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Seasonal Fluctuations in Phosphorus Loss by Leaching from a Grassland Soil

^a Dep. of Plant and Soil Sci., Univ. of Delaware, Newark, DE 19716-2170
^b Centre for Soil and Environmental Quality, P.O. Box 84, Lincoln Univ., Canterbury, New Zealand

View larger version (51K): [in a new window]   Fig. 1. Percentage of total P losses determined as dissolved reactive P (DRP), particulate reactive P (PRP), dissolved unreactive P (DUP), and particulate unreactive P (PUP) in leachate collected from different treatments during (a and c) nonirrigation (NIR) and (b and d) irrigation (IR) seasons (1999–2000, 2000–2001). Percentage means of P forms followed by different letters in the same bar are significantly different at P < 0.05).