JOURNAL of Soil Biology and Ecology

Soil microbial population as influenced by different crops and the same crop grown in different locations of Paderu, Andhra Pradesh

Author: R. LAKSHMIPATHY, T.TEJASWI, R. VENUGOPALA RAO, AND D.J.BAGYARAJ

Abstract :

Microbial population of soil varies depending on the soil type, climatic conditions, cropping pattern and different cultural practices followed. In the present study, the microbial inoculants with various PGPR were distributed to the farmers of different tribal hamlets. After application of these inoculants, the sampling was made during different crop growth period and microbial population was determined. In general the microbial population was very much improved in the soils of the fields where microbial inoculants were applied. The total microbial population and PGPR viz, Rhizobium, Azospirillum, Azotobacter, PSB, KSB and Pantoea dispersa varied from place to place and in different crops. However, the population was more in plantation crop than other annual crops. In annual crops, the microbial population was more during flowering stage than initial and harvesting stage. This study clearly showed improved microbial population due to application of microbial inoculants in different crops over uninoculated control plots and also more microbial population in plantation crop than in annual crops.

References :

Duhamel, M. and Peay, K.G., 2015. Does microbial diversity confound general predictions. Trends in Plant Sci., 20:695-697.

Cao, H., Chen, R., Wang, L., Jiang, L., Yang, F., Zheng, S., Wang, G. and Lin, X. 2016. Soil pH, total phosphorus, climate and distance are the major factors influencing microbial activity at a regional spatial scale. Sci. Rep., 6:25815.

Giovannetti, M. and Mosse, B. 1980. An evaluation of techniques to measure vesicular arbuscular infection in roots. New Phytol., 84:489- 500.

Hu, X., Liu, J., Wei, D., Zhu, P., Cui, X., Zhou, B., Chen, X., Jin, J., Liu, X. and Wang, G., 2018. Soil Bacterial Communities Under Different Long-Term Fertilization Regimes in Three Locations Across the Black Soil Region of Northeast China. Pedosphere,  28:751–763.

Maron, P.A., Mougel, C. and Ranjard, L., 2011.Soil microbial diversity: Methodological strategy, spatial overview and functional interest. C. R. Biol., 334:403-411.

Martin, J.P., 1950. Use of acid, rose bengal and streptomycin in the plate method for estimating soil fungi. Soil Sci., 69:215-232.

Mbuthia, L.W., Acosta-Martínez, V., DeBruyn, J., Schaeffer, S., Tyler, D.E., Odoi, M. Mpheshea, F., Walker, N. and Eash, F., 2015. Long term tillage, cover crop, and fertilization effects on microbial community structure, activity: implications for soil quality. Soil Biol. Biochem., 89:24-34.

Philips, J.M. and Hayman, D.S., 1970. Improved procedures for clearing roots and staining parasitic and vesicular mycorrhizal fungi for rapid assessment of infection. Trans. Br. Mycol. Soc., 55:158-161.

Shah, K.K., Tripathi, S., Tiwari, I., Shrestha, J., Modi, B., Paudel, N. and Das, B.D., 2021. Role of soil microbes in sustainable crop production and soil health: A review. Agric. Sci. Technol., 13:1313-8820.

Srivastava, P., Singh, R., Bhadouria, R., Tripathi, S. and Raghubanshi, A.S., 2020. Temporal change in soil physicochemical, microbial, aggregate and available C characteristic in dry tropical ecosystem. Catena, 190:104553.

van Der Putten,W.H., 2017. The plant perceptron connects environment to development. Sci. Nature, 543:337-345.

van Veen, J.A., van Overbeek, L.S. and van Elsas, J.D., 1997. Fate and activity of microorganisms introduced into soil. Microbiol. Mol. Biol. Rev. 61:121-35.

Wakelin, S.A., Macdonald, L.M., Rogers, S.L., Gregg, A.L., Bolger, T.P. and Baldock, J.A..2008. Habitat selective factors influencing the structural composition and function capacity of microbial communities in agricultural soils. Soil Biol. Biochem., 40: 803-813.

White, P.M and Rice, C.W., 2007. Tillage effects on microbial and carbon dynamics during plant residue decomposition. Soil Sci. Soc. Am. J., 73:138-145.

Zhang, M., Zhang, X., Zhang, L., Zeng, L., Liu, Y., Wang, X., He, P., Li, S., Liang, G. and Zhou, W., 2021. The stronger impact of inorganic nitrogen fertilization on soil bacterial community than organic fertilization in short-term condition. Geoderma, 382:114752.

Zhang, W., Liu, G., Zhang, L., Jiang, X.and Han, 2015.Mechanisms of soil acidification reducing bacterial diversity. Soil Biology and Biochemistry, 81: 275-281.