Open AccessSoil carbon pool under organic and conventional crop production system of semi arid tropics
Author(s) -
D. Udhaya Nandhini,
E. Somasundaram,
S. Somasundaram,
K. Arulmozhiselvan
Publication year - 2021
Publication title -
bangladesh journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.152
H-Index - 17
eISSN - 2079-9926
pISSN - 0253-5416
DOI - 10.3329/bjb.v50i1.52674
Subject(s) - total organic carbon , environmental science , soil water , mineralization (soil science) , soil carbon , organic matter , agronomy , tropics , soil organic matter , arid , biomass (ecology) , environmental chemistry , chemistry , soil science , biology , ecology , organic chemistry
Regardless of land use, the results indicated significant differences in all the studied parameters. Total % SOC ranged from 0.52 to 0.72 for conventional farm samples (mean 0.62%) and 0.63 to 1.59 for the organic samples (mean 1.19). Bulk density (g/cc) ranged from 0.43 to 0.81 (mean 0. 62) for conventional and 0.17 to 0.28 (mean 0.20) organic farm soils. Organic manures increased microbial biomass carbon by 117% and dissolved organic carbon (DOC) concentration by 181% over conventional farming. The results suggested that organic matter is better protected in organic soils and are consequently less vulnerable to mineralization.