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从1984年开始,我们在辽宁省锦州地区义县进行了沙打旺牧草的引种试验和种植技术推广工作。四年来,共推广种植沙打旺226213亩,累计收草面积达450227亩,产青干草115800900公斤。平均亩产257.2公斤,是当地天然草地亩产干草量的4倍,草层平均高度达157厘米,是天然草地平均高度的5.4倍,四年累计获经济效益达2562.99万元。在推广种植沙打旺过程中,我们主要采取了以下五项技术管理措施。
Since 1984, we have conducted the introduction test and planting technology promotion of the sand forage in Yixian County, Jinzhou District, Liaoning Province. In the past four years, a total of 226213 mu of planted sowing land has been popularized, with a total area of 450,227 mu of harvested grass and 115,800,900 kg of green hay. The average yield per mu is 257.2 kilograms, which is 4 times of the hay yield of natural grassland in the region. The average grass height is 157 centimeters, which is 5.4 times of the average height of natural grassland. The economic benefit has reached 25.6299 million yuan in four years. In the process of popularizing planting and planting, we mainly adopted the following five technical management measures.