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在黄河中游水土流失严重的地区,土壤瘠薄,耕作粗放,粮食产量低而不稳定,同时三料(燃料、肥料、饲料)俱缺,在这些地区的一部分耕地实行草木樨与农作物轮作,具有显著的保持水土,改良土壤,增加农、牧业生产的作用。现将草木樨与农作物轮作的效益和几个技术问题分述如下。一、草木樨与农作物轮作的效益(一)增产粮食。根据绥德、天水水土保持科学试验站,山西省水土保持研究所的试验以及在群众中调查,采用草木樨与农作物轮作,四年一个轮期
In areas with serious soil erosion and soil erosion in the middle reaches of the Yellow River, soil is barren, extensive farming, low and unstable grain yield, lack of three materials (fuel, fertilizers and feed), and part of the cultivated land in these areas is dominated by vegetation and crop rotation with significant Keep soil and water, improve the soil, increase the role of agricultural and animal husbandry production. Now the benefits of crop rotation and crop rotation and several technical issues are described below. First, the efficiency of crop rotation and vegetation ((a) increase grain production. According to Suide, Tianshui Soil and Water Conservation Science Experimental Station, Shanxi Provincial Institute of Soil and Water Conservation test and survey among the masses, the use of vegetation and crop rotation, a period of four years