LAND RESOURCE INVENTORY AND SOCIO-ECONOMIC STATUS OF FARM HOUSEHOLDS FOR WATERSHED PLANNING AND DEVELOPMENT MAVANAHALLI-1 (4D5B1Q1d) MICROWATERSHED Yadgir Taluk and District, Karnataka

Abstract

The land resource inventory of Mavanahalli-1Microwatershed 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 the 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, behavior and use potentials of the soils in the microwatershed. The present study covers an area of 361 ha in Yadgir taluk & district, Karnataka. The climate is semiarid and categorized as drought-prone with an average annual rainfall of 866 mm, of which about 652 mm is received during south-west monsoon, 138 mm during north-east and the remaining 76 mm during the rest of the year. An area of 403 ha in the microwatershed is covered by soils, 5 ha area is covered by railway line, 323 ha area is covered by mining/industrial and 31 ha area is covered by others (habitation and water body). The salient findings from the land resource inventory are summarized briefly below.  The soils belong to 8 soil series and 8 soil phases (management units) and 5 land management units.  The length of crop growing period is about 120-150 days starting from 1st week of June to 4th 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 320 m grid interval.  Land suitability for growing 29 major agricultural and horticultural crops was assessed and maps showing the degree of suitability along with constraints were generated.  About 336 ha area in the microwatershed is suitable for agriculture.  About 12 per cent of area is shallow (25-50 cm), <1 per cent of area is moderately shallow (50-75 cm), 32 per cent of area is moderately deep (75-100 cm), 33 per cent of area is deep (100 - 150 cm) and 16 per cent of area is very deep (>150 cm).  About 12 per cent area in the microwatershed has sandy soils, 19 per cent loamy soils and 62 per cent clayey soils at the surface.  An area of 50 per cent is non gravelly (<15%), 25 per cent area is gravelly (15- 35%) and 19 per cent area is very gravelly (35-60%) in the microwatershed.  About 49 per cent of area is very high (>200 mm/m) in available water capacity, 32 per cent area is medium (101-150 mm/m) and 13 per cent of area is very low (<50 mm/m).  Entire area in the microwatershed has very gently sloping (1-3% slope) lands.  An area of about 82 per cent is moderately (e2) eroded and 11 per cent of area is slightly (e1) eroded.  About 45 per cent area is moderately alkaline (pH 7.8-8.4) and 48 per cent area is strongly alkaline (pH 8.4-9.0) in soil reaction.  The Electrical Conductivity (EC) is <2 dsm-1indicating that the soils are nonsaline in the entire area of the microwatershed.  An area of 35 per cent is high (>0.75%), 56 per cent area is medium (0.5-0.75%) and 2 per cent area is low (<0.50%) in organic carbon content.  An area of about 28 per cent is medium (23-57 kg/ha), 4 per cent area is high (>57 kg/ha) and 61 per cent of area is low (<23 kg/ha) in available phosphorus content in the microwatershed.  An area of about 7 per cent is medium (145-337 kg/ha) and 86 per cent of area is high (>337 kg/ha) in available potassium content.  Available sulphur content is low (<10 ppm) the entire area of the microwatershed.  Available boron is medium (0.5-0.1 ppm) in an area of 42 per cent and low (<0.5 ppm) in an area of 52 per cent of the microwatershed.  Available iron is sufficient (>4.5 ppm) in an area of 39 per cent and deficient (<4.5 ppm) in an area of 55 per cent of the microwatershed.  Available manganese and copper are sufficient in all the soils of the microwatershed.  Available zinc is deficient (<0.6 ppm) in the entire area of the microwatershed.  The land suitability for 29 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. 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 67 (19) 137 (38) Guava - 67 (19) Maize 67 (19) 137 (38) Sapota - 67 (19) Bajra 67 (19) 137 (38) Pomegranate - 146 (40) Groundnut - 67 (19) Musambi - 146 (40) Sunflower - 146 (40) Lime - 146 (40) Redgram - 204 (57) Amla 67 (19) - Bengal gram - 137 (38) Cashew - - Cotton - 146 (40) Jackfruit - 67 (19) Chilli - 146 (40) Jamun - - Tomato - 67 (19) Custard apple - 146 (40) Brinjal - 67 (19) Tamarind - - Onion - 67 (19) Mulberry - 67 (19) Bhendi - 146 (40) Marigold - 146 (40) Drumstick - 67 (19) Chrysanthemum - 146 (40) Mango - -  Apart from the individual crop suitability, a proposed crop plan has been prepared for the identified LMUs by considering only the highly and moderately suitable lands for different crops and cropping systems with food, fodder, fibre and other horticulture crops.  Maintaining soil-health is vital for 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 for 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. This would help in not only supplementing the farm income but also provide fodder and fuel and generate lot of biomass which would help in maintaining an ecological balance and also contribute to mitigating the climate change. FINDINGS OF THE SOCIO-ECONOMIC SURVEY  The survey was conducted in Mavanahalli-1 is located at North latitude 160 31’ 9.304” and 160 29' 12.155" and East longitude 770 19’ 56.248'' and 770 19’ 1.502” covering an area of about 343.08 ha coming under Mavinahalli and Kadechoora villages of Yadagiri taluk.  Socio-economic analysis of Mavanahalli-1 micro watersheds of Kadechur subwatershed, Yadgiri taluk & District indicated that, out of the total sample of 35 total respondents, 3 (8.57 %) were marginal, 20 (57.14%)were small, 5 (14.29 %) were Semi medium and 2 (5.71 %) were medium farmers.  