摘要
通过对长期定点下不同施肥处理对磷素形态转化的研究,结果表明:在有机肥(OM)处理中,土壤无机磷主要向Fe-P、Al-P和Ca2-P转化,Fe-P的转化率最高,土壤有机磷向各组分有机磷均有所转化,转化率的大小顺序为:中活性有机磷>活性有机磷>高稳性有机磷>中稳性有机磷;在化肥(NP)处理中,土壤无机磷主要向Fe-P、O-P和Al-P转化,土壤中的有机磷主要向中稳性有机磷转化;在秸秆还田(TS)处理中,土壤无机磷主要向Ca2-P、Al-P、Fe-P转化,但它们的转化率均不高,土壤有机磷主要向中稳性有机磷、高稳性有机磷转化。
The transformation of various phosphorus forms was studied by long-term location fertilization, the result showed that inorganic phosphorus forms mainly transformed into Fe-P, Al-P and Ca2-P in the treatment of applying manure, the transformating rate of Fe-P was the highest,organic phosphorus in soil transformed into various phosphorus forms, the transformating rate of various phosphorus forms in soil in order of magnitude read as follows： MLOP〉LOP〉HROP〉MROP, in the treatment of applying fertilizer, the inorganic and organic phosphorus in soil transformed separately into Fe-P,O-P, AI-P and MROP, turning straw transform inorganic phosphorus into Ca2-P, Al-P, Fe-P, but their transformating rates weren＇t high, and could mainly transform organic phosphorus into MROP and HROP.
出处
《黑龙江八一农垦大学学报》
2006年第2期39-41,共3页
journal of heilongjiang bayi agricultural university
基金
黑龙江省教委项目(9541068)资助
关键词
长期施肥
白浆土
磷素形态
转化
long-term fertilization
Albic soil
phosphorus forms
transformation
