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 fertilize 2 (0,100,200) grams per hectare in sub-plots were. And Single cross 704 maize varieties were used in this experiment. Results of data analysis showed that the levels of nitrogen fertilizer in combination with bio-fertilizer phosphorus on grain yield was significant However, the leaf area index at Tassel, remobilization of assimilates, the leaf phosphorus, resource constraints, soil pH levels were not significant. The results showed that the highest mean grain yield between 200 and 150 kg per hectare of nitrogen fertilizer on nitrogen fertilizer is concerned. The results showed that the highest mean grain yield between 150 and 200 kg per hectare of nitrogen fertilizer on nitrogen fertilizer is concerned. The comparison showed that the level of 200 grams per hectare for bio-fertilizer, bio fertilizers greatest impact (6571/30 kg ha) on grain yield. Comparison also showed interactions of biological nitrogen fertilizer, the highest seed yield of 200 kg per hectare of nitrogen fertilizer treatments with bio-fertilizer treatments were obtained from 200 g per hectare and lowest with 4460/60 kg per hectare nitrogen fertilizer treatment of 100 kg hectare biological treatment of zero g.