Fertilizer recommendations : agricultural and horticultural crops /

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Proceedings of the Regional Workshop on Nuclear Techniques in Crop Production ; Anais do Seminário Regional sobre Técnicas Nucleares na Produçao de Plantas Agrícolas /

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Soils and soil fertitlity / by Thompson, Louis M.

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Irrigated soils : their fertility and management / by Thorne, David W.

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Fundamentals of soil science / by Millar, C. E.

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Fundamentals of soil science / by Foth, Henry D.

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Soils in relation to crop growth / by Bear, Firman E.

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Soil : an introduction to soils and plant growth / by Donahue, Roy L.

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The nature and properties of soils / by Buckman, Harry O.

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