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Nitrogen Management in Calcareous Soils: Problems and Solutions
Nitrogen (N) is the most widely applied plant nutrient and is a key constituent of animal manures. Improvement in crop
yields and high economic returns have been made possible through supplementation of crops with organic ...
Study of Secondary Endosymbionts of Whiteflies Collected from Cotton Growing Districts of Punjab, Pakistan
Whitefly is the insect vector for cotton leaf curl disease. Like many arthropods, whitefly possess
different primary and secondary endosymbionts depending on ecological zone and biotype. These
endosymbionts play important ...