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Effect of Long Term Fertilizer and FYM Application on Soil Fertility of a Vertisol under Soybean-wheat Cropping System

  •   Devendra Kumar Inwati
  •   B. K. Dixit
  •   Risikesh Thakur
  •   B. S. Dwivedi
  •   Abhishek Sharma
  •   Vivek Singh

Journal of Experimental Agriculture International, Volume 44, Issue 10, Page 179-184
DOI: 10.9734/jeai/2022/v44i1030891
Published: 17 August 2022

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Abstract


The present studies were conducted under All India Coordinated Research Project on Long Term Fertilizer Experiment, which was commenced since, 1972. To assess the effect of 48 years (1972-73 to 2019-20) continuous application of inorganic fertilizers with or without organic manure i.e. FYM on soil fertility status of Vertisols under soybean-wheat cropping system. The results of the present study showed that the application of recommended dose of N, P and K (20:80:20 kg ha-1 to soybean and 120:80:40 kg ha-1 to wheat) with organic manure @ 5 t FYM ha-1 improved the status of available N, P and S but decline in available K. Further, the integrated use of fertilizers with organic manure enhanced the soil organic carbon contents (9.5 g kg-1) from its initial value (5.7 g ka-1). Conjoint use of FYM with 100% NPK substantially improved contribution towards sustaining the soil fertility. A declining trend (228 to 335 kg ha-1) from its initial value (370.0 kg ha-1) of available K status was also observed as a result of continuous application of fertilizer and manure; this indicates considerable mining of available K from the soil. However, the decline of K was of lower magnitude with 100% NPK + FYM and 150% NPK treatments indicating the need to raise the dose of K fertilizer application to meet the demand of crops. Further, soil available nutrients to be adversely affected due to the imbalanced use of nutrients viz., 100% NP or 100% N alone treatments. Thus, the balance use of fertilizers continuously either alone or in combination with organic manure is necessary for sustaining soil fertility and crop productivity.

Keywords:
  • Soybean-wheat cropping sequence
  • long-term fertilization
  • INM
  • physico-chemical properties
  • vertisols
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How to Cite

Inwati, D. K., Dixit, B. K., Thakur, R., Dwivedi, B. S., Sharma, A., & Singh, V. (2022). Effect of Long Term Fertilizer and FYM Application on Soil Fertility of a Vertisol under Soybean-wheat Cropping System. Journal of Experimental Agriculture International, 44(10), 179–184. https://doi.org/10.9734/jeai/2022/v44i1030891
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