The population characteristics of households indicated that, there were 110 (60.44%) men and 72 (39.56 %) were women.  Majority of the respondents (50.00%) were in the age group of 16-35 years.  Education level of the sample households indicated that, there were 40.66 per cent illiterates, 1.10 percent were functional literates, 57.69 per cent pre university education and 5.49 per cent attained graduation.  About, 82.86 per cent of household heads practicing agriculture and 14.29 per cent of the household heads were engaged as agricultural labourers.  Agriculture was the major occupation for 62.09 per cent of the household members.  In the study area and 68.57 per cent of the households possess katcha house.  The durable assets owned by the households showed that, 82.86 per cent possess TV, 82.86 per cent possess mixer grinder, 94.29 per cent possess mobile phones and 20.00 per cent possess motor cycles.  Farm implements owned by the households indicated that, 25.71 per cent of the households possess plough, 5.71 per cent possess tractor, 20.00 per cent possess bullock cart and 14.29 per cent possess sprayer.  Regarding livestock possession by the households, 8.57 per cent possess local cow.  The average labour availability in the study area showed that, own labour men available in the micro watershed was 1.69, women available in the micro watershed was 1.60, hired labour (men) available was 6.03 and hired labour (women) available was 7.86.  Further, 8.57 per cent of the households opined that hired labour was inadequate during the agricultural season.  In the study area, about 9.34 per cent of the respondents migrated from the micro watershed in search of jobs with an average distance of 1114.17 kms for about 4.00 months.  Out of the total land holding of the sample respondents 89.09 per cent (48.98 ha) of the area is under dry condition and the remaining 10.91 per cent area is irrigated land. 2  There were 3.00 live bore wells and 4.00 dry bore wells among the sampled households.  Bore/open well was the major source of irrigation for 8.57 per cent of the households.  The major crops grown by sample farmers are Red gram, Cotton, Groundnut and Sorghum and cropping intensity was recorded as 91.38 per cent.  Out of the sample households 100.00 percent possessed bank account and 100.00 per cent of them have savings in the account.  About 34.29 per cent of the respondents borrowed credit from various sources.  Among the credit borrowed by households, 16.67 per cent have borrowed loan from commercial banks and 158.33 per cent from co-operative/Grameena bank.  Majority of the respondents (100.00%) have borrowed loan for agriculture purpose.  Regarding the opinion on institutional sources of credit, 77.27 per cent of the households opined that credit helped to perform timely agricultural operations.  The per hectare cost of cultivation for Red gram, Cotton, Groundnut and Sorghum was Rs.56915.69 , 33986.70, 39587.88 and 28264.01 with benefit cost ratio of 1:0.70, 1: 1.20, 1: 1.10 and 1: 1.30 respectively.  Further, 60.00 per cent of the households opined that dry fodder was adequate and 17.14 per cent of the households have opined that the green fodder was adequate.  The average annual gross income of the farmers was Rs. 81191.43 in microwatershed, of which Rs. 49574.29 comes from agriculture.  Sampled households have grown 8 horticulture trees and 32 forestry trees together in the fields and back yards.  About 45.71 per cent of the households shown interest to cultivate horticultural crops.  Households have an average investment capacity of Rs. 11685.71 for land development and Rs. 371.43 for irrigation facility.  Source of funds for additional investment is concerned, 77.14 per cent depends on own funds and 2.86 per cent depends on bank loan for land development activities.  Regarding marketing channels, 80.00 per cent of the households have sold agricultural produce to the local/village merchants.  Further, 2.86 per cent of the households have used tractor for the transport of agriculture commodity.  Majority of the farmers (85.71%) have experienced soil and water erosion problems in the watershed and 82.86 per cent of the households were interested towards soil testing.  Fire was the major source of fuel for domestic use for 71.43 per cent of the households and 22.86 per cent households has LPG connection. 3  Piped supply was the major source for drinking water for 74.29 per cent of the households.  Electricity was the major source of light for 97.14 per cent of the households.  In the study area, 34.29 per cent of the households possess toilet facility.  Regarding possession of PDS card, 94.29 per cent of the households possessed BPL card, 2.86 per cent of the household’s possessed APL card and 0.00 per cent of the household’s were not having ration cards.  Households opined that, the requirement of cereals (94.29%), pulses (88.57%) and oilseeds (57.14%) are adequate for consumption.  Farming constraints experienced by households in the micro watersheds were lower fertility status of the soil (82.86%) wild animal menace on farm field (85.71%), frequent incidence of pest and diseases (74.29%), inadequacy of irrigation water (62.86%), high cost of fertilizers and plant protection chemicals (60.00%), high rate of interest on credit (42.86%), low price for the agricultural commodities (60.00%), lack of marketing facilities in the area (40.00%), inadequate extension services (45.71%), lack of transport for safe transport of the agricultural produce to the market (51.43%), Less rainfall (80.00%) and Source of Agri-technology information (Newspaper/ TV/Mobile) (25.71%).