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据国外报道,混播牧草的干草产量较单播可提高14—25%,国内许多研究也证明,混播牧草产草量比单播高,不仅可以增加牧草产量,提高牧草品质,而且还能改善土壤结构,增强土壤肥力,对于蓄水保土,减少风雨侵蚀,具有很大作用。为适应我省西山地区大面积人工草地建设中对混播牧草品种、组合以及栽培技术的需要,从1982年以来,我们进行了牧草混播的研究。一、试验地的自然条件与概况
According to foreign reports, mixed hay yield more hay than unicast can increase 14-25%, many domestic research also shows that mixed sowing grass yield higher than unicast, not only can increase pasture production, improve pasture quality, but also can improve the soil Structure, enhance soil fertility, for the storage of soil, reduce wind and rain erosion, has a great role. In order to meet the needs of the mixed-forage varieties, combinations and cultivation techniques in the construction of large-area artificial grasslands in the Xishan area of our province, we studied the mixed pasture production since 1982. First, the test of natural conditions and profiles