广西塑料大棚基质栽培次生盐渍化的发生与对策探讨

随着塑料大棚栽培面积的逐年增长和基质栽培年代的推移,导致次生盐渍化日趋严重,妨碍了作物生长,使产量降低。预防塑料大棚基质栽培次生盐渍化的发生及其危害,已成为塑料温室大棚基质栽培普遍存在的技术难题。简述了塑料温室大棚基质栽培的发展历史,对次生盐渍化发生原因进行了分析,有针对性地提出了合理轮作、科学施肥、淹水排盐、调节基质酸碱度和更换基质等对策,探讨了塑料温室大棚基质栽培次生盐渍化的防治途径和措施。

The Reasons and Strategies of Secondary Salinization with Substrates Cultivation in Plastic Greenhouse in Guanxi

Because of the plastic greenhouse cultivation area increasing, and the substrates are used too long, serious secondary salinization arise and crop growing is obstructed, reduce the yields. Introduced the development history of the suhstrate used in plastic greenhouse,analyzed the reasons of the secondary salinization, and tryed to explore controlling tecnologies of secondary salinization in the plastic greenhouse with substrate cultivation.