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SITUATION ANALYSIS AND RESEARCH PRIORTATION FOR WATERSHED DEVELOPMENT IN GADAG AND KOPPAL DISTRICTS. Team of Scientists from UAS, Dharwad 1. Dr. P.L.Patil; Nodal Officer & Professor & Head Soil Science 2. Dr. G.S.Dasog; Dean (Agri.), AC, Dharwad
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SITUATION ANALYSIS AND RESEARCH PRIORTATION FOR WATERSHED DEVELOPMENT IN GADAG AND KOPPAL DISTRICTS Team of Scientists from UAS, Dharwad 1. Dr. P.L.Patil; Nodal Officer & Professor & Head Soil Science 2. Dr. G.S.Dasog; Dean (Agri.), AC, Dharwad 3. Dr. B.I.Bidari; Professor, Soil Science, 4. Dr. M. Hebbara; Assoc. Professor, Soil Science, 5. Dr. V.B.Kuligod; Assoc. Professor, Soil Science, 6. Dr. S.S.Gundlur; Soil Physicist, Belvatagi 7. Dr. C.B. Meti; Assoc. Professor Agril. Engg,. 8. Dr. G.N.Kulkarni; Assoc. Professor, Agril. Econ, 9. Dr. S.G.Angadi: Assoc. Professor of Horticulture 10.Dr. G.Somanagoudar: Assoc. Professor, Agron, ARS, Annigeri 11. Ms. Geeta Channal; SMS, EEU, Gadag
Total Geographical areas • Gadag-4656 Sq.km • Koppal- 5559 sq.km
Climate Total ; 613 mm Total ; 572 mm
India Karnataka Bhanapur microwatershed Fig.1 :Location of the Study area Koppal District Soil resources of a micro watershed in Koppal District
P5 Location: 15023'30.77" N , 76001'15.24" E Classification : Coarse loamy, mixed, isohyperthermic, Lithic Haplustepts
P8 Location: 15023'10.28" N, 7601'44.23" E Classification : Coarse loamy, mixed, isohyperthermic, medium, Psammantic Haplustalf
P16 Location: 15023'54.18" N 76001'48.49" E Classification : Fine clayey, montmorillonitic, isohyperthermic, Typic Calciustert
Soil Productivity and constraints Table : Average productivity of crops during 2005 and 2006 in Bhanapur Micro-watershed
Fig. : Volumetric soil moisture percentage of Bhanapur microwatershed on 14th July 2006 Fig. : Volumetric soil moisture percentage of Bhanapur microwatershed on 28th June 2006
Fig. : Volumetric soil moisture percentage of Bhanapur microwatershed on 18th August 2006 Fig. : Volumetric soil moisture percentage of Bhanapur microwatershed on 02nd August 2006
Fig. : Volumetric soil moisture percentage of Bhanapur microwatershed on 22nd September 2006 Fig. : Volumetric soil moisture percentage of Bhanapur microwatershed on 06th September 2006
Soil texture Area (ha) Very coarse 154.95 Medium coarse 171.08 119.16 Medium sand Fine sand 87.18 Fine clay 49.59 Total 581.96 Fig. : Soil texture of Bhanapur microwatershed Fig. : Gravel % of soils of Bhanapur microwatershed
Soil depth (cm) Area (ha) Maximum water holding capacity Area (ha) 252.68 Shallow (25-50) Low water retention (0-30%) 308.44 Moderate deep (50-100) 232.79 Medium water retention (31-50%) 166.74 Deep (110+) 96.49 High water retention (>50%) 106.78 Total 581.96 Total 581.96 Fig. Soil Depth of Bhanapur microwatershed Fig. Maximum water holding capacity of soils of Bhanapur microwatershed
Fig. : Soil reaction status of Bhanapur microwatershed Fig. : Salinity status of Bhanapur microwatershed
Fig. : Available nitrogen status of Bhanapur microwatershed Fig. : Available phosphorus status of Bhanapur microwatershed
Fig. : Available potassium status of Bhanapur microwatershed Fig. : Available sulphur status of Bhanapur microwatershed
Fig. : Available iron status of Bhanapur microwatershed Fig. : Available manganese status of Bhanapur microwatershed
Fig. : Available zinc status of Bhanapur microwatershed Fig. : Available copper status of Bhanapur microwatershed
Generally, soil productivity of the watershed was low. Important productivity constraints identified are; Low soil moisture, Low soil depth, Gravelly coarse texture Low organic matter and Deficiency of N, P, S, Zn and Cu.
Demographic details: Population :
RESEARCH PRIORTATION FOR WATERSHED DEVELOPMENT 1.3Land Resource Inventory and GIS Database for Watershed Planning Study of natural resources, evaluating soil resources for prioritization of soil and water conservation and assessing suitability of crops. Identification of various constraints affecting crops productivity and planning for addressing constraints to enhance the productivity of crops.
Research priorities in terms of Horticulture component • Perennial Horticultural components such as fruit crops (Mango, Sapota, Tamarind, Custard apple, amla etc) vegetable crops (curry leaf, drumstick) and perennial species may be introduced for utilizing soil moisture from deeper soil horizons apart from conserving soil and rain water • Mixed dryland orchard systems such as mango/sapota + lime/papaya/custard apple has ample scope in getting early returns with minimum expenditure towards inputs specially labour • Short duration and intensive horticultural activities such as nurseries, cultivation of short duration vegetables such as green leafy and leguminous vegetables can be adopted under watershed areas through which soil physical and chemical properties will be improved. • Drought hardy annual (e.g. Gailardia) and perennial (e.g.Jasmine, chrysanthemum) flower crops and medicinal and aromatic can also be adopted.