玉米受高温多雨天气影响,很容易出现缺苗断垄现象以及发生病虫害,因此,夏种玉米苗期管理要做好“五防”。一、查苗补苗防缺苗断垄为保证全苗,应及时查苗补苗,用早熟品种催芽后补种或在幼苗4～5片叶龄前,于下午 Corn is affected by hot and rainy weather, it is easy to appear lack of seedlings off the ridge phenomenon and the occurrence of pests and diseases, therefore, the summer seedling management should do a good job, “five anti”. First, check the seedling seedlings Vaccine to prevent seedlings off the ridge To ensure the whole seedlings, should promptly check the seedling fill seedlings, seedlings with premature germination of seedlings or seedlings 4 to 5 leaf age, in the afternoon