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Zur Bodenfruchtbarkeit
Germann, O. - 1961
Persistent link: https://www.econbiz.de/10000308390
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El Guano y la pesca de Anchoveta
Murphy, Robert Cushman - 1954
Persistent link: https://www.econbiz.de/10000312991
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Unsere Handelsdünger und ihre Anwendung auf Acker und Grünland
Weinreich, Gustav - 1952
Persistent link: https://www.econbiz.de/10000317222
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El Guano [Ed. por: Cuia administradora del Guano Departamento Técnico. Fotos: Juan Castañeda; Enrique Gainza]
Castañeda, Juan; Gainza, Enrique - 1954
Persistent link: https://www.econbiz.de/10000321803
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A method of economic analysis applied to nitrogen fertilizer rate experiments on irrigated corn
Paschal, J. L.; French, B. L. - 1956
Persistent link: https://www.econbiz.de/10000678388
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Bodenfruchtbarkeit und Humuswirtschaft
Sauerlandt, Walter; Himmel; Blohm, Georg - 1953
Persistent link: https://www.econbiz.de/10000632009
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Thomasphosphat : sein Werden und Wirken
Gericke, Siegfried - 1952 - 23. Aufl. der Schrift: "Thomasmehl und seine Verwendung"
Persistent link: https://www.econbiz.de/10000632325
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Yield and composition of cottonseed as influenced by fertilization and other environmental factors
Tharp, W. H. (contributor) - 1949
Persistent link: https://www.econbiz.de/10000674455
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Recent developments of the world fertilizer market : a statistical analysis
Ewald, Ursula - 1957
Persistent link: https://www.econbiz.de/10000057508