Vol. 12, Issue 10 (2023)

Author(s):
Sharanabasaava, Manjunatha Bhanuvally, SN Bhat, Ravi S, Mahadevaswamy and Ramesh G

Abstract:
A study was conducted to identify nutrient constraints in Jasmine growing soils. A total of 30 surface (0-20 cm) and 30 subsurface soil samples were collected from Jasmine growing area covering six villages of Huvina Hadagali taluk. Average soil available N was found low (238.34 kg ha^-1), available P₂O_5, K₂O and Sulphur was found medium (30.97, 258.81, 12.74 kg ha^-1, respectively) and available boron was sufficient (0.91 ppm). The mean soil pH was moderately alkaline (7.96), low soluble salt (0.27 dS m^-1) and low in organic carbon (5.00 g kg^-1). Population of bacterial, fungi and actinomycetes in jasmine growing soils were (40.70 CFU×10⁶ g^-1, 18.63 CFU×10⁴ g^-1 and 39.16 CFU×10³ g^-1, respectively). The correlation study showed that organic carbon, available P₂O₅, boron, bacteria, and actinomycetes (0.646**, 0.599**, 0.488**, 0.521**, and 0.516**, respectively) has significantly positive correlation with jasmine yield at one per cent level. The results showed that soil nutrient status of jasmine growing area of Huvina Hadagali taluk was found to be low to medium range. It is due to improper nutrient management practices like continuous use of chemical fertilizers and non-use of organics which results in poor soil fertility leading to low yield of jasmine.