Most of the Pakistan soils ( 90 %) are deficient in available P and the native P supply cannot cope with P mining due to continuous cropping where as the over fertilization of P posses direct threat to environment. Soils have different P adsorption capacities, which are rarely taken into account while applying P fertilizers. This book emphasizes to calculate the site as well as crop specific phosphorus needs for fodder production because "The more fodder, the more flesh; the more flesh, the more manure; the more manure, the more grain"
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