中文摘要：

以湖北省农业科学院近年选育的两个杂交中稻品种培两优986和培两优3076为对象，探讨了不同施氮水平对其产量性状的影响。结果表明，为获得最高产量，培两优3076应在主攻单株有效穗数的前ST增加单穗实粒数．而培两优986应兼顾单株有效穗数和千粒重的增加。

英文摘要：

This research studied the effect of nitrogen on the yield traits of hybrid rice Peiliangyou 3076 and Peiliangyou 986 bred by the Food Crops Institute,Hubei Academy of Agricultural Sciences. The results showed that to get higher yield, plump grains per spike should be increased by improving effective number of spikes unit area for Peiliangyou 3076, whereas effective number of spikes per unit area and the weight of seeds should be increased for Peiliangyou 986.