Studies on Application of NPK Fertilizers on Yield and Protein Content of Different Varieties of Rice (Oryza sativa L.)

Author: Sachidananda Muni

Download PDF

Abstract

The grains of different varieties of rice (Oryza sativa L.) namely Jogesh, Bandana, Parijat, MTU – 1001 and CR Dhan 201 were grown during the Kharif season of 2022 without any fertilizers and using NPK fertilizers @ 80 – 40 – 40 kgha-1 NPK and collected from the Regional Research and Technology Transfer Station (RRTTS), Odisha University of Agriculture and Technology (OUAT). The grain yield of the five rice varieties without any fertilizers varied between 9.7 qha-1 (CR Dhan 201) to 12.3 qha-1 (Bandana). But with fertilizers it varied between 10.4 qha-1 (CR Dhan 201) to 13.2 qha-1 (Bandana). Total N content of the rice varieties varied between 0.77% (CR Dhan 201) to 1.11% (Parijat) without fertilizers but resulted in an increase from 0.79% (CR Dhan 201) to 1.13% (Parijat) by the application of fertilizers. The crude protein (CP) content varied from 4.81% (CR Dhan 201) to 6.93% (Parijat) without fertilizers and from 4.93% (CR Dhan 201) to 7.06% (Parijat) with fertilizers. The non protein nitrogen (NPN) content without fertilizers showed a significant increase in Parijat and MTU – 1001 varieties as compared to CR Dhan 201 but recorded a significant change among the varieties with fertilizers. The true protein (TP) content varied significantly from 4.37% (CR Dhan 201) to 6.37% (Parijat) without fertilizers and between 4.43% (CR Dhan 201) to 6.43% (Parijat) with fertilizers. However the cv. MTU-1001 recorded a slight decrease by the application of fertilizers. It was observed that the application of NPK fertilizers has an overall beneficial impact on the grain yield and TP contents of those rice varieties and hence the amount of TP content per hectare can be increased

Keywords

Grain yield, Total Nitrogen, Crude Protein, True protein

Conclusion

It was observed from the study that by the application of NPK fertilizers there is an overall increase in grain yield and total N content of all the varieties. Also the CP values registered an increase with the fertilizers. Besides an overall increase of TP contents were observed in all the varieties except the cv. MTU 1001, in which it registered a marginal decrease. Hence it can be concluded that the application of NPK fertilizers in the prescribed dose results in an overall increase of yield as well as protein contents in different varieties of rice

References

-

How to cite this article

Sachidananda Muni (2023). Studies on Application of NPK Fertilizers on Yield and Protein Content of Different Varieties of Rice (Oryza sativa L.). Biological Forum – An International Journal, 15(1): 808-812