Effect of non-conventional organic fertilizer (horn and hoof meal) on the development of cacao (Theobroma cacao L.) by Rodrigo S. Zumaeta-Barbarán, Cesar O. Arévalo-Hernández

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Exploratory analysis of trace elements in soils and plants affected by a gossan in the Semiarid by César O. Arévalo-Hernández, Adailton L. Nascimento Junior, Arlicelio P. Queiroz, Eduardo Gross, Luciano da S. Souza

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Reservas de carbono en tres sistemas silvopastoriles de la Amazonía peruana by María Elena Díaz Pablo, Julio Cesar Alegre Orihuela, Carlos Alfredo Gómez Bravo, Pedro Mendoza Tamani, César O. Arévalo-Hernández

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Effect of oil palm compost and sandy soil on the growth of cacao (Theobroma cacao L.) seedlings by Oscar A. Tuesta, Juan C. Tuesta, Robert Rafael-Rutte, Enrique Arévalo-Gardini, Juan M. Vela L., Cesar O. Arévalo-Hernández

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