Nutrient Management in Potato (Solanum tuberosum L.) through Evaluation of the Fertility Status of Soils in Satpura Zone of Madhya Pradesh

Author: Bharti Choudhary, Rahul Dongre, Sant Kumar Sharma and Sandhya Bakode

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Abstract

Excessive or imbalanced fertilization has not only decreased nutrient use efficiency but also degraded arable land and posed a great threat to the environment. Potato productivity in India is static due to unbalanced use of nutrients and intensive cropping system. Nutrient use efficiency and yield can be increased by application of nutrients based on quantitative approaches. The QUEFTS basically works on the principle of NPK nutrient interactions and climate-adjusted yield potential of a region. Presented study was under taken to find out the quantitative evaluation of fertility of tropical soils (QUEFTS) model for the estimation of NPK requirements for different targeted yields of potato was conducted in 2018 to 2020. The experiment was undertaken in Randomized Block Design with three replications and three fertilizer level i.e. 75 %, 100% & 125% of recommended dose of NPK (RDF 120:100:100 kg/ha NPK) at Zonal Agriculture Research Station, Chhindwara with the target for achieving 30 t/ha yield target under QUEFTS model. On the basis of soil testing results, NPK as per QUEFT model (62.5:106.2:75 kg/ha NPK) for variety Kufri Pukhraj recorded economically maximum total yield (34.47 t/ha) along with net return Rs. 3,20,812/- and B:C ratio was recorded 3.46, plant emergence (93.25%), number of leaves/plant (130.5), Number of shoot/plant (10.5) are also recorded maximum among other nutrient levels. Whereas without QUEFT model 100% RDF of NPK (120:100:100 kg NPK/ha) recorded 32.67 t/ha yield with 3.17B:C ratio.

Keywords

NPK, QUEFT, model and Potato

Conclusion

As per QUEFT model, application of 62.5:106.2:75 kg/ha NPK for achieving 30 t/ha yield target with variety Kufri Pukhraj recorded economically highest yield (34.00 t/ha) along with net return of Rs. 3, 20,812/- and the BC ratio was recorded 3.46. At present, the soil test based recommendations are relatively on a stronger footing. This method not only indicates soil test based fertilizer dose but also the level of yield the farmer can hope to achieve if good agronomy is followed in raising the crop. It provides the scientific basis for balanced fertilization not only between the fertilizer nutrients themselves but also that with the soil available nutrients. When fertilizer availability is limited or the resources of the farmers are also’ limited, planning far moderate yield targets which are, at the same time, higher than the yield levels normally obtained by the farmer provides means, far saturating mare areas with the available fertilizers and ensuring increased total production also.

References

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How to cite this article

Bharti Choudhary, Rahul Dongre, Sant Kumar Sharma and Sandhya Bakode (2023). Nutrient Management in Potato (Solanum tuberosum L.) through Evaluation of the Fertility Status of Soils in Satpura Zone of Madhya Pradesh. Biological Forum – An International Journal, 15(9): 99-103.