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一、前言关于蔬菜塑料薄膜地面复盖栽培的研究,在国外已有二、三十年的历史。日本从1948年开始就开展了这项研究工作。他们成立了日本塑料薄膜地面复盖栽培研究会,组织日本全国各地的农事试验场和大专院校专门从事该项研究,因此研究的广度和深度都是很高的。他们对复盖条件下环境因子变化的研究;对生长发育影响的研究;对土壤理
First, the preface On the vegetable plastic film ground cover cultivation, in foreign countries have two or three decades of history. Japan began its research work in 1948. They established Japan’s Plastic Film Ground Cover Cultivation Research Association and organized agricultural research centers and tertiary institutions throughout Japan to specialize in this research, so the breadth and depth of the research are high. Their research on the changes of environmental factors under the cover conditions, the research on the influence of growth and development,