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Long-term lowland rice and arable cropping effects on carbon and nitrogen status of some semi-arid tropical soils

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Title Long-term lowland rice and arable cropping effects on carbon and nitrogen status of some semi-arid tropical soils
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Creator Sahrawat, K.L., Bhattacharyya, T., Wani, S.P., Chandran, P., Ray, S.K. et al.
 
Subject Arable systems, lowland rice, natural vegetation, nitrogen, pedoenvironment.
 
Description Not Available
Samples of surface (0–30 cm) soils were collected from
eight sites in the semi-arid tropical regions of India to
evaluate and compare the long-term effects of lowland
rice or paddy and non-rice or arable systems on soil
organic C (SOC), soil inorganic C (SIC) and total N
status. The results showed that soil samples from sites
under lowland rice double cropping system had greater
organic C and total N content than those from soils
under rice in rotation with upland crop or under other
arable systems. The SOC : N ratio was wider in soil
samples from sites under lowland rice compared to
those under other arable systems, which had lower
C : N ratios. Samples from soils under lowland rice
system tended to have a narrower SIC : N ratio than
those under arable systems, indicating a better pedoenvironment
under paddy rice. Our results support
earlier findings that sites under continuous wetland
rice cropping accumulate organic matter and contain
higher soil organic matter compared to the sites under
other arable systems.
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Date 2020-05-22T13:46:44Z
2020-05-22T13:46:44Z
2005-09-15
 
Type Research Paper
 
Identifier Sahrawat, K.L., Bhattacharyya, T., Wani, S.P., Chandran, P., Ray, S.K., Pal, D.K. and Padmaja, K.V. (2005). Long-term low-land rice and arable cropping effects on carbon and nitrogen status of some semi-arid tropical soils. Current Science. 89(12), 25 December, 2159-2163.
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http://krishi.icar.gov.in/jspui/handle/123456789/36155
 
Language English
 
Relation Not Available;
 
Publisher Not Available