els and yield was y=493 .11 +53 .747x-3 .591x2 .The nitrogen fertilizer amount was 112 .2 kg·hm-2 when the yield was the highest ,that was 10 413 kg·hm-2 .关键词
氮肥施用量/水稻/产量Key words
nitrogen fertilizer/rice/yield分类
农业科技引用本文复制引用
马文东..氮肥施用量对寒地水稻产量和品质的影响[J].黑龙江农业科学,2013,(10):36-38,3.基金项目
黑龙江省科技厅攻关资助项目 （）
