Annals of the New York Academy of Sciences · 1950 · 41 citations · 13 references
AgricultureNutritionNutritional SciencesHuman NutritionMicronutrient NutritionPlant NutritionDietary Sources Of MicronutrientsMicronutrient RequirementsNutrient Requirements
13
W. H. Schöpfer · Soil Science · 1943 · 99 citations
William J. Rôbbins · American Journal of Botany · 1939 · 62 citations