Effect of Zinc, Iron and Manganese Levels on Quality, Micro and Macro Nutrients Content of Rice and Their Relationship with Yield

A field trial comprising three levels of zinc (Zn) 0, 5 and 10kg ha-1, three levels of iron (Fe) 0, 15 and 30kg ha-1 and three levels of manganese (Mn) 0, 5 and 10kg ha-1 was carried out during the rainy seasons of 200 8 and 2009 at Varanasi, to study their effects on macro and micro nutrients content, yields and quality of rice variety HUBR 2-1. The experiment was conducted in 3(3) partial confounding with two replications. Half doses of all the micronutrients were applied as basal and the rest half through foliar application at different intervals. Among the treatments, Zn at 10kg ha-1, iron at 15kg ha-1 and Mn at 5kg ha-1 recorded the maximum yield of rice. A similar trend was observed in all the quality parameters of rice. Individually Zn, Fe and Mn registered, respectively, 12.05, 8.60 and 4.46% more yield than the control.