Trends in Soil Test Phosphorus Dynamics Following Long-Term Application of Poultry Litter and Commercial Fertilizers.
Zhixuan Qin, Plant and Soil Science, University of Delaware, Newark, DE, Amy L. Shober, 531 S College Ave, University of Delaware, Newark, DE, US and Shawn Tingle, Plant and Soil Science, University of Delaware, Gerogetown, DE