本县位于晋西吕梁山南端,十年九旱,海拔405～1820米,年平均气温10℃,无霜期约172天,年平均降雨量575.9毫米,小麦生育期降雨约占全年降雨的41.6%。土壤瘠薄,含有机质0.58%,全氮 0.04%,速效磷0.5 ppm。历年全县种植小麦12万亩左右,产量长期处于低而不稳的局面。80年代以来,我们在旱地小麦高产栽培技术措施上,进行了一系列的试验、示范。一、蓄水保好墒旱地小麦保墒的要点:一要早 The county is located in the southern tip of Luliang Hill in western Shanxi Province. Nine years of drought prevail over the decade, with an elevation of 405-1820 meters. The annual average temperature is 10 ℃, the frost-free period is about 172 days, and the annual average rainfall is 575.9 mm. The rainfall in wheat growth period accounts for 41.6% . Soil infertility, containing 0.58% organic matter, total nitrogen 0.04%, available phosphorus 0.5 ppm. Over the county throughout the year about 12 acres of wheat planted, long-term output in the low and unstable situation. Since the 1980s, we conducted a series of experiments and demonstrations on high-yielding wheat cultivation techniques in drylands. First, keep water moisture Preservation wheat moisture point of dry land: one should be early