Study of Urea Embed Mesoporous Nano Silica on Yield and Yield Attributing Characters of Rice (Oryza sativa L.) Grown in Mollisols
Abstract
Rice (Oryza sativa L.) is a stable food for more than 60 per cent of world population. Asia is home of rice as more than two billion people are getting 60-70 per cent their energy requirement from rice and its derived products. Urea, as a model agrochemical molecule, was embed in the mesoporous nano silica (mNS) by simple immersion loading using aqueous solution and this formulation of nanofertilizer was employed in rice crop in pot experiments. Present research investigated effect of urea embed mNS on rice crop in pot experiment under polyhouse condition. Nine treatments consisted (T1:Control, T2:N30P60K40,T3:N60P60K40, T4:N90P60K40, T5:N120P60K40, T6:N30(mNS)P60K40, T7:N60(mNS)P60K40, T8:N90(mNS)P60K40 and T9:N120 (mNS)P60K40.) in three replications. In this study, the results revealed that the growth parameter, grain and straw yields as well as yield attributes (effective tillers, panicle length, grains per panicle and 1000-grain weight) were significantly affected by urea embed nano silica application. The highest grain and straw yields were recorded in treatment T9 giving 323.02 and 124.05 per cent more over control, due to exposure of urea embed mNS as compared to ordinary urea dose of chemical fertilizers. The sustained release of urea embedded mNS accurs 7-8 days after exposure which is extraordinarily slow as compared to ordinary urea. These results are preliminary but promising and open the doors to use nanomaterials as an efficient nanofertilizer.
