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handle: 10261/36650
[ES] Se estudia el valor L y el coeficiente K de utilización de un superfosfato cálcico en cuatro suelas ácidas de la provincia de Salamanca, así como otros valores característicos de dichos suelos. De los resultados obtenidos se define el coeficiente K como el valor que conjuga las características del suelo y los factores típicos del abono. Se deduce que el coeficiente de utilización de un superfosfato cálcico es semejante al del fósforo del suelo (K w 1) en dos suelos de contenido medio en fósforo, re@ los análisis químicos, ya que la planta toma este elempnto indistintamente de ambas fuentes suelo y abono. Por el contrario los dos suelos deficientes en fósforo toman dicho elemento preferentemente del abono (K > l), aun cuando el suelo contenga reservas suficiente para suministrar el fósforo requerido por la planta como ocurre cuando no se aporta abono al cultivo.
[EN] The L value and K coefficient of superphosphate are studied, jointly with some characteristics of four acid soils of the Salamanca province. The results define K value as the typical value that informs us about the reserves behaviour related to the type of fertilizer. From this study it is deduced that the kfertilizer is similar to k-soil when the pool of P soils in sufficient, and k-fertilizer >k-soil in two soils poor in P, while they can provide enough P to plants when no P is added to the soil.
Peer reviewed
6 p.
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