“EVALUATION OF ORGANIC CARBON STATUS IN THE SOILS OF SAURASHTRA REGION” 3495
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Date
2022-08
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JAU JUNAGADH
Abstract
A field experiment entitled “Evaluation of Organic Carbon Status in the soils of
Saurashtra Region” was carried out during summer season of 2021. Samples were
collected from each taluka of different districts of Saurashtra region and analyzed at
Department of Soil science and agricultural chemistry, College of Agriculture,
Junagadh Agricultural University, Junagadh.
On the basis of analyzed data of soil samples, collected from different district
of Saurashtra region of Gujarat, it can be concluded that soil of Saurashtra region was
medium in Organic Carbon status with mean value of 0.57 per cent, whereas Porbandar
district found highest organic Carbon percentage with 0.82 per cent value and
Surendranagar district found lowest organic carbon percentage with 0.44 per cent.
The soils of Saurashtra region were calcareous in nature and alkaline in reaction.
The pH2.5 mean value of Saurashtra region was 8.0, whereas Rajkot, Porbandar and
Junagadh district show the lowest pH2.5 value and Amreli district show the highest pH2.5
value from soil of Saurashtra region. The EC2.5 of soil samples of Saurashtra region
was found with men value of 0.53 dS/m, whereas the lowest EC2.5 was found in Morbi
District and the highest EC2.5 was found in Porbandar district.
According to Nutrient index value, Porbandar, Gir-Somnath and Devbhoomi
Dwarka district covered very high area of having Organic carbon per cent. Bhavnagar,
Amreli, Rajkot and Surendranagar found very low organic carbon per cent area.
ABSTRACT
Junagadh and Jamnagar covered medium area of having Organic carbon per cent. Morbi
district covered high area of having Organic carbon per cent.
The overall highly significant correlation of SOC with EC2.5 (r = -0.290**) and
SOC with pH2.5 (r = 0.268**) were observed in Rajkot District. In Junagadh and Morbi
district, there was significant correlation found between SOC and EC2.5 (r=-0.208) and
(r = 0.335).
Overall organic matter and Soil Nitrogen range were 0.19-2.69 per cent and
0.018-0.414 in soil of Saurashtra region. Maximum mean value of organic matter and
soil nitrogen were found in Porbandar district (1.41%, 0.071%) and minimum mean
value of organic matter and nitrogen were found in Surendranagar district (0.76%,
0.038%)