我们公社三道大队第一生产队,根据几年生产实践和试验结果认为,冬小麦追肥应“前重后轻”,即在小麦返青时追施大头肥。这样,冬小麦返青快,麦苗粗壮,成穗率高,穗大粒多,大穗百分率高。而晚追肥的,表现穗小粒少,上部叶大,下部秆细,往 Our commune brigade three production team, according to several years of production practice and test results that the winter wheat top dressing should be “before the heavy light”, that is, the top-dressing fertilizer in the wheat back to green. In this way, winter wheat quickly rejuvenate, barley stout, into a high rate of spike large grain, large percentage of large ears. The late top dressing, the performance of small spikelets, the upper leaf, the lower stem fine, toward