首页|Characteristics and Mineral Assemblage of the Soils of the Regional Station, Gurdaspur, Punjab, North-West India
Characteristics and Mineral Assemblage of the Soils of the Regional Station, Gurdaspur, Punjab, North-West India
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NSTL
Soils of the Regional Station Gurdaspur of Punjab Agricultural Universityhave been surveyed, characterized, classified as per Soil Taxonomy and mapped. All the soils have ochric epipedon and argillic sub surface horizon. Soil pH is neutral to alkalinewith surface texture varying from sandy loam to silty clay loam. However, the subsurface texture varies from loam to silty clay loam. Soils have 10YR hue with value 5 and chroma varying from 3 to 5. The soils are well developed as indicated by the presence of textural B horizon in all the soils. Most soils have CaCO_3 in the surface only. CEC of these soils vary from 5.80 to 18.10 c mol kg~(-1). These soils have been classified as fine loamy mixed hyperthermic family of Typic Haplustalf. Four soil-mapping units were identified based on surface texture and pH differentia and soil map of Regional Station was prepared. Mineral assemblage of coarse and fine fractions of these soils has been investigated using X-ray diffraction. Soils have mixed mineralogywith illite as a dominant mineral in clay fraction. Coarse fraction mineralogy is dominated by quartz, feldspar, mica and chlorite. Soils are mostly medium in OC, high in available P and medium in available K. Only 5 per cent samples of these soils aredeficient in DTPA-extractable Zn. DTPA-extractable Cu, Mn and Fe are sufficient.
NSTL
