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Phytoavailability of copper in industrial by-products and mineral fertilizers. Authorship: SOUZA, C. P. C.; ABREU, C. A.; CUNHA, J. F. da; COSTA, G. M. da; ANDRADE, C. A. de Abstract: Alternative copper (Cu) sources could be used in fertilizer production, although the bioavailability of copper in these materials is unknown. The objective of this study was to evaluate the... ... Repository: BDPA Publication year: 2015
Efficiency of the fused magnesium potassium phosphate for soybean. Authorship: ABREU, C. A. de; SOUZA, C. P. C. de; VIARO, A. C. K.; ANDRADE, C. A. de; ABREU, M. F. Abstract: The use of ground natural rocks (in natura) containing K was evaluated for the cultivation of rice (NEPTUNE et al., 1980), corn (Siqueira et al., 1985) and more recently in corn, soybeans an... ... Repository: BDPA Publication year: 2014
Métodos de análises químicas para avaliação da fertilidade do solo. Authorship: SILVA, F. C. da; ABREU, M. F. de; PEREZ, D. V.; EIRA, P. A. da; ABREU, C. A. de; RAIJ, B. Van; GIANELLO, C.; COELHO, A. M.; QUAGGIO, J. A.; TEDESCO, M. J.; SILVA, C. A.; BARRETO, W. de O. Preparo da amostra. pH em água. pH em CaCl2. pH SMP. Reagente. Cálculo. Equipamento. Vantagens e desvantagens. Método complexométrico com o emprego do EDTA. Método de espectrofotometria de absorção at... ... Repository: BDPA Publication year: 2009

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