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1.培育壮苗 ①苗床准备。选择肥沃的菜园土作苗床。苗床与大田比例为1:5.5。翻耕、平整、碎细土,除净杂草,667平方米施过磷酸钙30公斤。②适时播种。湘西北地区9月上中旬播种,湘中地区9月中旬播种,湖南地区9月下旬播种。播种后用草木灰作盖籽肥,结合抗旱浇水,667平方米施稀薄人畜粪水2000公斤。③加强秧苗管理。2叶期间苗,3叶期定苗,每平方米苗床留苗120株左右。定苗后每667平方米苗床用5％烯效唑可湿性粉剂20克对水成浓度为0.03‰的药液喷雾,防高脚苗。播种后20天即3叶时每667平方米苗床追施尿素、钾肥各4公斤作提苗肥。苗期注意抗旱保苗,如遇干旱天气可灌厢沟水,或浇施稀薄粪水。要注意及时防治病虫害,干旱时要注意防治蚜虫,雨水多时要注意防治菜青虫和猿叶虫。
1. Nurturing seedlings ① seedbed preparation. Choose fertile garden soil for seedbed. Seedbed and field ratio of 1: 5.5. Tillage, formation, broken fine soil, in addition to net weeds, 667 square meters of calcium phosphate applied by 30 kg. ② timely sowing. The northwestern Hunan is sown in mid-September, the middle-sown in mid-Hunan and the sown in late September in Hunan. After sowing with straw as cover seed fertilizer, combined with drought watering, 667 square meters applied thin human and animal manure 2000 kg. ③ strengthen the seedling management. 2 leaf period seedlings, 3 leaf stage Dingmiao, per square meter seedbed stay seedlings 120 or so. After Dingmiao 667 square meters per square meter with 5% uniconazole WP 20 grams of water into a concentration of 0.03 ‰ liquid spray, anti-high seedlings. 20 days after sowing that 3 leaves every 667 square meters of seedbed topdressing urea, potassium 4 kg for Miaofei. Seedling pay attention to drought seedlings, in case of dry weather can fill Xiang ditches, or pouring thin manure. Pay attention to prevention and control of pests and diseases in time, should pay attention to the prevention and treatment of aphids when the drought, rain and rain should pay attention to cabbage and insect pest.