Relationship Between Phosphorus Fractions in Paddy Soil and Phosphorus Release to Runoff Amended with Manure

This paper presents a study of the relationship between phosphorus fractions and phosphorus release in the presence of manure. Dynamic changes in the characteristics of total phosphorus in surface water are simulated by waterlogged incubation. The study was carried out by comparing sterilized and non‐sterilized treatments to analyze the effect of manure on the dynamics of phosphorus (P) release from soil. Experimental results show that manure application in paddy soil can significantly increase the content of phosphorus fractions (p