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Author(s): 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... ... |
Author(s): BERNARDI, A. C. de C.; RASSINI, J. B. Providing an adequate supply of nutrients is important for alfalfa production and is essential to maintain high quality and profitable yields. Potassium fertilization is essential for alfalfa producti... ... |
Author(s): CAMPOS, D. V. B. de; FIGUEIREDO, M. A.; LIMA, F. L. de O.; CORREA, J. C.; SILVA, C. dos S.; MATTOS, B. B.; ARAUJO, E. da S. The objective of this work was to evaluate the release of potassium from organomineral fertilizers in the soil, under laboratory conditions. |
Author(s): VÉRAS, E. L. de L.; DIFANTE, G. dos S.; ARAUJO, A. R. de; MONTAGNER, D. B.; MONTEIRO, G. O. de A.; ARAÚJO, C. M. C.; GURGEL, A. L. C.; MACEDO, M. C. M.; RODRIGUES, J. G.; SANTANA, J. C. S. ABSTRACT - The objective was to evaluate the effects of potassium fertilization on the morphogenetic, structural, and productive characteristics of Panicum maximum (cvs. Tanzania, Quênia, Mombaça, Zur... ... |
Author(s): TEIXEIRA, P. C.; GONÇALVES, J. L. M.; ARTHUR JUNIOR, J. C.; DEZORDI, C. Matéria seca e relações hídricas em mudas de Eucalyptus sp. em função da fertilização potássica e da umidade do solo: este trabalho teve como objetivo verificar a influência da adubação potássica e do... ... |
Author(s): BERNARDI, A. C. C.; GIMENEZ, L. M.; SILVA, C. A.; MACHADO, P. L. O. A. Variable rate application of fertilizer has the potential to improve nutrient use efficiency, improve economic returns, and reduce negative environmental impacts. The objective of this study was to ev... ... |
Author(s): REIS, A. F. de B.; NASCENTE, A. S.; ALMEIDA, R. E. M. de; CHAGAS JÚNIOR, A. F. In order to reach an optimum and sustainable production, growers must know the fertilizing potassium (K) and phosphorous (P) application rates. The present study aimed to determine the rice developmen... ... |
Author(s): BRUNETTO, G.; NAVA, G.; AMBROSINI, V. G.; COMIN, J. J.; KAMINSKI, J.
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Author(s): SORATTO, R. P.; CRUSCIOL, C. A. C.; CAMPOS, M. DE; GILABEL, A. P.; COSTA, C. H. M. DA; CASTRO, G. S. A.; FERRARI NETO, J. ABSTRACT: The objective of this work was to evaluate the efficiency and the residual effects of both molten and ground alkaline potassium-silicate rocks (K1) and of ground phonolite rock (K2), as sour... ... |
Author(s): FEITOSA FILHO, J. C.; BOTREL, T. A.; PINTO, J. M.; CAMARGO, A. P. The experiment was installed in area of the Department of Agricultural Engineering of the ESALQ/USP, Piracicaba-SP, Brazil. |
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