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种植牧草要想保证苗全苗壮，播前必须进行一系列种子处理。其主要方法是： 一、选种 首先要用不同型号的清选机进行清选，去掉不饱合籽粒、杂质、皮壳等。或用泥水、盐水及硫酸铵进行选种，以提高种子净度和发芽率。 二、晒种及变温处理 晒种时将种子摊在阳光下铺５～７ｃｍ（
In order to ensure the seedlings grow forage seedlings, sowing must be carried out before sowing a series of seeds. The main method is: First, the selection of the first to use different types of cleaning machines for clearance, remove the unsaturated grains, impurities, hulls and so on. Or mud, salt water and ammonium sulfate seed selection, in order to improve seed purity and germination rate. Second, sunburn and variable temperature treatment Sun seed spread in the sun shop 5 ~ 7cm (