Myths and science of soils of the tropics /

By International symposium on myths and science of soils of the tropics. USA Soil Science Society of America and American Society of Agro 1992 . xiii, 185 pages , Include references 891188002

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Micronutrients in agriculture

Madison Soil Science Society of America 1972 . xix, 666 pages , Includes index. 116021

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Myths and science of soils of the tropics /

Micronutrients in agriculture