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"

Agricultural biostimulants (ABs) include diverse formulations of compounds, substances and other products, such as microorganisms, trace elements, enzymes, plant growth regulators (PGRs) and macroalgal extracts that are applied to plants or soils to regulate and enhance the crop's physiological processes, thus making them more efficient. Humic acid (HA) has been reported a promising natural resource showing persistent effects on plant growth promotion, plant nutrient uptake and soil nutrient status. This work emphasize on the effect of lignite-derived HA on the growth and nutrient...

Heavy metals enter into the food chain via anthropogenic and natural sources and are persistent, ubiquitous and non-biodegradable with long biological half- lives. They can enter into the birds through the food chain and are accumulated in various body organs/tissues, maternally transferred to their eggs. Heavy metals such as Fe, Cu, Cr, and Zn are essential for metabolic activities, but become toxic at higher concentrations and can cause teratogenic, mutagenic and carcinogenic effects in biological organisms. The book emphasis on the critical monitoring of heavy metals in poultry eggs.