Characterization and Classification of Soils of A Microwatershed on Basalt Parent Rock in Northern Transition Zone of Karnataka
| dc.contributor.advisor | P.L. Patil | |
| dc.contributor.author | Manoj Kumar Dabi | |
| dc.date.accessioned | 2016-11-12T13:37:41Z | |
| dc.date.available | 2016-11-12T13:37:41Z | |
| dc.date.issued | 2011 | |
| dc.description.abstract | A study was undertaken to characterize and classify soils of a microwatershed in northern transition zone of Karnataka to assess land capability and soil-site suitability for irrigation and crops with special objective to study fertility constraints by GIS techniques. The microwatershed has topographic variations with slope ranging from 1 to 15%. Ten pedons representing the microwatershed were characterized, classified and assessed for land capability and suitability for crops. Soils were shallow to deep, dark reddish brown to very dark greyish brown, granular to sub-angular blocky in structure, excessive to poorly drained, slightly acidic to slightly alkaline (pH, 6.22- 8.42), non-saline (EC, 0.20-1.03 dS m-1), low to high in organic carbon (1.3 -11.5 g kg-1) and low to moderate in CEC (5.12-66.31 cmol (p+) kg-1) with wide textural variations (extremely gravelly sand to clay) with depth. Argillic horizon and slickensides were prevalent in pedons of red and black soils, respectively. According to Soil Taxonomy, out of ten pedons, three were Lithic Ustorthents, Typic Haplustepts and Typic Haplustalfs while others were Typic Haplusterts at sub-group level. Five soil series were identified and mapped into ten mapping units which were evaluated for land capability, irrigability and soil-site suitability for crops. Land capability subclasses in the study area were III, IV and VII with limitations of texture, drainage, fertility and topography. Land irrigability classes were currently unsuitable to marginally suitable with limitations of topography and texture. No land was highly suitable for crops. Majority of the crops were moderately to marginally suitable and few were currently and potentially unsuitable. Assessment of soil fertility status revealed that, major area was high in organic carbon and available nitrogen. Available P ranged from low to medium in status. The microwatershed was rich in available potassium except hill-tops. Entire area was high in Cu, Fe and Mn but low in available S and Zn. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/85233 | |
| dc.publisher | UAS, Dharwad | en_US |
| dc.research.problem | Characterization and Classification of Soils of A Microwatershed on Basalt Parent Rock in Northern Transition Zone of Karnataka | en_US |
| dc.sub | Soil Science and Agriculture Chemistry | en_US |
| dc.theme | Characterization and Classification of Soils of A Microwatershed on Basalt Parent Rock in Northern Transition Zone of Karnataka | en_US |
| dc.title | Characterization and Classification of Soils of A Microwatershed on Basalt Parent Rock in Northern Transition Zone of Karnataka | en_US |
| dc.type | Thesis | en_US |