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自1981年12月在武汉召开的中日不织布技术交流会议后,在全国十个试点对从日本引进的新型覆盖材料——长纤维不织布(丰收布)进行了性能试验。并于1983年6月24～26日在哈尔滨市召开了全国第一次“不织布”试验经验交流会。根据各试点试验结果认为:(1)采用从日本引进的长纤维不织布做温室或大棚的二层幕,具有一定的保温性能,可以提高室(棚)内的气温和地温。据湖北省农科院测定,温室内幕挂“不织布”的温度要比无复盖物的温度提高2～6℃。中国农业工程研究设计院等四单位用“不织布”做大棚内的二道幕,棚内温度比对照棚提高1～3℃。5厘米土温最高增值达3.5℃。
Since December, 1981, a Sino-Japanese non-woven technology exchange meeting was held in Wuhan, performance tests were conducted on 10 new long-covering non-woven fabrics (bales collected from Japan) introduced from Japan at ten pilot sites across the country. And in June 1983 24 to 26 in Harbin held the first “non-woven” experimental experience exchange. According to the pilot test results, it is considered that: (1) The long-fiber non-woven fabric introduced from Japan is used to make the second-floor curtain in a greenhouse or a greenhouse and has a certain thermal insulation property so as to increase the temperature and the ground temperature in the room (shed). According to the Hubei Provincial Academy of Agricultural Sciences determined that the temperature inside the greenhouse linked to “non-woven” temperature than the non-covered material increased by 2 ~ 6 ℃. China Agricultural Engineering Research and Design Institute and other four units with “non-woven” to make the second curtain in the greenhouse, greenhouse temperature increased by 1 ~ 3 ℃ than the control studio. 5 cm soil temperature highest value reached 3.5 ℃.