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Autor(en): 
  • Mushtaq Wani
  • Kinetics and Dynamics of Potassium: In Soils of Lesser Himalayas (Kashmir) 
     

    (Buch)
    Dieser Artikel gilt, aufgrund seiner Grösse, beim Versand als 2 Artikel!


    Übersicht

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    Lieferstatus:   i.d.R. innert 5-10 Tagen versandfertig
    Veröffentlichung:  Juli 2014  
    Genre:  Naturwissensch., Medizin, Technik 
    ISBN:  9783639510614 
    EAN-Code: 
    9783639510614 
    Verlag:  Scholars' Press 
    Einband:  Kartoniert  
    Sprache:  English  
    Dimensionen:  H 220 mm / B 150 mm / D 12 mm 
    Gewicht:  328 gr 
    Seiten:  208 
    Zus. Info:  Paperback 
    Bewertung: Titel bewerten / Meinung schreiben
    Inhalt:
    Surface samples from 3 altitudes were analysed for physico-chemical parameters, K forms, mineralogy, Q/I and K release kinetic. Dominant clay minerals were illite, mixed layer, HIV. Significant correlation of clay minerals with K forms indicated their dependence on minerals. Activity ratios values were higher in low altitude than mid & high altitudes. PBCK showed wide variation. Ca2+ saturated soils and their separates were equilibrated with oxalic acid and H+-resin for NEK release. Much higher K released to H+-resin than oxalic acid. NEK release was faster initially and then gradual. NEK was maximum in clay, followed by whole soil. Sand fractions released higher quantities of K than silt, using oxalic acid but in H+-resin, silt and fine sand released almost equal K and sand released low K. kinetics of K release were evaluated using kinetic equations. Potassium releasing power of soils was assessed by successively growing mustard, maize and oat. Better correlation coefficients between total K uptake and NEK released to H+-resin signified that NEK can be used to predict and ascertain long term K supplying power of soils.

      



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