黄潮土长期轮作施肥土壤有机质消长规律的研究  

Study on Regularity of Growth and Decline of Soil Organic Matter under Long-term Fertilization for Yellow Fluvo aquic Soil

作　　者：张爱君 张明普 

机构地区：[1]江苏省徐淮地区徐州农科所,徐州221121

出　　处：《安徽农业大学学报》2002年第1期60-63,共4页Journal of Anhui Agricultural University

基　　金：全国化肥网试验项目

摘　　要：淮北黄潮土 1 9年定位试验的结果表明 ,长期不施肥土壤有机质含量比试验前下降 1 .5 4g/kg,长期单施化肥可以基本维持土壤有机质水平 ,长期施用有机肥可显著提高土壤有机质含量 ;无肥和有机肥处理 ,土壤有机质随施肥年份呈指数函数的变化规律。土壤有机质的适宜平衡水平大致为 1 5 .0 g/kg。有机The locate experiment on Yellow fluvo aquic soil 19 years was conducted,the results showed that the content of soil organic matter decreased by 1 54 g·kg -1 with on fertilization,maintained the level of soil organic matter with application of chemical fertilizer,and increased obviously under organic manure application.The relationship between content of soil organic matter and fertilization years accorded with exponential regression under no fertilization and applying organic materials. The suitable balance level of soil organic matter was about 15 0 g·kg -1 .Coordination of organic and inorganic could raise the quantity of soil organic matter.

关 键 词：有机质 长期施肥 黄潮土 轮作 消化规律 

分 类 号：S153.621[农业科学—土壤学] S147.2[农业科学—农业基础科学]