Trends in Fertilizer Nutrients (N, P2O5 and K2O) Consumption in India

Author: D. Srinivasa Chary, K. Supriya, T. Anjaiah, A. Meena and M. Ramesh

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Abstract

The growth and yields of crops depend on the availability of the necessary amounts of the fertilizer components nitrogen (N), phosphorus (P2O5), and potassium (K2O). Better yields and sustainability of the environment are achieved by balanced fertilizing. Application of fertilizers in accordance with crop needs will increase crop production, but excessive fertilizer use will have a negative impact. The current study examined trends in the consumption of fertilizer nutrients. The secondary data on consumption of fertilizer nutrients (nitrogen, phosphorus and potassium) was collected for 72 years from 1950-1951 to 2021-2022. Different linear and non linear growth models were fitted to the data and examined the consumption pattern. Best fitted model was selected based on the highest AdjR2, lowest MAPE, RMSE and Theil’s U-Statistic. The consumption of nitrogen, phosphorus and total fertilizers was best fitted with the cubic model, where as the potassium consumption was best fitted the power model. The projection for four years from 2022-23 to 2025-26 was made for consumption of fertilizer nutrients. The linear and compound growth rates for the fertilizer nutrients consumption were calculated. The consumption of nitrogen, phosphorus, potassium and total fertilizer nutrients were recorded the linear growth rate of 4.155%, 4.397%, 4.188% and 4.219% and compound growth rate of 8.372%, 9.900%, 8.877% and 8.714% respectively.

Keywords

Fertilizer consumption, growth model, R2, adjusted R2, RMSE, MAPE, Theil’s U-Statistic, trends, linear growth rate and compound growth rate

Conclusion

The present study revealed that the consumption of all the fertilizer nutrients (nitrogen, phosphorus, potassium and total fertilizers) is showing increasing trend with a positive growth rates. These results are in accordance with the results of Singh and Jai (2018) and the projection made by Borkar (1982) up to 2030. The best fitted models for nitrogen, phosphorus, potassium and total fertilizer nutrients consumption were estimated the consumption at 20922.96, 8805.32, 3296.86 and 32642.37 metric tons respectively by 2025-26. Consumption of the fertilizer nutrients nitrogen, phosphorus, potassium and total fertilizer have recorded positive linear growth rates of 4.155%, 4.397%, 4.188% and 4.219% respectively and compound growth rates of 8.372% 9.900%, 8.877% and 8.714% respectively. The usage of fertilizer nutrients as per soil requirements enhances the productivity, whereas the excessive usage of fertilizers will lead to the negative results (Avinash et al., 2022). The technologies like variable rate of fertilizer application can be utilized for the optimum usage of fertilizers for the sustainable agriculture.

References

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How to cite this article

D. Srinivasa Chary, K. Supriya, T. Anjaiah, A. Meena and M. Ramesh (2023). Trends in Fertilizer Nutrients (N, P2O5 and K2O) Consumption in India. Biological Forum – An International Journal, 15(6): 690-696.