论文部分内容阅读
1.有机肥需腐熟的原因未腐熟的有机肥料施入土壤中,有四大危害:(1)肥效差分解缓慢,不能及时满足植株生长发育的需要;。(2)传播病菌、虫卵不断繁殖的病原、虫源的在温室造成再循环危害,引发植株发生多种病虫害,导致高成本投入农药、人力等资源,降低产品的商品性。(3)滋生杂草与温室植物争水争肥。
1. Organic fertilizer need to be decomposed due to the maturity of organic fertilizer applied to the soil, there are four hazards: (1) slow decomposition of fertilizer efficiency can not be timely to meet the needs of plant growth and development. (2) Pathogen and insect propagation that propagate germs and insects cause recirculation hazards in greenhouses and lead to plant diseases and insect pests. As a result, high-cost inputs such as pesticides and manpower reduce the product’s commerciality. (3) breeding of weeds and greenhouse plants fight water and fertilizer.