Influence of diverse crop management practices on weed suppression, crop and water productivity and nutrient dynamics in Bt-cotton (Gossypium hirsutum) based intercropping systems in a semi-arid Indo-Gangetic plains region
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Keywords:
Direct sowing, Intercropping system, Nutrient dynamics, Planting geometry, Seed cotton yield, Transplanting, WeedAbstract
Transplanted cotton (Gossypium sp) harnessed significantly highest seed cotton yield (3.22 tonnes/ha), system productivity, IWUE and IWP over direct-seeded cotton besides suppressing weed population. Cotton + cowpea intercropping system also suppressed the weeds and their growth at different growth stages over cotton + okra system and sole cotton. Planting geometry of 90 × 60 cm proved significantly superior over 120 × 45 cm in terms of seed cotton yield, system productivity, IWUE and IWP. Among intercropping systems, sole cotton registered significantly highest seed cotton yield. Total N and P uptake was highest under transplanted cotton while direct seeded cotton revealed higher total K uptake. Cotton + cowpea intercropping system removed highest N and P while cotton + okra exhibited highest K uptake. Transplanted cotton and cotton + cowpea intercropping system led to actual N build up of +8 and +17 kg N/ha, respectively. Similarly, cotton + cowpea and cotton + okra intercropping systems led to actual K balance of –102.1 and –105.4 kg K/ha, respectively. Overall, transplanted Bt-cotton with planting geometry of 90 × 60 cm under cotton + cowpea intercropping system led to highest seed cotton yield, system productivity, less weed infestation and high IWUE and IWP. Transplanted Bt-cotton also led to comparatively +ve N balance and less depletion of P and K as compared to direct seeding in a semi-arid IGPR.
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References
Singh A and Singh T. 2015. Growth, yield and quality of Bt-cotton (Gossypium hirsutum) as influenced by different intercropping systems and nitrogen levels. Indian Journal of Agronomy 60(2): 236–44.
Blaise D, Venugopalan M V and Raju A R. 2014.Introduction of Bt-cotton hybrids in India: Did it change the Agronomy? Indian Journal of Agronomy 59(1): 1–20.
Choudhary A K, Thakur R C and Kumar N. 2006. Effect of Integrated nutrient management on water use and water-use- efficiency in wheat (Triticum aestivum) - rice (Oryza sativa) crop sequence in N-W Himalayas. Indian Journal of Soil Conservation 34(3): 233–6.
Choudhary A K, Rana D S, Bana R S , Pooniya V, Dass A, Kaur R and Rana K S. 2015. Agronomy of Oilseed and Pulse Crops, pp 77–85. Post Graduate School, IARI, New Delhi and ICAR, DARE, New Delhi.
Dass A and Kumar S. 2013. Bt-cotton and pigeonpea inter-cropping for enhancing productivity and profitability.
Proceedings of International conference on innovations in Indian science, engineering and technology organised by CSIR at IARI, New Delhi.
DES. 2011. Directorate of Economics and Statistics, Agriculture Statistics at a Glance. Ministry of Agriculture and Food Processing, Government of India, New Delhi, p 15.
Dong H Z, Li W J, Tang W, Li Z H and Zhang D M. 2005. Increased yield and revenue with a seedling transplanting system for hybrid seed production in Bt-cotton. Journal of Agronomy and Crop Science 191(2): 116–24. DOI: https://doi.org/10.1111/j.1439-037X.2004.00130.x
Pooniya V, Choudhary A K and Swarnalaxami K. 2015. High- value crops’ imbedded intensive cropping systems for enhanced productivity, resource-use-efficiency, energetics and soil-health in Indo-Gangetic Plains. Proceedings of the National Academy of Sciences, India Section B: Biological Sciences, Published online DOI: 10.1007/s40011-015-0679-6. DOI: https://doi.org/10.1007/s40011-015-0679-6
Rana D S, Paul T and Rajpoot S K. 2014a.Transplanting cotton: A novel technique for enhancing productivity and resource use efficiency. Indian Farming 63(10): 4–9.
Rana K S, Choudhary A K, Sepat S, Bana R S and Dass A. 2014b. Methodological and Analytical Agronomy, p 276 Post Graduate School, IARI, New Delhi.
Salakinkop S R. 2011. Enhancing the productivity of irrigated Bt- cotton by transplanting technique and planting geometry. Indian Journal of Agricultural Sciences 81(2): 150–3.
Solunke P S, Thokale J G and Barve U S. 2011.Effect of intercropped kharif legumes with Bt-cotton on seed cotton yield, economics and soil fertility. Crop Research 41(1-3): 56– 8.
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