近几年,养牛、马等牲畜的农户越来越多,我们发现一些农户,在玉米生产的中后期,常打玉米叶片喂牲畜。他们以为玉米棒已经长成,叶片多少无关紧要;而中部叶宽大肥厚、鲜嫩多汁,牲畜愿意吃,取用方便,省时省力,所以形成了打玉米叶喂牲畜的习惯。这种做法很不好。玉米产量的90%以上来自于叶片的光合作用。叶是形成产量和 In recent years, there are more and more farmers raising cattle and horses and other livestock. We find that some farmers often play corn leaves and feed livestock in the middle and later stages of corn production. They think that the corn cob has grown up, and the number of leaves is irrelevant; while the middle leaves are big, thick, tender and juicy, their livestock are willing to eat, they are convenient to take and use, saving time and labor. So they formed the habit of playing corn leaves to feed livestock. This approach is not good. More than 90% of the corn production comes from leaf photosynthesis. Leaves are formed yield and