Vol. 8 (6) : November-December 2017 issue
Green Farming Vol. 8 (6) : 1280-1283 ; November-December, 2017
Effect of different land configurations and nutrient levels on growth, yield, nutrient uptake and economics of Bt cotton
AMBIKA V.1*, G.S. YADAHALLI2, B.M. CHITTAPUR3, SHAMRAO KULKARNI4, VIDYAVATHI G. YADAHALLI5 and SIDDU M. MALAKANNAVAR6
Department of Agronomy, College of Agriculture, University of Agric. Sciences, Raichur – 584 104 (Karnataka)
1Ph.D. Scholar *(firstname.lastname@example.org), 2,4Asstt. Professor, 3Professor, 5Subject Matter Specialist, 6P.G. Student
Subject : Agronomy and Crop Production
Paper No. : P-6977
Total Pages : 4
Received : 12 September 2017
Revised accepted : 16 November 2017
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AMBIKA V., G.S. YADAHALLI, B.M. CHITTAPUR, SHAMRAO KULKARNI, VIDYAVATHI G. YADAHALLI and SIDDU M. MALAKANNAVAR. 2017. Effect of different land configurations and nutrient levels on growth, yield, nutrient uptake and economics of Bt cotton. Green Farming Vol. 8 (6) : 1280-1283 ; November-December, 2017
A field experiment was conducted during the kharif 2016 at Main agriculture research station, Raichur to study the yield maximization through in-situ moisture conservation practices in conjunction with nutrient levels in Bt cotton. The results of this experiment revealed that there was significant difference in growth and yield attributing parameters with different in-situ moisture conservation practices. Ridges and furrows recorded significantly higher plant height (115.09 cm), sympodial branches (25.37), total number of bolls (35.48), seed cotton yield (2403 kg ha-1) and nutrient uptake (106.92, 19.94 and 124.93 kg NPK ha-1, respectively) over flat bed (96.49 cm, 20.23, 31.61, 1743 kg ha-1, 77.58, 14.47 and 90.65 kg NPK ha-1, respectively). Application of 90:45:45 NPK kg ha-1 (50% N through organic) was noticed significantly higher plant height, sympodial braches per plant, number of bolls per plant and seed cotton yield (110.8 cm, 24.86, 35.42 and 2308 kg ha-1, respectively) and they were on par with application of 90:45:45 NPK kg ha-1 (109.2 cm, 23.83, 34.78 and 2148 kg ha-1, respectively). Lower plant height, sympodial braches per plant, number of bolls per plant and seed cotton yield were exerted with application of 60:30:30 NPK kg ha-1 (101.5 cm, 20.70, 32.47 and 1937 kg ha-1, respectively).
Key words :
Broad bed and furrows, Bt cotton, Flat bled, In-situ moisture conservation, Ridges and furrows.