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Aparajita Nandi , S. Barari

Abstract

Liming is important for the management of lateritic acid soils, for it has considerable influence on growth of plants and soil environment, besides neutralising soil acidity. In acid soil the availability of Ca⁺², Mg² and P decreases, where as that of Al⁺³, Fe⁺² and Mn⁺² increases. Thus the nutrient availability is closely related to soil p^H. A Glasshouse experiment was carrried out to find out the effect of liming with inorganic fertilizer and organic manure on two forest plant types i.e. Eucalyptus tereticornis and Shorea robusta. As per the preliminary analysis in Glasshouse condition the growth of two plant types was found significant in limed soil with organic manure and inorganic fertilizer. The initial start i.e. both ischolar_main and shoot development may help for better establishment of forest spp.

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Aparajita Nandi , P. K. Basu , S. K. Banerjee

Abstract

The effect of Eucalyptus spp on tbe characteristics of soils of West Bengal has been studied. The results show that the soils in the plantation areas have been modified in some of their attributes especially the pH and Ihe nutrient status.

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B. Banerjee , Aparajita Nandi , S. Nath , S. K. Banerjee

Abstract

Soil of quality class I Eucalyptus tereticornis in South Bengal have been studied for their morphological characteristics and physicochemical attributes. The soils are acidic and poor in organic matter. The sudace soils are light but clay translocation is common in most of the profiles. The chemical composition of the soils has been influenced to a great extent by drainage condition, differential transport of eroded material, leaching, translocation, redeposition of mobile soil constituents and formation and abundance of mottles. Chemical composition also indicates trends of laterisation of organic matter and break-down of parent material into free silica and sesquioxides.

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