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对锦州市塑料厂生产的“耐低温、防老化、无滴防尘膜(简称“无滴膜”,下同)与普通膜”应用在保护地大棚生产上的气象效应进行对比鉴定,结果表明,“无滴膜”增温效果明显(气温、地温);光照度增强,可见光透过率提高了,红外光透过率降低,延长膜的使用寿命;植株生长加快(干物重,茎粗等);产量提高了23％,产值增加了36％。一、试验基本情况试验地点在锦州市气象科学研究所基地和北郊蔬菜繁种场。大棚东西走向,跨度为10米棚顶最高处2.4米,钢
The comparison of the meteorological effects of “low temperature resistance, anti-aging, non-drip dust-proof film (referred to as” drip-free film “, the same below) and ordinary film” applied in the production of greenhouses in Jinzhou City shows that , “No drip film” obvious warming effect (temperature, ground temperature); light intensity increased, the visible light transmittance increased, the infrared light transmittance decreased, extending the life of the film; plant growth accelerated (dry weight, stem diameter, etc.) ; Output increased by 23%, output increased by 36%. First, the basic situation of the pilot test sites in Jinzhou Institute of Meteorology and the northern suburbs of vegetable breeding field. Greenhouse east-west, spanning 10 meters ceiling 2.4 meters high, steel