Suvarna Latha, A.J.* Ratna Prasad, P., Trimurtulu, N., Madhuvani, P. and Srinivasa Rao, V.
Department of Soil Science & Agril. Chemistry, Agricultural College, Bapatla,
ANGRAU, Guntur, Andhra Pradesh
Received-06.01.2022, Revised-20.01.2022, Accepted-27.01.2022
Abstract: An incubation experiment was conducted to study the influence of decomposition of korra crop residue along with microbial consortium and starter dose of N and P fertilizers in black soils under greenhouse condition at Agricultural Research Station, Amaravati with eight treatments and laid out in a completely randomized design. The soil total carbon, total nitrogen, mineral nitrogen, MBC and microbial populations were estimated at 15 days interval. The carbon content decreased and nitrogen increased with days of incubation. The results of the study indicated that the treatments were significantly influenced by the application of crop residue along with microbial consortia. The microbial biomass carbon and microbial populations assayed at different intervals were significantly influenced by the application of crop residue along with microbial consortia. There was a decrease in C:N ratio, increase in mineral nitrogen content, higher microbial biomass carbon and microbial populations were recorded in treatments that received crop residue @1.5 t ha-1 along with microbial consortium @ 2 kg t-1+ starter dose of N and P fertilizers when compared to the treatments that received only crop residue and inorganic fertilizers.
Keywords: Crop residue, microbial consortium, total carbon, total nitrogen, microbial biomass carbon, soil micro flora
References
Abbasi, M.K., Tahir, M.M., Sabir, N. and Khurshid, M. (2015). Impact of the addition of different plant residues on nitrogen mineralization–immobilization turnover and carbon content of a soil incubated under laboratory conditions. Solid Earth, 6, 197–205.
Beck, T., Joergensen, R. G., Kandeler, E., Makeschin, F., Nuss, E., Oberholzer, H. R. and Scheu, S. (1997). An inter-laboratory comparison of ten different ways of measuring soil microbial biomass C. Soil Biology and Biochemistry, 29(7), 1023-1032.
Bilenky, M. (2021). Cover Crops and Poultry Integration for Sustainable Soil Management in Organic Vegetable Production (Doctoral dissertation, Iowa State University).
Choudhary, M., Datta, A., Jat, H. S., Yadav, A. K., Gathala, M. K., Sapkota, T. B. and Ladha, J. K. (2018). Changes in soil biology under conservation agriculture based sustainable intensification of cereal systems in Indo-Gangetic Plains. Geoderma, 313, 193-204.
Dumas, J. B. A. (1831). Procedes de I’analyse organique. Ann. Chim. Phys, 47, 198-205.
Ghoneim, A. (2008). Impact of 15N-labeled rice straw and rice straw compost application on N mineralization and N uptake by rice. International Journal of Plant Production, 2(4), 289-295.
Govaerts, B., Verhulst, N., Nelissen, V., Sayre, K. D., Crossa, J., Raes, D. and Deckers, J. (2011). The effect of tillage, crop rotation and residue management on maize and wheat growth and development evaluated with an optical sensor. Field Crops Research, 120(1), 58-67.
Graaff, M. A., Classen, A. T., Castro, H. F. and Schadt, C. W. (2010). Labile soil carbon inputs mediate the soil microbial community composition and plant residue decomposition rates. New phytologist. 188: 1055-1064.
Henriksen, T. and Breland, T. (2002). Carbon mineralization, fungal and bacterial growth, and enzyme activities as affected by contact between crop residues and soil. Biol. Fertil. Soils, 35, 41–48.
Jackson, M.L. (1973). Soil chemical analysis. Prentice Hall of India Private Ltd., New Delhi :134-182.
Kapoor, K. K. and Paroda, S. (2007). Experimental Soil Microbiology. CBS Publishers & Distributors.
Keeney, D. R. and Nelson, D. W. (1983). Nitrogen—inorganic forms. Methods of soil analysis: Part 2 chemical and microbiological properties, 9, 643-698.
Masunga, R. H., Uzokwe, V. N., Mlay, P. D., Odeh, I., Singh, A., Buchan, D. and De Neve, S. (2016). Nitrogen mineralization dynamics of different valuable organic amendments commonly used in agriculture. Applied Soil Ecology, 101, 185-193.
Noya, Y. E., Gómez–Acata, S., Montoya–Ciriaco, N., Rojas–Valdez, A., Suárez–Arriaga, M. C., Valenzuela–Encinas, C., Jiménez– Bueno, N., Verhulst, N., Govaerts, B. and Dendooven, L. (2013). Relative impacts of tillage, residue management and crop–rotation on soil bacterial communities in a semi–arid agroecosystem. Soil Biology and Biochemistry, 65, 86–95.
Perucci, P. (1990). Effect of the addition of municipal soild-waste compost on microbial biomass and enzyme activities in soil. Biol Fertil Soils 10:221–226.
Rezig, A. M. R., Elhadi, E. A. and Mubarak, A. R. (2012). Effect of incorporation of some wastes on a wheat-guar rotation system on soil physical and chemical properties. International Journal of Recycling of organic waste in Agriculture, 1(1), 1-15.
RUEss, L. and Ferris, H. (2004). Decomposition pathways and successional changes. Nematology Monographs and Perspectives, 2, 547-556.
Soest, P.J., Robertson, J.B. and Lewis, B. (1991). A. Methods for dietary fiber, neutral detergent fiber, and non-starch polysaccharides in relation to animal nutrition. J Dairy Sci Lancaster 74(10):3583–3597.
Thomsen, I. K. and Christensen, B. T. (2004). Yields of wheat and soil carbon and nitrogen contents following long‐term incorporation of barley straw and ryegrass catch crops. Soil Use and Management, 20(4), 432-438.
Walkley, A.J. and Black, I.A. (1934). Estimation of organic carbon by the chromic acid titration method. Soil Science. 37: 29-34.
Xu, Y., Ding, F., Gao, X., Wang, Y., Li, M. and Wang, J. (2019). Mineralization of plant residues and native soil carbon as affected by soil fertility and residue type. Journal of Soils and Sediments, 19(3), 1407-1415.