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1.试验示范目的利用幼龄果树空行间的土地上茬春播红薯,下茬种植秋播越冬根茎菜,达到防风固沙,防止扬尘污染的目的。2.试验地点及面积安排在大兴区庞各庄镇丁村。示范面积为0.67公顷。果树地为2年生梨树,树种为早熟梨。株行距2.5米×5米。3.试验示范的实施3.1果树间作春红薯的
1. Experimental demonstration purposes The use of young fruit trees on the ground blank space between the spring sowing sweet potatoes, the next planting autumn wintering rhizome vegetables, to wind and sand, to prevent dust pollution purposes. 2. The test site and area are arranged in Dingcun Town, Panggezhuang Town, Daxing District. Demonstration area of 0.67 hectares. Fruit tree to 2-year-old pear tree, tree species for early maturing pears. Plant spacing 2.5 m × 5 m. 3. Experimental demonstration of the implementation of 3.1 fruit trees between the spring sweet potato