秸秆还田对培肥土壤的作用与效益研究

随着忻州市玉米面积的不断扩大,玉米秸秆利用途径不断改变,除用做饲草外,一大部分被用做燃料,有时出现焚烧,这样会造成大气污染和资源浪费。针对这一情况,通过多年来秸秆还田试验示范推广、对土壤、水、肥、气、热等诸肥力因素进行分析研究,寻找到适合忻州市秸秆利用的新途径-秸秆还田,使土壤肥力作物产量提高,从而取得了较好的经济、社会、生态效益。

Analysis of Effect and Benefit of Returning Straw into Field on Soil Fertilization

As the corn planting area in Xinzhou has been extended continuously,the ways of the corn straw usage have been changed too.Besides being used as feed,a large amount of straw is used as fuel.Sometimes the straw is even incinerated so as to cause atmospheric pollution and resource waste.To solve this problem,the effect of returning straw into field on fertility factors had been analyzed and studied by experiment and demonstration for many years.These fertility factors included soil,water,fertilizer,air,heat,and so on.A new suitable approach of the usage of straw was found out by the experiment and demonstration in Xinzhou,which was returning straw into field.The soil fertilization and the crop yield were increased by this way.And the economic,social and ecological benefits were obtained.