Objective: To analyse and map soil micronutrient status using GIS in the transition zone of the NW foothills of the Kathua Shivaliks area.
Methodology: Composite surface soil samples from two hundred and six (206) randomly dispersed locations across the entire district were obtained at a depth of 0-15 cm using the global positioning system due to undulated topography (GPS). To produce prediction maps of the soil properties, the Inverse Distance Weighting (IDW) method was adopted. The digitization and map generation process was done with ArcGIS 10.3.
Results: The usable copper content in the soil of the hilly areas ranges from 0.4 to 14.4 mg kg-1 with a mean value of 3.75 mg kg-1 after soil sample analysis. The zinc content available ranged from 0.25 to 5.60 mg/kg, respectively. The usable surface soil manganese content ranged from 5.60 to 78.10 mg kg-1 with a mean value of 23.97 mg kg-1. The iron content available ranged from 11.30 mg/kg to 92.00 mg/kg with a mean value of 38.57 mg kg-1. In plain areas, the usable copper content in the soil ranges from 2.08 to 34.90 mg kg-1 with a mean of 8.94 mg kg-1. The minimum and maximum values of the copper content available are higher. The zinc content available ranged from 0.25 to 5.60 mg kg-1, respectively. According to the plot, due to elevated soil pH, available zinc is the lowest visualised in plains. The available manganese content of the surface soils ranged from 2.500 to 57.40 mg/kg with a mean value of 27.03 mg kg-1. The iron content available varied from 0 to 66.10 mg kg-1 with a mean value of 41.68 mg kg-1.
Conclusion: The mapping of micronutrients ranging from low to high ranges was performed successfully. The technique was found to be efficient in identifying the availability of micronutrients in the study area, helping policy makers to frame potential fertiliser distribution and application policies.
Please see the link :- https://www.journalirjpac.com/index.php/IRJPAC/article/view/30228
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