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随着化肥的增加,草原施肥已成为培育草原的常规措施之一。在国外不少国家早已开始大面积应用于生产,尤其近十几年来增长的速度更快,不但面积增多,而且施肥量也增大。有关国外草地施肥的情况已有不少专题介绍。我国有关草原施肥的研究目前不多,过去曾有一些报告。近十年来草原施肥的研究逐渐增多,这些.研究包括施用有机肥、激素、菌肥和微量元素。很少施用化肥,而且都还处在试验阶段,没有大面积应用于生产。我们于1980年在吉林省长岭种马场对羊草草原进行了增施氮肥的试验研究,得到了一些初步结果。
With the increase of fertilizers, grassland fertilization has become one of the conventional measures to cultivate grasslands. In many foreign countries, large-scale applications have already begun to be applied to production. In particular, the growth rate has been faster in recent decades. Not only the area increases but also the amount of fertilizer applied. There have been many special presentations on fertilization in grassland abroad. There are not many studies on grassland fertilization in our country. There have been some reports in the past. Research on fertilization in prairies has been increasing over the past decade, and research has included the use of organic fertilizers, hormones, microbial fertilizers and trace elements. Few fertilizers, and are still in the pilot phase, there is no large area used in the production. We conducted a pilot study on the application of nitrogen fertilizer to Leymus chinensis steppe at Changling Stud Farm in Jilin Province in 1980 and obtained some preliminary results.