Evaluating the trade-offs and sustainability of minimum tillage and crop-residue addition for food production in the dryland tropics


Keywords:
Biomass, Carbon-sequestration, Cropping-systems, Crop-residues, TillageAbstract
A long-term study was carried out at ICRISAT farm, Patancheru (India) during rainy (kharif) season 2009–18
with an objective to evaluate impact of tillage (minimum/conventional) and residue (addition/removal) management practices on production capacity and sustainability of maize-chickpea sequential and maize+pigeonpea intercropping systems. The experiment was laid out in spilt plot design with 4 replications. The effects of residue addition were inconsistent till the third year of experiment. However, yield benefits from residue addition became apparent fourth year onwards. After 7 years, residue addition showed significant yield benefits to the tune of 9–25% during 2016–17 (8th cropping cycle) and 18–31% during 2017–18 (9th cropping cycle) in both cropping systems. Residue addition also resulted in additional net income of `16,900/ha to `22,980/ha compared to no-residue addition. Minimum tillage in general tended to result in yield loss over normal tillage since beginning. During 8th and 9th cropping cycles, there was net annual loss up to `5400/ha under minimum tillage. Alongside productivity and economic benefits, at the end of 8th year i.e. 2016–17, residue addition showed improved soil health and sequestered around 300 kg carbon/ha/year.
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Anapalli S S, Reddy K N and Jagadamma S. 2018. Conservation tillage impacts and adaptations in irrigated corn production in a humid climate. Agronomy Journal 110(6): 1–14. DOI: https://doi.org/10.2134/agronj2018.03.0195
Chander G, Wani S P, Pardhasaradhi G, Patil M and Rao A N. 2018. Building soil health, improving carbon footprint and minimizing greenhouse gas emissions through CSR. Win-Win proposition for community and corporates through CSR (CABI 2018), pp. 35-54. Wani SP and Raju KV (Eds). CABI, Wallingford. DOI: https://doi.org/10.1079/9781786394514.0035
Corbeels M, Scopel E, Cardoso A, Bernoux M, Douzet J M and Neto M S. 2006. Soil carbon storage potential of direct seeding mulch-based cropping systems in the Cerrados of Brazil. Global Change Biology 12(9): 1773–87. DOI: https://doi.org/10.1111/j.1365-2486.2006.01233.x
Jat R A, Wani S P, Pathak P, Singh P, Sahrawat K L, Chander G and Sudi R. 2015. Evaluating climate change mitigation and adaptation potential of conservation agriculture in semi-arid tropics of southern India. British Journal of Environment and Climate Change 5(4): 324–38. DOI: https://doi.org/10.9734/BJECC/2015/18479
Lal R. 2013. Food security in a changing climate. Ecohydrology and Hydrobiology 13(1): 8–21. DOI: https://doi.org/10.1016/j.ecohyd.2013.03.006
Mirsky S B, Ryan M R, Teasdale J R, Curran W S, Reberg-Horton C S, Spargo J T, Wells M S, Keene C L and Moyer J W. 2013. Overcoming weed management challenges in cover crop–based organic rotational no-till soybean production in the eastern United States. Weed Technology 27(1): 193–203. DOI: https://doi.org/10.1614/WT-D-12-00078.1
Martínez I, Chervet A, Weisskopf P, Sturny W G, Etana A, Stettler M, Forkman, J and Keller T. 2016. Two decades of no-till in the Oberacker long-term field experiment: Part I. Crop yield, soil organic carbon and nutrient distribution in the soil profile. Soil and Tillage Research 163: 141–51. DOI: https://doi.org/10.1016/j.still.2016.05.021
Ndoli A, Baudron F, Sida T S, Schut A G, van Heerwaarden J and Giller K E. 2018. Conservation agriculture with trees amplifies negative effects of reduced tillage on maize performance in East Africa. Field Crops Research 221: 238–44. DOI: https://doi.org/10.1016/j.fcr.2018.03.003
Pittelkow C M, Liang X, Linquist B A, Van Groenigen K J, Lee J, Lundy M E, Van Gestel N, Six J, Venterea R T and Van Kessel C. 2015. Productivity limits and potentials of the principles of conservation agriculture. Nature 517: 365. DOI: https://doi.org/10.1038/nature13809
Schmidt R, Gravuer K, Bossange A V, Mitchell J and Scow K. 2018. Long-term use of cover crops and no-till shift soil
microbial community life strategies in agricultural soil. PloS one 13(2): 1–19.
Sharma K, Mandal U K, Srinivas K, Vittal K, Mandal B, Grace J K and Ramesh V. 2005. Long-term soil management effects on crop yields and soil quality in a dryland Alfisol. Soil & Tillage Research 83(2): 246–59. DOI: https://doi.org/10.1016/j.still.2004.08.002
Snedecor G W and Cochran W G. 1989. Statistical methods, 8th edn. Ames: Iowa State University, Iowa, USA.
Tui S H K, Valbuena D, Masikati P, Descheemaeker K, Nyamangara J, Claessens L, Erenstein, O, Van Rooyen A and Nkomboni D. 2015. Economic trade-offs of biomass use in crop-livestock systems: Exploring more sustainable options in semi-arid Zimbabwe. Agricultural Systems 134: 48–60. DOI: https://doi.org/10.1016/j.agsy.2014.06.009
Verhulst N, Govaerts B, Verachtert E, Castellanos-Navarrete A, Mezzala M, Wall P, Deckers J and Sayre K D. 2010.
Conservation agriculture, improving soil quality for sustainable production systems? Advances in Soil Science: Food security and soil quality, pp. 137–208.
Lal R, Stewart B A (Eds). CRC press, Florida.
Wani S, Pathak P, Jangawad L, Eswaran H and Singh P. 2003. Improved management of Vertisols in the semiarid tropics for increased productivity and soil carbon sequestration. Soil Use and Management 19(3): 217–22. DOI: https://doi.org/10.1111/j.1475-2743.2003.tb00307.x
Xue J F, Pu C, Liu S L, Chen Z D, Chen F, Xiao X P, Lal R and Zhang H L. 2015. Effects of tillage systems on soil organic
carbon and total nitrogen in a double paddy cropping system in Southern China. Soil & Tillage Research 153: 161–68. DOI: https://doi.org/10.1016/j.still.2015.06.008
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