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Title: | LAND RESOURCE INVENTORY AND SOCIO-ECONOMIC STATUS OF FARM HOUSEHOLDS FOR WATERSHED PLANNING AND DEVELOPMENT BALBATTI-5 (4D5A3O1e) MICROWATERSHED Jewargi Taluk, Gulbarga District, Karnataka |
Other Titles: | Not Available |
Authors: | Rajendra Hegde, Ramesh Kumar, S.C., K.V. Niranjana, S. Srinivas, M.Lalitha, B.A. Dhanorkar, R.S. Reddy and S.K. Singh |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR::National Bureau of Soil Survey and Land Use Planning |
Published/ Complete Date: | 2019-12-31 |
Project Code: | 101 |
Keywords: | Details of Soil Survey, Soil constraints, Soil and Water Conservation, Soil Suitability, Economic Land Evaluation, Watershed Planning, Sujala – III Project |
Publisher: | ICAR::National Bureau of Soil Survey and Land Use Planning, Regional Centre, Bengaluru & Watershed Development Department, Government of Karnataka (Sujala-III Project) |
Citation: | Rajendra Hegde, Ramesh Kumar, S.C., K.V. Niranjana, S. Srinivas, M.Lalitha, B.A. Dhanorkar, R.S. Reddy and S.K. Singh (2019). “Land Resource Inventory and Socio- Economic Status of Farm Households for Watershed Planning and Development of Balbatti-5 (4D5A3O1e) Microwatershed, Jewargi Taluk, Gulbarga District, Karnataka”, ICAR-NBSS&LUP Sujala MWS Publ.101, ICAR – NBSS & LUP, RC, Bangalore. p.77 & 30. |
Series/Report no.: | 101; |
Abstract/Description: | The land resource inventory of Balbatti-5 microwatershed was conducted using village cadastral maps and IRS satellite imagery on 1:7920 scale. The false colour composites of IRS imagery were interpreted for physiography and these physiographic delineations were used as base for mapping soils. The soils were studied in several transects and a soil map was prepared with phases of soil series as mapping units. Random checks were made all over the area outside the transects to confirm and validate the soil map unit boundaries. The soil map shows the geographic distribution and extent, characteristics, classification, behaviour and use potentials of the soils in the microwartershed. The present study covers an area of 769 ha in Balbatti-5 microwatershed in Jewargi taluk of Gulbarga district, Karnataka. The climate is semiarid and categorized as drought-prone with an average annual rainfall of 751 mm, of which about 538 mm is received during south–west monsoon, 138 mm during north-east and the remaining 75 mm during the rest of the year. 99 per cent area is covered by soils and 1 per cent is by habitation and waterbodies. The salient findings from the land resource inventory are summarized briefly below. The soils belong to 4 soil series and 5 soil phases (management units) and 3 land use classes. The length of crop growing period is about 150 days starting from the 1st week of June to 1st week of October. From the master soil map, several interpretative and thematic maps like land capability, soil depth, surface soil texture, soil gravelliness, available water capacity, soil slope and soil erosion were generated. Soil fertility status maps for macro and micronutrients were generated based on the surface soil samples collected at every 250 m grid interval. Land suitability for growing 19 major agricultural and horticultural crops were assessed and maps showing the degree of suitability along with the constraints were generated. 99 per cent area is suitable for agriculture and 1per cent is not suitable. About 80 per cent of the soils are deep to very deep (100->150 cm), about 13 per cent is moderately shallow (50-75 cm) and 5 per cent are shallow (25-50 cm) soils. Entire area in the microwatershed has clayey soils at the surface. Entire area has non-gravelly (<15%) soils. About 80 per cent of the area has soils that are very high (>200mm/m) in available water capacity and about 13 per cent medium (101-150 mm/m) and low (51-100 mm/m) in 5 per cent area. Entire area has very gently sloping (1-3%) lands. xvi An area of about 56 per cent has soils that are slightly eroded (e1) and 43 per cent moderately eroded (e2). An area of about 91 per cent has soils that are strongly alkaline soils (pH 