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地膜栽培具有增温保墒、保肥改土、灭草防虫、减轻盐碱和促进农作物早熟、优质、高产等作用。为解决新疆杨种苗的不足,固原地区在1982年田洼试验林场育苗试验基础上,1983年又在5县14个场圃进行了144.73亩新疆杨地膜复盖扦插育苗试验,获得了较好效果。一、供试材料与方法中试试点供试种条多为平茬一年生条,生长健壮,无病虫害与机械损伤,木质化程度较高,粗度0.8厘米以上,用0.5％高锰酸
Film cultivation with warming soil moisture, fertilizer to soil, pest control insects, reduce salt and promote crop precocity, high quality, high yield and so on. In order to solve the shortage of poplar seedlings in Xinjiang, based on the experiment of seedling nurturing in Tianwa Experimental Forest Farm in 1982, 144.73 mu of Xinjiang poplar mulching and cuttage seedling cultivation was conducted in 1983 in 5 counties, and obtained good results effect. First, the test materials and methods Pilot pilot for the test planted mostly stubble annual growth, robust growth, no pests and diseases and mechanical damage, a higher degree of lignification, coarse 0.8 cm or more, with 0.5% permanganate