Abstract
The acidifying effect of fertilizers applied to agricultural soils can be estimated from their chemical composition and a quantification of the nitrogen cycle in the agricultural system under consideration. In The Netherlands, the acidifying effect of fertilizers is estimated from an ionic-balance equation, referred to as the Pierre-Sluijsmans equation. This equation estimates the amounts of lime required to neutralize the acidifying effect of fertilizers applied to agricultural soils. In the present paper this ionic-balance equation is derived from chemical considerations and its theoretical background is discussed. Particular attention is paid to the acidifying effect of the nitrogen component of fertilizers applied to agricultural soils.
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Harmsen, K., Loman, H. & Neeteson, J.J. A derivation of the Pierre-Sluijsmans equation used in the Netherlands to estimate the acidifying effect of fertilizers applied to agricultural soils. Fertilizer Research 26, 319–325 (1990). https://doi.org/10.1007/BF01048770
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DOI: https://doi.org/10.1007/BF01048770