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一夏季好积肥,青草多腐烂快华北各省农村,适宜在夏季进行积肥,因为,第一、全年雨量大部集中在夏季,雨量初期少末期多,极适合于堆肥制造;第二、夏季青草滋生最多,是积肥材料最丰富的一个季节,同时华北主要作物小麦,也正在这个时期内收获,麦秸麦根都可用来沤粪;第三、夏播和秋播作物在华北农村中是缺乏肥料最严重的时期,一般情况,夏播或秋播作物很少上粪,甚至完全不上粪,因此对于单位面积增产,缺乏保证;第四、夏季气温高湿度足,害虫病菌易于繁殖,尤以杂
First, the annual rainfall is mostly concentrated in the summer, the early rainfall less end of the period, very suitable for compost manufacturing; second, the summer grass Breeding most, is the most abundant season of fertilizer materials, while the main crop of North China, wheat is also being harvested during this period, wheat straw can be used for shucked manure; third, summer sowing and autumn sowing crops in rural areas in North China is the lack of fertilizer In the most serious period, the general situation is that summer or autumn seeding crops seldom on the feces, or even completely on the manure, therefore, there is no guarantee for the increase of yield per unit area. Fourthly, the temperature and humidity in summer are sufficient and the pests and bacteria are easy to multiply, especially miscellaneous