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地膜覆盖栽培技术在生产上具有明显的早熟增产优势。但在生产上仍普遍存在一些影响效益发挥的问题认真解决这些问题,可大幅度提高覆膜栽培效益: 问题之一:肥力不足,作物早衰。地膜覆盖栽培,是一种“土壤消耗性促进栽培”如果土壤肥力不足,作物往往易发生早衰,降低覆膜效益。造成脱肥早衰的主要原因有二:一是基肥用量不足,致
Plastic film mulching cultivation technology in production has obvious advantages of early maturity. However, there are still some common problems in production which affect the efficiency. To solve these problems conscientiously, the efficiency of plastic film cultivation can be greatly improved. One of the problems is: lack of fertility and premature aging of crops. Film mulching cultivation is a kind of “soil consumption promoting cultivation” If the soil fertility is insufficient, the crops are often prone to premature aging and reduce the benefit of film mulching. Premature fat loss caused by two main reasons: First, the amount of basal application, caused