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近年来,通过实践发现地膜复盖栽培技术在盐碱地上有明显的抑盐保苗增产效果。为研究地膜复盖后土壤盐分动态及其对农作物生长发育的影响,我们于1982~83年进行了试验和调查。试验和调查对象选择不同程
In recent years, through practice, it has been found that the plastic film mulching cultivation technique has obvious effect of reducing salt and increasing seedling yield on saline-alkali soil. In order to study the dynamic changes of soil salinity and its effects on the growth and development of crops after plastic film mulching, we conducted experiments and investigations from 1982 to 1983. Test and survey of different options