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International Journal of Applied Agricultural & Horticultural Sciences
  • 28 April, 2024
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Language : English
DOI Prefix : 10.37322
P-ISSN : 0974-0775
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Vol. 7 (6) : November-December 2016 issue
Green Farming Vol. 7 (6) : 1414-1418 ; November-December, 2016
Characterization of soils for salinity as influenced by different irrigation water sources in a typical black soil of Northern Karnataka
S. KIRANKUMARa1*, M.S. NAGARAJAb2 and P.R. KALPANAa3
aSujala-III Project, College of Horticulture (UHS, Bagalkot), Bidar – 585 401 (Karnataka)
bDeptt. of Soil Science & Agric. Chemistry, College of Horti., University of Hortic. Sciences, Bagalkot - 587 103 (K.K.)
Designation :  
1,3SRF *(kiruhorti@gmail.com), 2Associate Professor
Subject : Soil Science & Agric. Chemistry; Soil Health & Soil Conservation Engg.
Paper No. : P-4831
Total Pages : 5
Received : 15 February 2016
Revised accepted : 02 November 2016
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Citation :

S. KIRANKUMAR, M.S. NAGARAJA and P.R. KALPANA. 2016. Characterization of soils for salinity as influenced by different irrigation water sources in a typical black soil of Northern Karnataka. Green Farming Vol. 7 (6) : 1414-1418 ; November-December, 2016

ABSTRACT
An extensive soil survey was conducted to characterize soils irrigated with different water sources for their salinity aspects in black soils of Mudhol Taluka of Bagalkot district. Soil survey interpretation revealed that the chemical properties of soils varied greatly up on different sources of irrigation water. The pH of soils ranged from slightly alkaline to high alkalinity and there were no significant differences among soils studied. However, ECe and their respective cations and anions differed significantly among soils after irrigations with different sources. In general, the concentration of ions were observed in the order of lift = lift + borewell > borewell = canal + borewell > dryland soils. The cations in soil-water extract were found in the order of Na+ > Ca2+ > Mg2+ > K+ while, the anions were in the order of Cl- > HCO3- > SO42- > CO32-. To understand the interaction effects of ion simple correlation studies made it shows that the soil pH was significantly correlated with CO32- and HCO3- contents. The ECe exhibited positive and high significant correlation values with all studied ions except CO32- (negatively significant) and HCO3- (non-significant). Correlation values of cations were found in the order - Na+ > Mg2+ > Ca2+ > K+ while, anions are Cl- > SO42- > CO32- > HCO3-. Though, the ECe and cations/anions values in soil-water extracts increased significantly with irrigations and risk of salinity was observed only in irrigated soils compared to dryland soils.
Key words :
Black soils, Characterization, Chemical properties, Irrigation water, Soil salinity.