Abstract:Numerous studies have investigated effects of long-term manure application on total phosphorus (P) and inorganic P (P i ), but few have evaluated soil organic P (P o ). Little is known about crop management effects on P o in soils with varying minerology. In this study, sequential fractionation was used to characterize specific P forms after 25 years of broiler litter (BL) or ammonium nitrate (Con) applications to an Alabama Hartsells soil. Crops (corn [Zea mays L.], soybean [Glycine Willd.], and corn or soybe… Show more
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