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去年,我们在石象大队进行了塑膜地面覆盖栽培西瓜试验,105亩试验田分别设在4个生产队,每块试验田都设有对照。瓜田土壤为壤土,近10年内没有种过西瓜。基肥亩施60担农家肥,播前每亩沟施羊粪30担,过磷酸钙50斤。品种为北京早花。播前浸种催芽。4月15—24日播种,播深2厘米。采用太原产塑料薄膜,厚0.02毫米,本色半透明。播后按畦长将塑膜裁成1.5尺宽,覆盖于播种沟上,一定要拉紧铺平,四周用砂土埋实。瓜苗出土后,
Last year, we conducted plastic film ground-covering cultivation of watermelon test at the Stone Elephant Brigade. The 105-mu experimental farm was set up in 4 production teams, each with a control plot. Melon soil is loam soil, watermelon has not been planted in the past 10 years. Basal fertilizer Mushi 60 bear farmer fat, before planting sow per hectare sheep dung 30 Tam, superphosphate 50 pounds. Varieties for Beijing early flowers. Seed soaking before germination. April 15-24 sowing, sowing 2 cm deep. Taiyuan produced plastic film, 0.02 mm thick, translucent character. After sowing, the plastic film will be cut into 1.5-foot-wide and covered with seeding ditch. It must be tightened flatly and surrounded by sand and soil. After melon seed is unearthed,