Crop establishment methods and Zn nutrition in Bt-cotton: Direct effects on system productivity, economic-efficiency and water-productivity in Bt-cotton-wheat cropping system and their residual effects on yield and Zn biofortification in wheat
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Keywords:
Bt-cotton–wheat cropping system, Economics, Production–efficiency, Residual effects, Residual Zn fertility, Water productivity, Zn biofortificationAbstract
A field experiment was conducted at New Delhi (India) during kharif and rabi seasons of 2013–14 and 2014–15 to assess the performance of 2 crop establishment methods (CEMs) of Bt-cotton [Direct sowing and transplanting] and 5 zinc (Zn) levels [0, 2.5, 5, 7.5 kg Zn/ha through zinc sulphate hepta hydrate (ZSHH) and 0.5% ZnSO4 (ZSHH) foliar spray at 60 and 90 days after planting] applied to Bt-cotton on the system productivity, production–efficiency, economic–efficiency and water–productivity of Bt-cotton–wheat cropping system; as well as their residual effects on succeeding wheat in a Bt-cotton–wheat cropping system (CWCS) in a semi–arid Indo–Gangetic Plains Region (IGPR). In succeeding wheat, the residual effects of Zn levels applied to cotton were also compared with direct effect of Zn applied to wheat by replacing the foliar Zn spray treatment of cotton with Zn @ 5 kg/ha in wheat. The results revealed that direct and residual effects of cotton CEMs were non–significant on yield attributes and yield of wheat. However, the residual effects of Zn @ 5 and 7.5 kg/ha were significant on yield attributes and yield of wheat. Direct effect of Zn @ 5 kg/ha applied in wheat was at par with residual effects of 5 and 7.5 kg Zn/ha applied to cotton. In general, wheat grain yield was enhanced by 12.6, 12.3 and 12.9% during 2013–14, and 9.9, 8.1 and 8.3% during 2014–15 over control due to direct and residual effect of 2.5, 5 and 7.5 kg Zn/ha, respectively. Similarly on wheat straw yield. The influence of cotton CEMs on CWCS system productivity was non–significant. However, direct and residual effects of Zn levels induced a marked variation in CWCS system productivity as well as residual Zn fertility. Successive increase in Zn levels from 0 to 5 kg/ha in cotton resulted in significant increase in system productivity; thereafter, application of Zn @ 7.5 kg/ha revealed a non–significant influence. On an average, CWCS system productivity enhanced by 7.7% due to direct effect of 5 kg Zn/ha applied to wheat, and by 4.8, 10 and 9.9% due to residual effect of 2.5, 5 and 7.5 kg Zn/ ha over control. With successive increase in Zn–levels to cotton, a significant Zn–enrichment of wheat grain and straw was also observed. Cotton CEMs exhibited a significant influence on Zn content and uptake in wheat straw but with non-significant influence on wheat grains. Again, cotton CEMs exhibited a non–significant influence on system production–efficiency (PE), economic–efficiency (EE) and profitability. On the other hand, successive increase in Zn levels to cotton resulted in perceptible increase in system PE and EE up to 5 kg Zn/ha. Foliar Zn spray to cotton and direct Zn application to wheat also exhibited significant increase in system PE and EE over control, but, this treatment was at par with direct and residual effects of 5 and 7.5 kg Zn/ha. There was a significant influence of CEMs and Zn levels on water–use–efficiency (WUE) and water–productivity (WP) in CWCS. Residual effects of 5 and 7.5 kg Zn/ ha applied to cotton resulted in significantly higher net returns (NR) and benefit: cost ratio (BCR). Direct effect of 5 kg Zn/ha to wheat also exhibited higher NR and BCR in CWCS over control and residual effect of 2.5 kg Zn/ha. Overall, successive increase in Zn–levels led to significant enhancement in system productivity, PE, EE and water productivity up to 5 kg Zn/ha. The residual effects of 5 and 7.5 kg Zn/ha applied to Bt-cotton exhibited a significant influence on productivity, profitability and Zn biofortification of succeeding wheat which also remained at par with direct application of 5 kg Zn/ha applied to wheat in a Bt-cotton–wheat cropping system in a semi–arid IGPR.
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References
Abid M, Ahmed N, Qayyum M F, Shaaban M and Rashid A. 2013. Residual and cumulative effect of fertilizer Zn applied in wheat–cotton production system in an irrigated Aridisol. Plant, Soil and Environment 59(11): 505–10. DOI: https://doi.org/10.17221/313/2013-PSE
Ahmed N, Abid M and Rashid A. 2010. Zinc fertilization impact on irrigated cotton grown in an Aridisol: Growth, productivity, fibre quality, and oil quality. Communications in Soil Science and Plant Analysis 41(13): 1 627–43. DOI: https://doi.org/10.1080/00103624.2010.485242
Ali L, Ali M and Mohyuddin Q. 2011. Effect of foliar application of Zn and B on seed cotton yield and economics in cotton– wheat cropping pattern. Journal of Agricultural Research 49(2): 173–80.
