Integrated nutrient management induced changes in nutrient uptake, fruit yield and quality of Kinnow mandarin

MANISH BAKSHI; V K WALI; PARSHANT BAKSHI; AKASH SHARMA; DIVYA SHARMA; RAFIQ AHMAD SHAH

doi:10.56093/ijas.v87i3.68790

Authors

MANISH BAKSHI Sher-e-Kashmir University of Agricultural Science and Technology-Jammu, Faculty of Agriculture, Chatha, Jammu, J&K 180 009
V K WALI Sher-e-Kashmir University of Agricultural Science and Technology-Jammu, Faculty of Agriculture, Chatha, Jammu, J&K 180 009
PARSHANT BAKSHI Sher-e-Kashmir University of Agricultural Science and Technology-Jammu, Faculty of Agriculture, Chatha, Jammu, J&K 180 009
AKASH SHARMA Sher-e-Kashmir University of Agricultural Science and Technology-Jammu, Faculty of Agriculture, Chatha, Jammu, J&K 180 009
DIVYA SHARMA Sher-e-Kashmir University of Agricultural Science and Technology-Jammu, Faculty of Agriculture, Chatha, Jammu, J&K 180 009
RAFIQ AHMAD SHAH Sher-e-Kashmir University of Agricultural Science and Technology-Jammu, Faculty of Agriculture, Chatha, Jammu, J&K 180 009

https://doi.org/10.56093/ijas.v87i3.68790

Keywords:

Azotobacter, Integrated nutrient management, Kinnow, Leaf nutrients, Quality, Yield

Abstract

The present study on the integrated nutrient management in Kinnow mandarin involved application of inorganic fertilizers, vermicompost and Azotobacter under different combinations. The pooled data analysis indicated that highest concentration of leaf and fruit N (2.57 and 0.06%), Ca (4.31 and 0.033%) and Mg (0.46 and 0.024%) with the combined application of Azotobacter + 25% nitrogen as vermicompost and 75% nitrogen as urea. Maximum leaf and fruit P (0.19 and 0.025%) were recorded with the application of vermicompost (to supply 50% N) and urea (to supply 50% N) augmented with Azotobacter. While highest leaf and fruit K (1.56 and 0.092%) were recorded with full doze of nitrogen applied as vermicompost along with Azotobacter. Maximum Azotobacter counts (31.6 Ã— 106 cfu g soil), bacterial counts (28.9 Ã— 106 cfu g soil) and fungal counts (35.5 Ã— 105 cfu g soil) were recorded with the application of full doze of nitrogen through vermicompost alongwith Azotobacter. The results suggested that 25% nitrogen can be replaced through chemical fertilization along with vermicompost on N- equivalent basis plus Azotobacter inoculation.

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