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冬玉米要获得高产,必须有较好的苗架,应抓好抽雄前的田间管理工作。一、间苗、定苗、施苗肥。当玉米长到3—4片展开叶时,及时间苗、定苗,缺苗的要补种壮苗(带泥移栽),保证有足够苗数。每亩用碳铵12—15公斤加水淋施,以满足幼苗生长所需养分。育苗移栽的苗肥在苗床施,一般用粪水,避免用过量的氮素化肥而造成徒长。二、在6—7叶期施攻秆肥。这次施肥要及时,量要足。每亩用碳铵20—25公斤、钾肥7—8公斤开沟施,并结合进行小培土。
Winter maize to get high yield, there must be better seedlings, should pay attention to the field before the tasselling management. First, Miao Miao, Dingmiao, Shi Miao. When the corn grows to 3-4 pieces of leaves, and the time seedlings, Dingmiao, lack of seedlings to replant seedlings (with mud transplanting), to ensure that there are enough seedlings. Ammonium bicarbonate with 12-15 kg per mu plus water shower facilities to meet the nutrient needs of seedling growth. Miao Miao transplanting Miaofei in seedbed facilities, the general use of manure, to avoid excessive use of nitrogen fertilizers to cause leggy. Second, in the 6-7 leaf stalks attack straw. The fertilization should be timely, the amount of foot. Ammonium bicarbonate with 20-25 kilograms per mu, 7-8 kilograms of potash ditching facilities, combined with a small peat soil.