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河南省有耕地1.0326亿亩,其中坡耕地约1800万亩,且多分布于浅山丘陵地区。此类地经过耕作,松动土层后,在暴雨季节往往造成严重的水土流失,影响产量。夏玉米生长恰逢暴雨季节,如何保护坡耕地永续利用,是一个亟待解决的问题。1985年,河南省鲁山县水土保持科学试验站有针对性地开展了麦田留茬套种夏玉米少耕法试验,经过4年实践,取得了令人满意的
There are 1.0326 billion mu of arable land in Henan Province, of which about 18 million mu of slope farmland are cultivated, and are mostly distributed in shallow mountainous areas. This type of land after tillage, loose soil, often in the heavy rainy season caused serious soil erosion, affecting the yield. Summer corn growth coincides with the rainy season, how to protect the sustainable use of slope farmland, is an urgent problem to be solved. In 1985, Lushan County, Henan Province Soil and Water Conservation Science Experimental Station targeted wheat stubble intercropping summer maize less tillage test, after 4 years of practice, and achieved satisfactory