论文部分内容阅读
采用室内恒温好气培养试验,研究不同C/N有机物料腐解过程中有机磷的矿化特征与进程。结果表明:新鲜粪肥类有机物料中磷以无机磷(P i)为主,秸秆类有机物料中磷以有机磷(Po)为主,有机物料中有机磷在培养的前30天矿化最快,之后趋于平缓,培养结束时,供试有机物料中磷均以无机磷为主,约占全磷的70~90%;不同有机物料有机磷的残留率在腐解前期差别很大,后期趋于一致,有机磷的矿化要先于有机氮;有机物料中磷的矿化速率大小与C/PO及有机磷含量的大小存在显著的相关关系。
The indoor constant temperature and good gas culture experiment was used to study the mineralization characteristics and process of organophosphorus during the decomposition of different C / N organic materials. The results showed that phosphorus was mainly inorganic phosphorus (P i) in fresh manure organic material and organic phosphorus (PAs) was the main organic material in straw. Organic phosphorus in organic material was the most mineralized in the first 30 days , And then tended to be gentle. At the end of cultivation, the phosphorus in organic materials was mainly inorganic phosphorus, accounting for 70-90% of total phosphorus. The residual organic phosphorus in different organic materials varied greatly in the early decomposition stage, In the same trend, the mineralization of organophosphorus should precede that of organic nitrogen. The mineralization rate of phosphorus in organic material has a significant correlation with the content of C / PO and organic phosphorus.