Effect of planting geometry and integrated nutrient management on nutrient uptake and fibre quality of Bt. cotton
Abstract
Cultivation of Bt cotton (Gossypium hirsutum) with planting geometry of 120 X 45 cm recorded significantly highest N, P and K uptake. Application of 100% RDF (120: 60;60 NPK kg/ha) + 25 kg ZnSO4 + 20 kg FeSO4 + two foliar sprays of boron @ 0.1% recorded significantly highest N, P and K uptake than rest of all the INM treatments. The quality parameters of cotton e.g. 2.5% span length (mm), bundle strength (g/text), Fibre fineness (ug/inch), seed index, ginning percentage, however, did not showed any significant impact of either planting geometry or integrated nutrient management during both the years of experimentation (2011–12 to 2012–13).
Keywords
Bt. Cotton, Integrated nutrient management, Gossypium hirsutum, plant geometry
