高垄覆膜滴灌全价营养液对次生盐碱地种植黄瓜的影响

Effects of high ridge,plastic mulching and drip irrigation with complete nutrient fluid on cucumber planted in secondary salinealkali soil

为研究高垄覆膜滴灌全价营养液栽培技术在利用次生盐碱地和防止次生盐渍化中的作用,以试验用菜园土和露地土为对照,次生盐碱土作处理,栽培黄瓜。试验结果表明,采用该项栽培技术后,与露地土栽培植株相比,盐碱土栽培黄瓜幼苗生长略受抑制,但此后植株生长健壮,产量未受影响,果实维生素C、可溶性糖和有机酸含量均略有提高。栽培结束后,盐碱土土壤EC值下降。

In order to study the effects of high ridge,plastic mulching and drip irrigation with complete nutrient fluid in using secondary saline-alkali soil and preventing secondary salinization,the cultural experiments with cucumber were carried out in secondary saline-alkali soil, garden soil and open soil. The results showed that by the cultural technique of high ridge, plastic mulching and drip irrigation with complete nutrient fluid,the cucumber plants in secondary saline-alkali soil were slightly inhibited only at seedling stage compared with those in open soil,but later grew sturdily. The fruit yield was not affected and the contents of vitamin C,soluble sugar and organic acid in the fruit were slightly improved, though all the parameters were inferior to those of plants cultured in garden soil. The experimental result indicated that the EC value of the secondary saline-alkali soil dropped, and the cultural technique could be used to improve the secondary saline-alkali soil.