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一、导言“肥料是植物的粮食”,随着我国畜牧业的迅速发展,草原建设的一个很重要内容,就是草原施肥。草原施肥是提高草原生产力行之有效的措施之一。合理施肥,既可以提高草原单位面积的牧草产量,又可以改变草原植被植物学成分和牧草营养成分,提高消化率和草原牧草的利用价值。近年来,化学工业的飞跃发展,化肥品种不断更新,尿素氮肥已大量而普遍使用。在人工草
I. Introduction “Fertilizer is the food of plants”. With the rapid development of animal husbandry in our country, a very important part of grassland construction is grassland fertilization. Grassland fertilization is one of the effective measures to improve grassland productivity. Rational fertilization can not only improve grassland yield per unit area, but also change the vegetation components of grassland and grass nutrition, improve digestibility and grassland utilization value. In recent years, the rapid development of chemical industry, constantly updated varieties of fertilizers, urea nitrogen fertilizer has been widely used. In artificial grass