永靖县干旱山区,十年九旱,土地瘠薄,“三料俱缺”,粮食产量低而不稳。根据这个特点,县人民政府和临夏州科委批准,在社队和有关同志的配合下,从1981年开始,在干旱山区搞了“绿肥品种栽培”、“草田轮作”等多项试验。研究培肥地力,用养地结合,养畜与肥田相结合,提高产量,降低成本,建设抗旱高产稳产农田的新途径和具体技术措施。现初步总结如下: 试验点设在永靖县西部山区杨塔公社杨塔大队。该大队地处海拔2300米左右的一条山梁 Yongjing County, arid mountainous areas, ten years of nine dry, infertile land, “lack of materials,” low and unstable grain output. According to this feature, the county people’s government and Linxia Prefecture Science and Technology Commission approved, with the support of the commune and comrades, from 1981 onwards, engaged in arid mountainous areas “green manure cultivation”, “grass field rotation” and many other experiments. Research fertility fertility, with the combination of raising and raising, livestock and fat fields combine to increase production and reduce costs, construction of drought-resistant high-yield and stable farmland of new ways and specific technical measures. The preliminary summary is as follows: The test point is located in Yangjing commune Yangtao Brigade in the western mountains of Yongjing County. The brigade is located at about 2300 meters above sea level a ridge