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  1. No Access

    Article

    An evaluation of plant-available soil nitrogen in selected sandy soils by electro-ultrafiltration, KCl, and CaCl2 extraction methods

     Improving the precision in estimating the nitrogen (N) requirement for citrus trees on sandy soils is important for increasing N efficiency by the trees and minimizing potential losses of N in commercial citr...

    H. Dou, A. K. Alva, T. Appel in Biology and Fertility of Soils (2000)

  2. No Access

    Article

    Nitrogen uptake and growth of two citrus rootstock seedlings in a sandy soil receiving different controlled-release fertilizer sources

    Understanding the fate of different forms of nitrogen (N) fertilizers applied to soils is an important step in enhancing N use efficiency and minimizing N losses. The growth and N uptake of two citrus rootsto...

    H. Dou, A. K. Alva in Biology and Fertility of Soils (1998)