1Agricultural Research Station, ANGRAU, Amaravathi-522020, India
2Geospatial Techology Centre, RARS, Lam, ANGRAU, Guntur-522034, India
3PPEG, NRSC, Hyderabad-500 042, India
4Department of Statistics and Computer Applications, Agricultural College, ANGRAU, Bapatla-522 101, India
Department of Soil Science and Agricultural Chemistry, Agricultural College, ANGRAU, Bapatla-522 101, India
*E-mail: chintadavidhyashree@gmail.com
Online published on 27 January, 2023.
Research was conducted to study the biological activity and and isolate the dominant fungi and bacteria in coastal saline soil s. Soil samples having different salinity levels viz. 0.60, 1.95, 3.59, 5.50, 7.50 and 9.35 dS m−1 were collected from coastal soils of Guntur district, AP.The soil enzymatic activity (dehydrogenase and phosphatase) and microbial population (fungi, bacteria, actinomycetes) were assayed by following standard procedures. The dominant fungal and bacterial isolates were identified using standard procedures. The data were analyzed statically. Biological assay of soil samples collected at different salinity levels revealed that the soil enzymatic activity and microbial population were significantly influenced by soil salinity. The soil biological activity was the highest at the low levels of salinity and vice-versa. A total of seven fungal and 18 bacterial isolates were observed in the coastal rice growing soils of Guntur district,AP. This study clearly indicated that the soil salinity significantly influenced the number and distribution of microbial population and enzyme activity.
Enzyme activity, Isolates, Microbial populations, Bacteria, Fungi, Actinomycetes, Soil salinity, Biological activity
