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handle: 10261/37260
[ES] Se estudia la acción de cinco abonos fosfatados -superfosfato cálcico (18 %); dos abonos ternarios de fórmulas (10-20-10) y (5-15-5); un abono binario (11-55-0) y phospal (27 %)- sobre cinco suelos distintos, uno de pH = 7.5 y los restantes de 5.2 < DH < 6.5 Utilizando P32 S; determina el valor L del suclo, y el valor A correspondiente a cada abono y suelo, como punto de partida para valorar el fósforo de la planta que procede del suelo v del abono respectivamente. La respuesta de Los suelos al abono fosfatado es proporcional al coeficiente K = kabono/ksuelo, lo que acrecienta el valor de dicho coeficiente como índice de la fertilidad del suelo
[EN] This study deals with effect of five phosphate fertilizer materials on five different soils. One soil has pH = 7.1, the other have 5,Z (11-15-0) > (5-15-5) > superphosphate > phospal for acid soils; and (11-15-0) > superphosphate > (1-15-5) > (10-20-10) > phospal, for calcareous soil.
Peer reviewed
15 p.
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