MICROBIOLOGICAL CHARACTERISTICS OF GRAY-BROWN (CHESTNUT) SOILS OF SEMI-HUMID SUBTROPICS OF THE LANKARAN REGION
https://doi.org/10.51886/1999-740X_2022_2_33
Abstract
This article provides information on the microbiological characteristics of gray-brown (chestnut) soils in the semi-humid subtropics of the Lankaran region. The data obtained were analyzed in a comparative aspect for individual biotopes: natural and cultivated irrigated cenosis under cereals. The indicators were compared by the number and group composition of microorganisms. The dynamics of changes in the quantitative indicators of the microbiota for individual soil depths was studied. On the basis of data on the number of microorganisms of individual subtypes of gray-brown soils, graphs characterizing these changes were compiled. It has been established that in these soil subtypes, the average number of microbiota varies from 4.1-3.7 to 1.8-3.4 million/g of soil. In the group composition of microorganisms of natural and cultivated biotopes, bacteria predominate 75.5-74.8 %, actinomycetes, spore-forming bacteria and fungi account for 24.7-24.2 %, respectively; 18.9-24.4 % and 0.3-0.5 %. Changes in the quantitative indicators of microorganisms are closely related to the humus state of the studied soils.
About the Author
V. T. Mammadzade
Institute of Soil Science and Agrochemistry of ANAS
Azerbaijan
Azerbaijan
Baku, st. M. Ragima, 5
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Review
For citations:
Mammadzade V.T. MICROBIOLOGICAL CHARACTERISTICS OF GRAY-BROWN (CHESTNUT) SOILS OF SEMI-HUMID SUBTROPICS OF THE LANKARAN REGION. Soil Science and Agrichemistry. 2022;(2):33-38. (In Russ.) https://doi.org/10.51886/1999-740X_2022_2_33
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