摘要
研究了施用有机肥对土壤磷形态的影响 ,分析了不同有机肥施用量下土壤各种磷组分变化。结果表明 ,施用有机肥能显著增加旱地红壤的速效磷含量。有机肥对土壤速效磷的影响随其 C/P比不同而不同。有机肥能提高土壤中等活性有机磷的含量。中等活性有机磷是土壤速效磷主要的有机磷源。施用有机肥 ,能增加土壤磷的供应和贮备 。
Effect of different rate of organic manure on phosphorus species is studied in arid red soil.The results show that the effect of organic manure on soil instant phosphorus is significant and varies with the ratio of C to P.Application of organic manure can increase the supply and storage of soil phosphorus,and enhance absorption to phosphorus and yield of crops.
出处
《土壤肥料》
CSCD
北大核心
2001年第5期19-22,共4页
Soils and Fertilizers
关键词
有机肥
旱地红壤
供磷效应
磷肥
施肥
organic manure
arid red soil
phosphorus-supplying effect
