Vol. 11, Special Issue 9 (2022)

Author(s):
Shivashenkaramurthy M, Shanjaya B Patil, Nayak GV, Rajakumar GR and Channabasappa KS

Abstract:
An experiment was conducted to study the effect of cultivars and organic nutrient management treatments on yield of sugarcane and liquid jaggery at Agriculture Research Station, Kumta, Uttara Kannada, University of Agricultural Sciences, Dharwad during 2018-19 and 2019-20. The experiment consisted three main plots (Cultivars) viz., C₁: SNK 635, C₂: Co 86032 and C₃: Konanakatte and seven sub plots (Seven nutrient management practices (NMPs) viz., N₁: Farm Yard Manure (FYM) (1/3rd) + Vermicompost (VC) (1/3^rd) + Biogas slurry (BGS) (1/3rd), N₂: FYM (1/3^rd) + VC (1/3^rd) + Biodigester filtrate (BDF) (1/3^rd), N₃: FYM (50%) + VC (50%), N₄: FYM (50%) + BGS (50%), N₅: FYM (50%) + BDF (50%), N₆: Recommended package of practices (RPP) and N₇: Farmer’s practice. The results indicated that the growth and yield parameters of sugarcane were significantly influenced by cultivars and nutrient management practices and their interactions in both plant and Ratoon cane. Among the cultivars, the cultivar SNK 635 recorded significantly higher plant hight, number of tillers, number of millable canes, cane diameter, single cane weight and cane yield than Konanakatte and Co 86032 in both plant and ratoon cane. The cultivar SNK 635 recorded significantly higher liquid jaggery yield of 17.03 t ha^-1 in plant and 15.38 tha-¹ in ratoon cane. Organic treatments recorded significantly higher cane and liquid jaggery yield than farmers practice but on par with RPP treatment. The interactions, N₆C₁ recorded significantly higher cane and liquid jaggery yield in both plant and ratoon crop and on par with N₁C₁, N2C1, N₃C1, N₄C₁ and N₅C₁.