Studies on Optimization of Production Factors under Resource Constraints in North Eastern Dry Zone of Karnataka, India

Abstract:

A field experiment was conducted during Rabi 2017-18 and 2018-19 at Zonal Agricultural Research Station Kalaburagi on optimization of production factors under resource constraints (priority inputs in Rabi sorghum). The results revealed that adoption of Full Package of Practices recorded significantly higher plant height, leaf area, leaf area index and total dry matter production (260 cm, 1144 cm2, 1.69 and 79.55 respectively) compared to all other treatments. Full Package of Practices to rabi sorghum also recorded significantly higher grain yield, fodder yield and harvest index (1261 kg ha-1, 2763 kg ha-1 and 31.20 respectively) over other treatments. Control recorded significantly lower grain yield and fodder yield (835 kg ha-1 and 2254 kg ha-1). Full Package of Practices achieved significantly higher gross returns (Rs.51053 ha-1), net returns (Rs. 27728 ha-1) and B:C ratio (2.19) compared to control (Rs. 35497 ha-1), net returns (Rs. 17197 ha-1) and B:C ratio (1.94).it indicated that application of full package of practice with improved hybrid or local cultivar should be followed to obtain higher yield and economic remuneration of sorghum. The most important yield reducing production factors on the order of priority are irrigation, fertilizer, and weed control for sorghum production under north eastern dry zone of Karnataka.