TY - BOOK AU - Cottenie,A. ED - Food and Agriculture Organization of the United Nations. TI - Soil and plant testing as a basis of fertilizer recommendations SN - 9251009562 PY - 1980/// CY - Rome PB - Food and Agriculture Organization of the United Nations KW - Soils KW - Analysis KW - Plants N1 - At food of title : soil resources, management and conservation services, Land and water development divison ER -