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1.合理配制营养土 营养钵育苗时,根只能在钵内生长,所以要求营养土含有充足的、合理的营养成分。根据经验一般采用优质有机肥与肥沃园田土按一定比例配制,二者比例是5～7:5～3,并添加少量的N、P、K速效肥。而有的菜农随意加大N、P、K化肥或使用不腐熟的有机肥或不用有机肥,因而育苗时出现缺肥、烧苗等现象,加重病虫害的发生而不能育壮苗。
1. Reasonable preparation nutrition soil nutrition Bowl nursery, the root can only grow in the bowl, so nutritional soil contains adequate and reasonable nutrients. According to the experience of the general use of high-quality organic fertilizer and fertile garden soil according to a certain percentage of preparation, the ratio is 5 ~ 7: 5 ~ 3, and add a small amount of N, P, K fertilizer. However, some farmers randomly enlarge N, P and K fertilizers or use non-decomposing organic fertilizers or no organic fertilizers, which results in the phenomenon of lack of fertilizers and seedling fry when nurturing and aggravates the occurrence of pests and diseases without fertilizing seedlings.