National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Soil acidity is also the major problem of the red and lateritic soils. Acidification causes the loss of base cations and increases aluminium saturation and as a result, decrease in crop yields. Among the different nature of soil acidity, pH dependent acidity (pHDA) and total potential acidity (TPA) are very important in relation to nutrient supplying capacity of the soil. To study depth-wise and land use-wise variation of pH dependent acidity (pHDA) and total potential acidity (TPA) and its relationship with soil properties, fifty-four representative soil samples were collected from three depths (viz., 0-20 cm, 20- 40 cm and 40-60 cm) from 6 various land uses viz., forest land, cultivated rice land, cultivated rice-potato land, orchard land, pasture land and fallow land of Birbhum district of lateritic zone of West Bengal. The soil samples were analyzed for pHDA and TPA and soil properties like pH, EC, organic C, bulk density, particle density, available N, P2O5 and K2O using standard methodology. It was observed that there was significant depth-wise and land use-wise variation of pHDA and TPA. In all the land uses, pHDA and TPA was decreased with depth. The mean pHDA irrespective of soil depths was highest in cultivated rice-potato land and lowest in pasture land. The mean TPA irrespective of soil depths was highest in cultivated rice-potato land and lowest in pasture land. TPA and pHDA were significantly positively and negatively correlated with OC and BD of soil respectively.
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