Vol. 10, Issue 12 (2021)

Author(s):
TS Amrutha, HK Veeranna, BM Dushyantha Kumar, O Kumar and BC Dhananjaya

Abstract:
A Field experiment was conducted at Agricultural Research Station, Kathalagere during kharif season of 2020 to study the performance of paddy cultivars under different farming types in irrigated situation of Bhadra command area. Experiment was laid out in split-plot design with four farming types (conventional, organic, natural farming and absolute control) in main plots and four paddy cultivars (Chinnaponni, Mysore mallige, RNR-15048 and KRH-4) in subplots comprising 16 treatment combinations replicated thrice. Among the different farming types, conventional farming recorded significantly higher growth attributing characters viz., plant height (94.57 cm), number of tillers hill^-1 (31.13), leaf area index (3.02), dry matter accumulation hill^-1 (87.50 g) and yield attributes like number of productive tillers hill^-1 (28.51), number of panicles hill^-1 (27.31), number of filled grains panicle^-1 (216.50), test weight (20.04 g), grain yield (5915 kg ha^-1) and straw yield (7931 kg ha^-1) as compared to organic, natural farming and absolute control. In case of paddy cultivars, the growth characters like plant height (102.20 cm), number of tillers hill^-1 (29.94), leaf area index (3.11) dry matter accumulation hill^-1 (87.25) and yield attributes like number of productive tillers hill^-1 (29.15), number of panicles hill^-1 (28.71), number of filled grains panicle^-1 (226.75), test weight (21.38 g), grain yield (6550 kg ha^-1) and straw yield (7556 kg ha^-1) were recorded maximum in hybrid KRH-4 as compared to RNR-15048, Chinnaponni and Mysore mallige. Amidst the farming types, the highest net return (Rs. 66790 ha^-1) and B:C ratio (2.77) was observed in natural farming. Among the cultivars, KRH-4 recorded higher net returns of Rs. 84688 ha^-1 and B:C ratio of 2.88.