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1
Annual meetings /
Published 1976
Conference Proceeding Book
2
Advances in nitrogen fixation research /
Published 1984
Conference Proceeding Book
3
La alfalfa de calidad requiere buena fertilidad /
Article
4
Microbiología del suelo : un enfoque exploratorio.
by Coyne, Mark
Published 2000
Book
5
Balance nutricional de un suelo bananero /
by Bruce-Sterling, Próspero
Published 1978
Thesis Book
6
Mineralización del nitrógeno úrico en seis suelos de Costa Rica /
by Solís-Orozco, Edwin Mario
Published 1979
Thesis Book
7
Crecimiento y producción de biomasa de Azolla filiculoides LAM. con tresdosis de fósforo bajo condiciones de invernadero./.
by Víquez-Camacho, Miguel
Published 1990
Thesis Book
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