Vol. 6, Issue 3 (2018)
Mapping of soil Macro-nutrients in the Kathua District of Jammu Region using GIS approach
Author(s): Vishaw Vikas, Vikas Sharma and Narinder Panotra
Abstract: Macro-nutrients play an important role in plant growth and sustaining productivity. A study was carried out to evaluate and map the spatial distribution of soil macro-nutrients in plains and hilly areas of Kathua district. The study area lies in between 32°17`N to 32°55`N of latitude and 75°70`E to 76°46` E of longitude and experiences wide range of climatic variations from sub-tropical to temperate areas and even alpine in higher regions. The available N content distribution was high in hilly areas of ranging between 160 kg/ha to 564.5 kg/ha. The areas having high organic carbon were found to have high available nitrogen content. The lower areas or areas which are highly cultivated i.e. - areas adjoining Ravi River were found to have low nitrogen content. More than 50 percent of the total area had available P in the range between 3.00 kg/ha to 76.00 kg/ha. A large patch of study area was having Available P content in the medium range. However some hilly parts of hilly areas depicted very high available P content. The value seemed to be very low in some patches of plain areas usually varying in between 3.2 kg/ha to 9.4 kg/ha. Available K in the soil was mainly in the range of 71.00 kg/ha to 791.00 kg/ha. In some portion of hilly terrains showed medium potassium content. In plains where cultivated area is more, the potassium is low due to many cropping patterns and higher yields. Soils of hilly terrains are high in organic matter and therefore are higher in nitrogen. So, there is a problem of Nitrate leaching by heavy rain, resulting in soil acidification. In order to reduce leaching and soil acidification, there is a need to apply nitrogen through organic manures in small amounts often so that plants use all of it, or in organic form such as composted manure. In areas where Phosphorus is in sufficient range doesn’t require any introduction of manures of fertilizers, however where the portion is deficient, manures which contain phosphorus or preferably manure from grain-fed animals which are particularly rich source of Phosphorus should be applied. The Potassium deficient areas can be dealt with supplying Muriate of potash or sulfate of potash which are the most common sources of potassium.
Pages: 2661-2666 | 441 Views 98 Downloads
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How to cite this article:
Vishaw Vikas, Vikas Sharma, Narinder Panotra. Mapping of soil Macro-nutrients in the Kathua District of Jammu Region using GIS approach. Int J Chem Stud 2018;6(3):2661-2666.
