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改革开放以来,国家和地方农业科研单位的科技人员研究出许多的新品种、新材料、新技术,虽然推动着中国农业技术进步,但是每项新品种、新技术从出现到规模应用的推广进度不尽人意。如何将新品种、新技术及时推广到农业生产中去,是推进中国农业现代化的关键所在。渗水地膜是一种针对提高旱作物水分利用率的新型地膜,渗水地膜覆盖对土壤水分的双重作用在玉米生育的苗期表现的最为明显,为玉米的后期生长打下了良好的基础。整个覆盖期间渗水地膜覆盖的水分利用率最高,生育期内渗水地膜覆盖的玉米胁迫系数最小,水分有效利用率最高。
Since the reform and opening up, a large number of new varieties, new materials and new technologies have been researched by scientific and technological personnel of national and local agricultural research institutes. Although they promote the progress of agricultural technology in China, the promotion of each new variety and technology from appearance to application of scale Not satisfactory. How to promote new varieties and new technologies to agricultural production in a timely manner is the key to promoting China’s agricultural modernization. Water seepage membrane is a new type of plastic film designed to improve the water use efficiency of dry crops. The dual effect of water-permeable plastic film mulching on soil moisture is the most obvious in the seedling stage of maize growth and lays a good foundation for the later growth of maize. Water coverage during the entire coverage of water-mulching the highest water-use during the growth period of water-covered plastic film mulching minimum stress coefficient, the highest water use efficiency.