Soil fertility mapping in Dindur sub-watershed of Karnataka for site specific recommendations

Patil, PS; Kuligod, V. B.; Gundlur, S. S.; Katti, Jahnavi; Nagaral, Irappa N.; Shikrashetti, P.; Geetanjali, H. M.; Dasog, G. S.

doi:10.5958/0974-0228.2016.00050.5

Cited by 26 publications

(31 citation statements)

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“…The available S is the function of organic carbon as reported by Kour and Jalali [20]. It was reported that there is wide spread deficiencies of S, B and Zn in drylands of Karnataka [31,38,41], but the soils in the microwatershed are having medium status of S and above critical limit of B status. Similar kinds of observations were reported in various parts of Karnataka [24,33,35,42].…”

Section: Discussionmentioning

confidence: 95%

Spatial variability and mapping of selected soil properties in Kaligaudanahalli Microwatershed, Gundlupet Taluk, Chamarajanagar District, under hot semi arid agrosubregion of Central Karnataka Plateau, India

et al. 2019

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The soil attributes of spatially structured data were often measured in Central plateau, of Karnataka, but often poorly defined spatial variability of soil attributes important for land management under hot semiarid agroecological environment. The Kaligaudanahalli microwatershed (612 ha) divided into 250 m × 250 m square grids using ArcGIS and collected surface soils (0-15 cm) at 89 locations. The results of cluster analysis with average linkage method revealed four soil typologies viz., slightly alkaline, sandy clay loam texture showing high coefficient of variation for all soil variables in cluster-I, but neutral, sandy clay loam with high variability for DTPA-extractable Cu in cluster-II, moderately alkaline sandy clay loam to clay texture with high variability for EC, OC, available K 2 O, B and Cu for cluster-III and IV. The study concluded that the measured soil properties in regular gird sampling at given scale were enough to capture spatial dependence using ordinary and cokriging techniques and in deriving thematic maps for efficient soil management strategies at watershed level. The results of spatial dependence of each soil property, using ordinary kriging showed that there is strong spatial dependence of pH, EC, K 2 O, B, Cu, Fe and Mn with nugget-to-sill ratio [(C 0 /C 0 + C)] less than 0.25 showing strong spatial distribution where DTPA-extractable Zn had a nugget/sill more than 0.75, displaying a weak spatial autocorrelation. The results showed that cokriging is the best fit and strongly correlated with EC, P 2 O 5 , K 2 O, Fe and Mn using pH as ancillary variable over ordinary kriging to derive thematic maps.

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Section: Discussionmentioning

confidence: 95%

Spatial variability and mapping of selected soil properties in Kaligaudanahalli Microwatershed, Gundlupet Taluk, Chamarajanagar District, under hot semi arid agrosubregion of Central Karnataka Plateau, India

et al. 2019

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“…Therefore, it is necessary to develop a sustainable land management system for the watersheds that does not cause or at least prevent further degradation of such valuable resources [2]. The challenges posed by the continuing degradation and declining factor productivity of the resource base are very site specific and can be tackled only by addressing the concerned issues at the farm or watershed level by evolving rational, site specific and viable land use options suitable for each and every land holding at the village or watershed level [2,3]. The required data for farm level planning can be obtained by carrying out LRI that describes and characterizes the nature of land resources, their constraints, inherent potential and suitability for various land-based rural enterprises, crops and other uses for preparing location-specific action plans [2].…”

Section: Introductionmentioning

confidence: 99%

“…The required data for farm level planning can be obtained by carrying out LRI that describes and characterizes the nature of land resources, their constraints, inherent potential and suitability for various land-based rural enterprises, crops and other uses for preparing location-specific action plans [2]. It is with this objective that the Watershed Development Department of Karnataka has initiated Sujala-III Project funded by the World Bank for the planning and development of watersheds on scientific basis in eleven selected districts of Karnataka covering an area of 14.06 lakh ha across 2534 microwatersheds benefitting about 9 lakh households by adopting the modern methods of Remote Sensing (RS) and GIS for generating land resource information at farm level [2,3].…”

