TY - JA AU - Atanasiu,N. AU - Westphal,A. AU - Zuofa,K. TI - The fertilization effect and residual effect of phosphates with differing solubilities on tropical and subtropical soils, 1: Trials on soils in the humid tropics SN - 0044-2151 U1 - 78-345090 PY - 1978/// KW - Fertilizers KW - AGROVOC KW - Soil chemistry and physics KW - Soil classification and genesis KW - Tropics KW - Soil fertility N1 - 1 ill., 12 tables; 14 ref. Summaries (De, En) T2 - Zeitschrift fuer Acker und Pflanzenbau ER -