SOURCE - SINK RELATIONSHIP IN CORN AT THE COMBINATION APPLICATION OF CHEMICAL AND BIO PHOSPHORUS FERTILIZER

To study the effect of different levels of nitrogen in combination with bio-fertilizer phosphate-yield corn single cross 704 split plot experiment based on randomized complete block design with three replications, Islamic Azad University, Isfahan was implemented in 2012. Treatments consisted of four levels of nitrogen (50,100,150,200) kg ha as the main plots and three levels of bio-manure to ferti…