大白菜要增产,后期的田间管理不有忽视: 一、中耕与蹲苗。起苗后勤中耕、松土、防板结,促苗壮。包心期前十至十五天采取浇水遇雨及时松土中耕的方法进行蹲苗,使菜苗深扎根,长壮苗。中耕时不宜超过三厘米,防止伤根系。二、浇水与施肥。发棵后,进入结球期,要抓好肥水管理。因此期生长量占整个单株重量的百分之七十。结球初期亩追尿素十公斤;结球中期,亩追尿素 Chinese cabbage to increase production, the latter field management is not neglected: First, cultivating and squatting seedlings. Seedling logistics cultivator, loosening, anti-plate knot, and promote strong seedlings. Ten to fifteen days before the pack period, watering was carried out to cultivate the seedlings in a timely manner by cultivating the soil with rain and cultivating the soil. Cultivation should not exceed three centimeters, to prevent injury root system. Second, watering and fertilization. Fat trees, into the knot period, we must do a good job fertilizer and water management. Therefore, the amount of growth accounts for 70% of the weight of the entire plant. Mu catch the first ten kilograms of urea; mid-ball, mu chase urea