磁处理对土壤磷有效性的影响

Effect of Magnetic Treatment on P Availability

采用不同磁场强度,对磁处理施肥棕壤和保护地土壤磷释放量进行了初步研究,同时测定了磁处理施肥棕壤有效磷及其无机磷各组分含量变化。结果表明:磁场处理能够提高施肥棕壤、保护地土壤水溶性磷含量。磁处理施肥棕壤的有效磷含量高于对照,其中Ca8-P、Al-P、Ca2-P含量比未经磁处理高,而其O-P含量、无机磷总量却是磁处理的较低;磁处理的和未经磁处理的棕壤对Ca10-P含量几乎没有影响。

Effects of magnetic treatment fertilizer application in brown soil and trame area soil on P release were preliminarily studied. Simultaneously variations of magnetic treatment fertilizer application in brown soil on available-P contents and inorganic P fractions and their contents were determined. The results showed that magnetic treatment could increase water-soluble-P contents in fertilizer application in brown soil and frame area soil. Magnetic treatment raised available-P, Ca2-P, Ca8-P,Al-P contents, decreased O-P and total inorganic P, but no varied Ca10-P contents brown soil were found.