要查苗补苗,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,于下午或阴天带土移栽补苗。玉米3~4叶时及时间苗,5~6叶定苗,拔除弱苗、小苗、病苗、圆秆苗,选留大小一致的健苗。要及时中耕,防止草荒苗期应中耕除草2~3次,定苗前,中耕宜浅, To check the seedling fill seedlings, seedlings to prevent seedling off the whole ridge to ensure that the vaccine should be promptly check the seedlings, seedlings with premature germination of seedlings after replanting or 4 to 5 seedling age, in the afternoon or cloudy with soil transplanting seedlings. 3 to 4 leaves of corn and time seedlings, 5 to 6 leaves Dingmiao, removal of weak seedlings, seedlings, disease seedlings, round stem seedlings, choose the same size Jianjian. To promptly cultivate, to prevent grass shortage should be cultivated weeds 2 to 3 times, Dingmiao, cultivated shallow,