Evaluation of the Effect of Different Sources of Organic and Mineral Silicate Fertilizers on the Concentration of Nutrients in Two Varieties of Rice

Proper nutrition program is one of the main ways to improve plant quality and has a significant role in increasing its performance.

To investigate the effect of the use of organic and mineral sources containing silicon on the concentration of silicon, nitrogen, phosphorus and potassium in rice plants (Oryza sativa L.), an experiment in the form of chopped plots with three replications in the fields of Dazmirkandeh village in the suburbs of Sari city in 2019. All the experimental steps were done in the laboratory of Sari University of Agricultural Sciences and Natural Resources. The main factor was two varieties of rice and the secondary factor was the type and amount of silicon sources in 11 levels of fertilizer treatment.

According the results, the simple effect of variety and different sources of silicon on the concentration of silicon was significant in the flag leaf, biomass and grain of rice. The average concentration of nutrients in aerial organs in Tarem Hashemi cultivar was more than Shiroudi cultivar and different sources of silicon could increase the concentration of silicon elements in flag leaves by 70%, biomass by 16% and seeds by 20%, and nitrogen by 12 and 55 respectively, and 50%, increase phosphorus by 100, 60 and 87% and finally increase potassium by 20, 15 and 50%.

In general, the use of all silicate treatments compared to the control treatment and basic fertilizer increased the concentration of silicon and other elements in the aerial parts of the plant.