Author(s): Rishabh Singh Chandel, AK Srivastava, Ram Pyare, Anshul Singh, and Arushi Chandel

Abstract: A field experiment was conducted on sandy loam soils of Students’ Instructional Farm, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur, during kharif 2021-22 and 2022-23 to find out the Effect of carbon sequestration management practices on growth, yield attributes and yield of maize in maize-potato-green gram cropping system. The green gram crop residue was incorporated in soil ten days before sowing of maize either alone or in combination with microbial consortia, organic based product and 100% RDF (120:60:60) as decomposition accelerators. Pooled data from a two-year study demonstrated that diverse carbon sequestration management practices resulted in significant enhancements in growth characteristics at various development stages, yield-attributing characters, and grain and stover yield of maize. Among the treatments, the highest plant height (224.60 cm), dry matter accumulation (1604.36 g m^-2), leaf area index (4.91), Chlorophyll intensity (41.68%) as well as crop growth rate (24.39 g m^-2 day^-1) was recorded with the treatment where crop residue incorporation + fungal consortium @ 1 kg ha^-1 + bacterial consortium @ 1 kg ha^-1 + 100% RDF were applied followed by the application of crop residue incorporation + bacterial consortium @ 1 kg ha^-1 + 100% RDF were applied, both were statistically at par with each other while significantly superior over rest of the treatments. Similar trend was also recorded for number of grain rows cob^-1, number of grains row^-1, cob’s length, test weight, grain as well as stover yield during both the years. Thus, crop residue treated with microbial consortia incorporated along with 100% RDF practice is viable option of carbon sequestration management to achieve higher growth, yield attributes and yield from maize in maize-potato-green gram cropping system.

DOI: 10.33545/26174693.2024.v8.i3c.697