Appropriation of Tillage and Sowing Pattern for Enhancing Productivity of Bt Cotton
DOI:
https://doi.org/10.37591/rrjoast.v3i3.1104Abstract
Abstract
An experiment was carried out at Junagadh (Gujarat) during 2010 to 2012 to assess the response of Bt cotton (NHH-44) to three tillage practices (Conventional tillage i.e. cross cultivation + blade harrowing + planking, Ploughing + blade harrowing + planking, and Tillage through rotavator) and four sowing patterns (Flat bed sowing, Furrow sowing, Ridge sowing, and Paired row sowing). The results revealed that ploughing + blade harrowing + planking significantly improved growth and yield attributes viz., plant height, number of bolls/plant, single boll weight and seed cotton weight/plant and thereby increased seed cotton yield (2257 kg/ha) and stalk yield (5352 kg/ha along with higher net return (Rs. 69,183/ha) and B:C (4.08) over conventional tillage. The ridge sowing enhanced growth and yield parameters viz. plant height, number of bolls/plant, single boll weight and seed cotton weight/plant and ultimately increased seed cotton yield (2244 kg/ha) and stalk yield (5316 kg/ha), net return (Rs. 68,547/ha) and B:C (4.04) over flat bed sowing.
Key words: Cotton, tillage, flat bed, ridge, furrow, paired row