8.4-9.0) and 7 per cent very strongly alkaline (>9.0). The Electrical Conductivity (EC) of the soils are dominantly <2 dS m-1indicating that the soils are non-saline. About 21 ha (3%) area is low (<0.5%) in organic carbon, medium (0.5-0.75%) in about 359 ha (47%) and high (>0.75%) in 378 ha (49%) in organic carbon. Major area of 48 per cent has soils that are low (<23 kg/ha), 39 per cent medium (23- 57 kg/ha) and 12 per cent (>57 kg/ha) high in available phosphorus. About 78 per cent high (>337 kg/ha) and 21 per cent medium (145-337 kg/ha) in available potassium. Available sulphur is low (<10 ppm) in about 8 per cent area, medium (10-20 ppm) in 51 per cent and 40 per cent high (>20 ppm). Available boron is low (<0.5 ppm) in about 40 per cent area and medium (0.5-1.0 ppm) in about 58 per cent area. About 99 per cent area is sufficient (>4.5 ppm) and >1 per cent deficient (<4.5 ppm) in available iron. Available manganese and copper are sufficient in all the soils. About 42 per cent area has soils that are deficient (<0.6 ppm) and 57 per cent sufficient (>0.6 ppm) in available zinc. The land suitability for 19 major crops grown in the microwatershed were assessed and the areas that are highly suitable (S1) and moderately suitable (S2) are given below. It is however to be noted that a given soil may be suitable for various crops but what specific crop to be grown may be decided by the farmer looking to his capacity to invest on various inputs, marketing infrastructure, market price and finally the demand and supply position. xvii Land suitability for various crops in the microwatershed Crop Suitability Area in ha (%) Crop Suitability Area in ha (%) Highly suitable (S1) Moderately suitable (S2) Highly suitable (S1) Moderately suitable (S2) Sorghum 615 (80) 103 (13) Guava - 615 (80) Maize - 103(13) Jackfruit - - Red gram - 718 (93) Jamun - 615 (80) Soybean 615 (80) 103(13) Musambi 615 (80) - Bengalgram 718 (93) 40 (5) Lime 615 (80) - Sunflower 615 (80) - Cashew - - Cotton 615 (80) 103 (13) Custard apple 615 (80) 103 (13) Sugarcane - - Amla 615 (80) 103 (13) Mango - - Tamarind - 615 (80) Sapota - 615 (80) Apart from the individual crop suitability, a proposed crop plan has been prepared for the 3 identified LUCs by considering only the highly and moderately suitable lands for different crops and cropping systems with food, fodder, fibre and horticulture crops that helps in maintaining the productivity and ecological balance in the microwatershed. Maintaining soil-health is vital to crop production and conserve soil and land resource base for maintaining ecological balance and to mitigate climate change. For this, several ameliorative measures have been suggested to these problematic soils like saline/alkali, highly eroded, sandy soils etc. Soil and water conservation treatment plan has been prepared that would help in identifying the sites to be treated and also the type of structures required. As part of the greening programme, several tree species have been suggested to be planted in marginal and submarginal lands, field bunds and also in the hillocks, mounds and ridges that would help in supplementing the farm income, provide fodder and fuel, and generate lot of biomass. This would help in maintaining ecological balance and contribute to mitigating climate change. |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Project Report |
Sponsors: | Watershed Development Department, Government of Karnataka (World Bank Funded) Sujala –III Project |
Language: | English |
Name of Journal: | Not Available |
Volume No.: | Not Available |
Page Number: | p.77 & 30. |
Name of the Division/Regional Station: | ICAR::National Bureau of Soil Survey and Land Use Planning, Regional Centre, Bengaluru |
Source, DOI or any other URL: | Not Available |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/40234 |
Appears in Collections: | NRM-NBSSLUP-Publication |
Files in This Item:
File | Description | Size | Format | |
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101.BALBATTI-5 (4D5A3O1e).pdf | 11.98 MB | Adobe PDF | View/Open |
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