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Physical and Chemical Properties of Red and Black Soils of Selected Benchmark Spots for Carbon Sequestration Studies in Semi-Arid Tropics of India : Global Theme on Agroecosystems Report no. 35

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Title Physical and Chemical Properties of
Red and Black Soils of Selected Benchmark
Spots for Carbon Sequestration Studies in
Semi-Arid Tropics of India
: Global Theme on Agroecosystems
Report no. 35
 
Creator Bhattacharyya, T
Chandran, P
Ray, S K
Mandal, C
Pal, D K
Venugopalan, M V
Durge, S L
Srivastava, P
Dubey, P N
Kamble, G K
Sharma, R P
Wani, S P
Rego, T J
Pathak, P
Ramesh, V
Manna, M C
Sahrawat, K L
 
Subject Soil Science
Agriculture-Farming, Production, Technology, Economics
 
Description Physical (nine characteristics) and chemical (14) properties of red and black soils are described: sand, silt, clay, fine clay,
BD, COLE, HC (hydraulic conductivity) and WDC; pH (H2O and KCl), EC, OC, CaCO3, clay CO3, extractable Ca,
Mg, Na, K, CEC, clay CEC, BS and ESP are described in three ecosystems, namely sub-humid (moist and dry) [SH (m)
and SH (d)], semi-arid (moist and dry) [SA (m) and SA (d)] and arid in SAT, India.
Clay contents vary between 30% in arid system to 82% in sub-humid (dry) system and 79% in semi-arid (dry) system.
The red soils contain 8–-55% clay. Fine clay ( wasteland. Surface soils of agricultural and horticultural systems store higher SIC as
compared to other systems. The surface soils of semi-arid (moist) show higher SOC under agricultural system due to
inclusion of sun hemp for green manuring in crop rotation. The average SOC values follow the trend of SA (m) (0.825%)
> SH (d) (0.804%) > SH (m) (0.642%) > SA (d) (0.633%) > arid (0.594%) for black soils under agricultural system.
The values of SOC follow the trend of SH (m) (1.35) > SA (d) (0.84) > SA (m) (0.70) for the red soils used for
cultivation.
The level of SIC values in surface soils under agricultural system followed the trend of arid (2.34%) > SH (d) (1.06%)
> SA (m) (0.99%) > SA (d) (0.94%) > SH (m) (0.54%) for black soils. In red soils, CaCO3 in general is not found
except in soils of semi-arid (dry) bioclimatic system.
The SOC in surface horizon under agricultural systems shows higher values for cereal-based system (0.79%), followed
by soybean systems (0.70%) and cotton-based systems (0.68%). Interestingly, the SIC values have been found to be the
highest in cotton-based systems (1.53%), followed by soybean-based systems (0.66%) and cereal-based systems (0.29%).
This trend is opposite to that of the corresponding SOC values.
With the help of data generated, 14 systems (five in cotton, three in soybean, four in cereals, one in horticulture and
one under forest) have been identified as ideal for organic carbon sequestration, keeping in view the existing level of
management practices vis-à-vis soil health.
 
Publisher International Crops Research Institute for the Semi-Arid Tropics
 
Date 2008
 
Type Monograph
NonPeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/2331/1/119_2007_GTAE35_phy_and_chem_prop.pdf
Bhattacharyya, T and Chandran, P and Ray, S K and Mandal, C and Pal, D K and Venugopalan, M V and Durge, S L and Srivastava, P and Dubey, P N and Kamble, G K and Sharma, R P and Wani, S P and Rego, T J and Pathak, P and Ramesh, V and Manna, M C and Sahrawat, K L (2008) Physical and Chemical Properties of Red and Black Soils of Selected Benchmark Spots for Carbon Sequestration Studies in Semi-Arid Tropics of India : Global Theme on Agroecosystems Report no. 35. Monograph. International Crops Research Institute for the Semi-Arid Tropics , Patancheru, Andhra Pradesh, India.