论文部分内容阅读
平定县属北方半干旱区,丘陵旱地多,地形复杂多样,气候条件差异大。长期以来,由于十年九旱,全县2.92万公顷的旱地粮食产量低而不稳,为此我们从1992年开始探索和研究与山旱地农业生产相适应的旱作农业技术,进行了旱地玉米生物覆盖栽培技术的试验与应用,收到较好效果,开辟了旱地玉
Pingding County is a semi-arid northern region, hilly drylands and more diverse and diverse topography, climate conditions vary greatly. For a long time, because of the ten droughts in nine years, the yield of 29,200 hectares of dry land in the county was low and unstable. Therefore, we began to explore and study dry farming techniques suitable for agricultural production in dry land areas in 1992, Experiments and application of biological cover cultivation techniques, received good results, opened up a dry jade