不同培肥条件下土壤腐殖质的变化研究

Reseach on Changes of Soil Humus in Different Conditions of Fertilization

通过长期定位试验 ,研究不同培肥条件下土壤腐殖质含量、性质和组成的变化 :提取胡敏酸 ,用酒精分级 ,研究胡敏酸各级分分布及其光学性质。结果表明 ,有机肥 ,尤其是厩肥有利于形成缩合度低、结构简单的年轻腐殖质 。

The changes of content and character and constitution of soil humus were studied in different condition of fertilization through Long term location test.HA was extracted and classified with alcohol and distribution and photic character of different HA were studied.The results shoused that organic fertilizer,especially mew fertilizer helps form light concentraling and simple structure and young humus of developing fertilizer was better.