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Effect of Long-term Manuring and Fertilization on Passive pools of Carbon under Sorghum Wheat Sequence Cropping in Vertisols

Author: P.H. Rathod, S.M. Bhoyar, S.D. Jadhao, P.W. Deshmukh, G.S. Lahariya and A.B. Aage

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Abstract

The field study, "Appraisal of carbon dynamics and its sequestration under long-term sorghum-wheat cropping sequence in Vertisols", was conducted concurrently with the 32nd and 33rd cycles of the ongoing long-term fertilizer experiment (LTFE) on the sorghum-wheat sequence in 2019–20 and 2020–21 at the Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. With twelve treatments spread across four replications, the experiment was carried out using a randomized block design. The results of the current experiment show that the application of solitary FYM observed the highest passive pools of carbon (Humic carbon, Fulvic carbon, and Humin carbon), followed by 100% NPK+ FYM @ 5 t ha-1 and 75% NPK+ 25% N through FYM. With the amount of NPK fertilizer increased from 50% to 150%, the passive pools of carbon increased, showing the significance of their primary nutrients in accumulation and becoming, which ultimately led to higher root growth and overall plant development. Thus, it can be said that the application of FYM, either alone or in conjunction with NPK, had a positive impact on the stability of carbon and on the fertility, overall health, and crop productivity of the soil.

Keywords

Humic, Fulvic, Humin carbon, Yield, humification and Vertisols

Conclusion

From the present investigation, it can be concluded that, long term use of FYM alone or along with inorganic fertilizers enhanced the passive pools of carbon viz., humic acid, fulvic acid, and humin. Therefore, the balanced application of NPK fertilizers with FYM was the best choice for crop production of the wheat crop. Research on spectral characteristics, such as E4/E6 ratios, showed that humic acid has narrower ratios than fulvic acid.

References

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How to cite this article

P.H. Rathod, S.M. Bhoyar, S.D. Jadhao, P.W. Deshmukh, G.S. Lahariya and A.B. Aage (2023). Effect of Long-term Manuring and Fertilization on Passive pools of Carbon under Sorghum Wheat Sequence Cropping in Vertisols. Biological Forum – An International Journal, 15(5): 1194-1200.