Ali M, Ali L, Sattar M and Ali M A. 2010. Response of seed cotton yield to various plant populations and planting methods. Journal of Agricultural Research 48(2): 163–9.
Cakmak I, Torun B, Erenoglu B, Kalayci M, Yilmaz A, Ekij H and Braun H J. 1996. Zn deficiency in soils and plants in Turkey and plant mechanism involved in Zn deficiency. Turkish Journal of Agriculture and Forestry 20: 13–23.
Cakmak I, Torun B, Erenoglu B, Ozturk L, Marschner H, Kalayci M, Ekiz H and Yilmaz A. 1998. Morphological and physiological differences in the response of cereals to Zn deficiency. Euphytica 100(1–3): 349–57. DOI: https://doi.org/10.1023/A:1018318005103
Chaudhary S, Singh H, Singh S and Singh V. 2014. Zn requirement of green gram–wheat crop sequence in alluvial soil. Indian Journal of Agronomy 59(1): 48–52.
Chauhan T M, Ali J, Singh H, Singh N and Singh S P. 2014. Effect of Zn and Mg nutrition on yield, quality and removal of nutrients in wheat. Indian Journal of Agronomy 59(2): 276–80.
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 north-western Himalayas. Indian Journal of Soil Conservation 34(3): 233–6.
Gomez K A and Gomez A A. 1984. Statistical Procedures for Agricultural Research, 2nd edn. A Wiley-Inter-science Publication, John Wiley and Sons, New York.
Gulick S H, Cassman K G and Grattan S R. 1989. Exploitation of soil potassium in layered profiles by root systems of cotton and barley. Soil Science Society of America Journal 53: 146– 53. DOI: https://doi.org/10.2136/sssaj1989.03615995005300010028x
Kumar A, Choudhary A K and Suri V K. 2015a. Influence of AM–fungi and applied phosphorus on growth indices, production efficiency, phosphorus–use efficiency and fruit– succulence in okra (Abelmoschus esculentus)–pea (Pisum sativum) cropping system in an acid Alfisol. Indian Journal of Agricultural Sciences 85(8): 1 030–37.
Kumar A, Choudhary A K and Suri V K. 2015b. Influence of AM fungi, inorganic phosphorus and irrigation regimes on plant water relations and soil physical properties in okra (Abelmoschus esculentus L.)–pea (Pisum sativum L.) cropping system in Himalayan acid Alfisol. Journal of Plant Nutrition 39(5): 666–82. DOI: https://doi.org/10.1080/01904167.2015.1087030
Manea M, Sen A, Kumar A, Upadhyay P K, Singh Y, Srivastava V K and Singh R K. 2015. Performance of babycorn under different fertility levels and planting methods and its residual effect on sorghum. Indian Journal of Agronomy 60(1): 45–51.
Mayee C D, Munga D, Dhillon S S, Nehra P L and Pundhir P. 2008. Cotton–wheat production system in south Asia: A success story. Asia Pacific Association of Agricultural Research In-stitutes, Bangkok, Thailand.
Pooniya V, Choudhary A K, Dass A, Bana R S, Rana K S, Rana D S, Tyagi V K and Puniya M M. 2015. Improved crop management practices for sustainable pulse production: An Indian perspective. Indian Journal of Agricultural Sciences 85(6): 747–58.
Rafique E, Rashid A, Ryan J and Bhatti A U. 2006. Zn deficiency in rainfed wheat in Pakistan: Magnitude, spatial variability, management, and plant analysis diagnostic norms. Communications in Soil Science and Plant Analysis 37: 181– 97. DOI: https://doi.org/10.1080/00103620500403176
Rajpoot S, Rana D S and Choudhary A K. 2016. Effect of crop establishment methods on seed germination, seedling mortlity and growth of Bt-cotton (Gossypium hirsutum) based intercropping systems. Annals of Agricultural Resarch 37(3): 316–20.
Rana K S, Choudhary A K, Sepat S, Bana R S and Dass A. 2014. Methodological and Analytical Agronomy. Post Graduate School, IARI, New Delhi, p 276.
Suri V K, Choudhary A K, Chander G and Verma T S. 2011. Influence of vesicular arbuscular mycorrhizal fungi and applied phosphorus on root colonization in wheat and plant nutrient dynamics in a phosphorus–deficient acid Alfisol of western Himalayas. Communications in Soil Science and Plant Analysis 42(10): 1 177–86. DOI: https://doi.org/10.1080/00103624.2011.566962
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