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Characterization and classification of sols and land suitability of a micro - watershed in Hanagal taluk

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Title Characterization and classification of sols and land suitability of a micro - watershed in Hanagal taluk
 
Creator M.Madhan.Mohan
 
Contributor G.S.Dasog
 
Subject Soil Science And Agricultural Chemistry
 
Description Ten Typical pedons representing upland, midland and lowland forms in a microwatershed
of Hanagal taluk in Haveri district were studied for their morphological
characteristics and physico-chemical properties and suitability for locally preferred crops.
The soils were deep to very deep (100-140+ cm), light olive brown to dark grayish brown
(2.5 Y – 10 YR), excessive to poorly drained, moderately acidic to slightly alkaline (5.02 –
8.11), low to high in organic carbon (0.5 – 13.2 g/kg), low to medium in CEC (6.9 – 38.4
cmol(p+)/kg), moderately to high base saturated and sandy loam to sandy clay with variations
in relation to physiography. The surface soils are low in available nitrogen (63 – 280 kg/ha),
low to medium in available phosphorus (10.1 – 42.0 kg/ha), low to high in available
potassium (97 – 331 kg/ha) and low to medium in available sulphur (6.4 – 18.4 ppm).
The pedons 2, 5 of uplands exhibit the development of argillic horizon (Bt). The
pedons on midlands and lowlands have cambic horizon (Bw), classified as Alfisols and
Inceptisols, respectively. At family level, P2 and P5 classified as fine loamy, mixed,
isohyperthermic, Typic Haplustalfs and fine loamy, mixed, isohyperthermic, Inceptic
Haplustalfs, respectively. The lowlands (P8, P9, P10), midlands (P6, P7) and uplands (P1, P3,
P4) classified as fine, mixed, isohyperthermic Typic Haplustalfs.
The major soil-site characteristics of the landscapes matched with the criteria for land
capability classification and grouped into three land capability sub-classes viz., IIIsw, IIIsf
and IVw. According to soil-site evaluation, the lowlands were moderately suitable for wheat,
maize, cotton, soybean, sorghum, paddy, not suitable for groundnut, chilli and sunflower. The
uplands marginally were suitable due to slope factor, midlands moderately suitable for wheat,
maize, soybean, sorghum, groundnut and sunflower but not suitable for chilli, paddy and
cotton.
 
Date 2016-10-28T13:08:57Z
2016-10-28T13:08:57Z
2008
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/82704
 
Format application/pdf
 
Publisher UAS, Dharwad