超级稻不同施肥量小区对比试验

An experiment and research on various fertilization amounts plots of super rice

为了探索超级稻高产栽培技术的最佳化肥施肥量，在早稻田进行化肥不同施肥量小区对比试验，结果表明：每667m^2施纯氮7kg，产量最高，平均667m^2产720．6kg；每667m^2施纯氮13．6kg，产量最低，平均667m^2产625．0k，随施肥量的增加，产量随之递减。在前茬冬种番茄，采用秸秆还田的情况下，每667m^2施7～9kg纯氮量，效果最佳，产量最高。

In order to explore the best fertilization amount in super rice cultivation, a plot experiment of different fertilization amounts was conducted in paddy field for early rice, The result shows that it has the highest yield for applying N of 625 kg/mu（average yield is 720.6 kg/mu） and lowest yield for . applying N of 13.6 kg/mu（average yield is 625.0 kg/mu）, The yield is decreasing along with the increase of fertilization amount. In the condition of previous tomato cultivation and straw- returning - field, the applying of 7-9 kg N/mu can reach best effectiveness and highest yield,