Characterization and classification of sols and land suitability of a micro - watershed in Hanagal taluk
KrishiKosh
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Title |
Characterization and classification of sols and land suitability of a micro - watershed in Hanagal taluk
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Creator |
M.Madhan.Mohan
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Contributor |
G.S.Dasog
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Subject |
Soil Science And Agricultural Chemistry
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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. |
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Date |
2016-10-28T13:08:57Z
2016-10-28T13:08:57Z 2008 |
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Type |
Thesis
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Identifier |
http://krishikosh.egranth.ac.in/handle/1/82704
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Format |
application/pdf
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Publisher |
UAS, Dharwad
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