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飞机播种牧草是利用现代化手段改良草场的重要措施。在农牧渔业部畜牧局的支持下,1983年龙江县用飞机播种沙打旺2万亩。播种前,沙打旺种子用丸衣化方法接种根瘤菌。现将沙打旺接种根瘤菌的效果简报如下。一、飞播区的自然条件飞播区位于黑龙江省龙江县南部,属北温带大陆性半湿润季风气候。最高温度36.9℃,最低温度-31.1℃。年降水量为430毫米,多集中于7、8、9三个月。年蒸发量1,550毫米,全年无霜期143天,日照2,690小时。土壤类型属黑钙土,土壤pH值8.35。植被类型为草甸草原类,主要植物为贝加尔针茅和羊草。
Plane seeding of forage is an important measure to improve the pasture with modern means. With the support of the Bureau of Animal Husbandry and Fisheries Ministry of Agriculture and Animal Husbandry, Longjiang County, sowing 20000 acres of sand by Wangjiang in 1983. Before sowing, seed of Astragalus sp. The effect of inoculation with Rhizobium is now as follows. First, the natural conditions of the airborne area The airborne area is located in southern Longjiang County, Heilongjiang Province, is a northern temperate continental semi-humid monsoon climate. The highest temperature of 36.9 ℃, the lowest temperature of -31.1 ℃. The annual rainfall of 430 mm, mostly concentrated in 7,8,9 three months. Annual evaporation of 1,550 mm, frost-free period 143 days, 2,690 hours of sunshine. Soil type is chernozem, soil pH 8.35. The vegetation type is meadow steppe, and the main plants are Stipa baicalensis and Leymus chinensis.