大棚甘蓝锯末基质育苗法一、育苗基质１锯末一定要细碎过筛，除木片。２要混入腐熟的有机肥，严禁生粪进入。据末：有机肥＝３：１。每１０００平方米面积加５０公斤硝铵、５０公斤过磷酸钙、２５公斤氯化钾或相当Ｎ、Ｐ、Ｋ含量的其它无机肥，以便合理利用肥效，充分... Greenhouse cabbage sawdust substrate nursery method First, nursery substrate 1  sawdust must be finely sieved, except wood. 2  to be mixed with maturity of organic fertilizer, no access to raw manure. According to the end: organic fertilizer = 3: 1. Add 50 kilograms of ammonium nitrate, 50 kilograms of superphosphate, 25 kilograms of potassium chloride or other inorganic fertilizers equivalent to N, P, K per 1000 square meters of area so as to make rational use of the fertilizer ...