蔬菜土肥大白菜施肥技术（１）施足底肥大白菜生长速度快，生长量大，需要施大量的有机肥作基肥。一般每亩应施优质腐熟有机肥４０００～５０００公斤，可以撒施，也可按行距开沟，把肥料集中施在沟中。有的地方由于换茬时正在雨季，劳力也紧张，施底肥困难。更应特别注意... Vegetable soil fertilization Chinese cabbage fertilization technology (1) application of sufficient fat Chinese cabbage growth speed, large growth, the need to apply a large amount of organic fertilizer as a base fertilizer. The general application of high-quality decomposed organic fertilizer per mu 4000 to 5000 kg, you can sprinkle, but also row spacing ditches, the fertilizer concentrated facilities in the ditch. In some places, due to the rainy season during the stubble, the labor is also tense and the application of base fertilizer is difficult. Should pay special attention to ...