Section: Introductionmentioning

confidence: 99%

Land Resource Inventory (LRI) for Sustainable Watershed Development-A Case Study of Bisarahalli-1 Microwatershed of Semiarid Region of Koppal District, Karnataka, India

Niranjana

Kumar

Hegde

et al. 2021

IJECC

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A land resource inventory (LRI) of Bisarahalli-1 microwatershed was located in the central part of northern Karnataka in semiarid region of Koppal taluk and district. A case study was taken under Sujala III project sponsored by the Watershed Development Department of Karnataka and funded by the World Bank. The analysis and interpretation of the spatial and non-spatial database generated has revealed that most of the areas suffer from major problems. In most of the areas, very gently sloping and alkalinity affected even up to 80% of the microwatershed area followed by gravelly and low available water capacity, thus reducing the production potential and crop choices. The soils are either moderately or marginally suited for growing most of the agricultural and horticultural crops. By interfacing land resource data with Remote Sensing, GIS and GPS, different management scenarios were analysed to arrive at the best management alternatives (optimum land use plans) that would be most suitable. This data handling system will be useful for making land use decisions and providing proactive advice to farmers on a real time basis protecting the health of natural resources.

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“…Soil fertility mapping with the use of GIS and remote sensing (RS) data helps to evaluate the nutrients status in the soil concerning the land use/cover and different physiographic units (Binita, Dasog and Patil, 2010). Soil fertility mapping and its spatial distribution is also an important requirement for site-specific nutrient management and farming practices (Patil et al, 2016). For the proper utilization of the agricultural land, crop production opportunities and constraints, land suitability and proper land use planning soil fertility mapping are essential (Rawal et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Use of GIS in soil fertility mapping of Rapti Municipality, Chitwan, Nepal

Oli¹,

Lamichhane²,

Oli³

2020

JAAB

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Mapping the spatial distribution of soil fertility in a particular area gives an idea about the nutrient content in the soil which plays an im-portant role in fertilizer recommendation, sustainable soil manage-ment, integrated plant nutrient management, landuse planning, and site-specific nutrient management (SSNM). A study was carried out to assess the soil fertility status of the Rapti Municipality, Chitwan, Ne-pal. A total of 120 soil samples was collected based on land use, slope, and aspects with the useof Google Earth Pro (GEP) and ArcGIS. Based on the soil test report spatial variation of soil texture, soil pH, total nitrogen, available phosphorous, and potassium of the study area was prepared. The majority of the study area (57.11%) has sandy clay soils. The soil pH was very strongly acidic to slightly alkaline with pH values ranging from 4.8 to 8.0. Soil organic matter (1.94-3.75%), total nitrogen (0.097-0.187%), available phosphorous(51.03-270.10 kgha-1), and available potassium (169.87-358.68 kgha-1) in the soil are within the range of medium to high in the study area. To maintain this nutrient status, the use of organic manure, reduced use of chemical fertilizers, and different soil management practices should be adopted in this area.

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Soil fertility mapping in Dindur sub-watershed of Karnataka for site specific recommendations

Cited by 26 publications

References 0 publications

Spatial variability and mapping of selected soil properties in Kaligaudanahalli Microwatershed, Gundlupet Taluk, Chamarajanagar District, under hot semi arid agrosubregion of Central Karnataka Plateau, India

Spatial variability and mapping of selected soil properties in Kaligaudanahalli Microwatershed, Gundlupet Taluk, Chamarajanagar District, under hot semi arid agrosubregion of Central Karnataka Plateau, India

Land Resource Inventory (LRI) for Sustainable Watershed Development-A Case Study of Bisarahalli-1 Microwatershed of Semiarid Region of Koppal District, Karnataka, India

Use of GIS in soil fertility mapping of Rapti Municipality, Chitwan, Nepal

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