[Fertilization of fruit trees, kiwis and berries (Part 1.): Guidelines, revised 1993]

abonos fosfatados abonos potasicos actinidia analyse de sol arbre fruitier bayas engrais potassique fertilidad del suelo fertilisation fertilizer application fruit trees frutas de hueso irrigation magnesium fertilizers nitrogen content phosphate fertilizers potash fertilizers riego soft fruits soil fertility soil testing stone fruits teneur en azote