Conservation agriculture impacts on soil carbon sequestration under a cotton (Gossypium hirsutum)-wheat (Triticum aestivum) system in the Indo-Gangetic plains
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Keywords:
Carbon sequestration rate, Residue retention, Yield, Zero tillageAbstract
Despite many studies reporting conservation agriculture (CA) impacts on soil organic carbon (SOC) sequestration, the impacts of long-term permanent bed planting under CA on SOC sequestration are rarely reported. Hence, this study assessed the permanent bed planted CA impacts on SOC sequestration rates in 0–30 and 30–60 cm soil depths under a cotton (Gossypium hirsutum L.)-wheat (Triticum aestivum L.) system in the Indo-Gangetic Plains (IGP). The treatments comprised diverse combinations of tillage and residue retention (R), viz. conventional tillage (CT), narrow bed, narrow bed + R, broad bed, broad bed + R, flat bed + R and flat bed. Results indicated that the total SOC stock was ~32, 31 and 29% higher in CA plots than in CT plots (farmers' practice), in 0–30 cm soil depth. The SOC sequestration rate (over CT plots) in the CA plots was ~0.76 Mg C/ha/yr. The broad bed + R, narrow bed + R and flat bed + R plots had appreciably high total SOC sequestration (~0.24 Mg C/ha/yr) compared to CT plots in deep soil layer (30–60 cm). The yield data (2-year mean basis) was recorded highest in the broad bed + R (3.48 tonnes/ha and 8.11 tonnes/ha for cotton and wheat, respectively) and flat bed + R (3.38 tonnes/ha and 8.46 tonnes/ha for cotton and wheat, respectively) treatments showing a positive impact of the adoption of long-term CA in the IGP. Thus, adopting raised beds with residue retention has great potential for higher carbon sequestration and improving yields and can be recommended for sustainable intensification of arable lands in the region.
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Bhattacharyya R, Tuti M D, Kundu S, Bisht J K and Bhatt J C. 2012. Conservation tillage impacts on soil aggregation and carbon pools in a sandy clay loam soil of the Indian Himalayas. Soil Science Society of America Journal 76: 617–27. DOI: https://doi.org/10.2136/sssaj2011.0320
Bhattacharyya R, Das T K, Sudhishri S, Dudwal B, Sharma A R, Bhatia A and Singh G. 2015. Conservation agriculture effects on soil organic carbon accumulation and crop productivity under a rice-wheat cropping system in the western Indo–Gangetic Plains. European Journal Agronomy 70: 11–21. DOI: https://doi.org/10.1016/j.eja.2015.06.006
Bhattacharyya R, Rabbi S M F, Zhang Y, Young I M, Jones A R, Dennis P G, Menzies N W, Kopittke P M and Dalal R C. 2021. Soil organic carbon is significantly associated with the pore geometry, microbial diversity and enzyme activity of the macro-aggregates under different land uses. Science of the Total Environment 778: 146286. DOI: https://doi.org/10.1016/j.scitotenv.2021.146286
Chan K Y, Bowman A and Oates A. 2001. Oxidizable organic carbon fractions and soil quality changes in an oxic paleustalf under different pasture leys. Soil Science 166(1): 61–67. DOI: https://doi.org/10.1097/00010694-200101000-00009
Das T K, Ghosh S, Das A, Sen S, Datta D, Ghosh S, Raj R, Behera B, Roy A, Vyas A K and Rana D S. 2021. Conservation agriculture impacts on productivity, resource-use efficiency and environmental sustainability: A holistic review. Indian Journal of Agronomy 66: 111–27.
Das T K, Bhattacharyya R, Sudhishri S, Sharma A R, Saharawat Y S, Bandyopadhyay K K, Sepat S, Bana R S, Aggarwal P, Sharma R K and Bhatia A. 2014. Conservation agriculture in an irrigated cotton-wheat system of the western Indo-Gangetic Plains: Crop and water productivity and economic profitability. Field Crops Research 158: 24–33. DOI: https://doi.org/10.1016/j.fcr.2013.12.017
Jat H S, Datta A, Choudhary M, Yadav A K, Choudhary V, Sharma P C, Gathala M K, Jat M L and McDonald A. 2019. Effects of tillage, crop establishment and diversification on soil organic carbon, aggregation, aggregate associated carbon and productivity in cereal systems of semi-arid Northwest India. Soil and Tillage Research 190: 128–38. DOI: https://doi.org/10.1016/j.still.2019.03.005
Jat R K, Sapkota T B, Singh R G, Jat M L, Kumar M and Gupta R K. 2014. Seven years of conservation agriculture in a rice-wheat rotation of Eastern Gangetic Plains of South Asia: Yield trends and economic profitability. Field Crops Research 164: 199–210. DOI: https://doi.org/10.1016/j.fcr.2014.04.015
Jenkinson D S and Powlson D S. 1976. The effects of biocidal treatments on metabolism in soil V. A method for measuring soil biomass. Soil Biology and Biochemistry 8: 209–13. DOI: https://doi.org/10.1016/0038-0717(76)90005-5
Modak K, Ghosh A, Bhattacharyya R, Biswas D R, Das T K, Das S and Singh G. 2019. Response of oxidative stability of aggregate-associated soil organic carbon and deep soil carbon sequestration to zero-tillage in subtropical India. Soil and Tillage Research 195: 104370. DOI: https://doi.org/10.1016/j.still.2019.104370
Paustin K, Larson E, Kent J, Marx E and Swan A. 2019. Soil C sequestration as a biological negative emission strategy. Frontiers in Climate 1: 8–14. DOI: https://doi.org/10.3389/fclim.2019.00008
Sparling G, Vojvodic-Vukovic M and Schipper L A. 1998. Hot water soluble C as a simple measure of labile soil organic matter; the relationship with microbial biomass C. Soil biology and Biochemistry 30: 1469–472. DOI: https://doi.org/10.1016/S0038-0717(98)00040-6
Tirol-Padre A and Ladha J K. 2004. Assessing the reliability of permanganate–oxidizable carbon as an index of soil labile carbon. Soil Science Society of America Journal 68: 969–78. DOI: https://doi.org/10.2136/sssaj2004.9690
Walkley A and Black A. 1934. An examination of the degtjareff method for determining soil organic matter, and a proposed modification of the chromic acid titration method. Soil Science 37: 29–38. DOI: https://doi.org/10.1097/00010694-193401000-00003
Yagi R, Ferreira M E, Cruz M C P and Barbosa J C. 2005. Soil organic matter as a function of nitrogen fertilization in crop succession. Science and Agriculture 62: 374–80 DOI: https://doi.org/10.1590/S0103-90162005000400011
Yang Y S, Guo J F, Chen GS, Xie J S, Gao R, Li Z and Jin Z. 2005. Carbon and nitrogen pools in Chinese fir and evergreen broadleaved forests and changes associated with felling and burning in mid-subtropical China. Forest Ecology and Management 216: 216–26. DOI: https://doi.org/10.1016/j.foreco.2005.05.030
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