ABSTRACT: In banana cultivation, fertilization recommendations are almost exclusively based on soil chemical analysis, without considering leaf analysis and expected yield, which can help in the adjustment of fertilization programs. The aim of this study was to develop a method to recommend macronutrient fertilization rates which integrates data on leaf analysis, soil chemical analysis, and yield. Yield, soil chemical analysis, and leaf analysis data of fertigated plantations of ‘Prata’ banana were obtained for the first and second halves of the […]

The transport of pollutants via runoff in agricultural areas, mainly in soluble forms, is an environmental problem, even in conservation tillage systems. The objective of this study was to evaluate losses of nitrogen and organic carbon in runoff, after applications of 0, 60, 120, and 180 m3 ha-1 yr-1 of cattle slurry to a clayey Oxisol, with 10 % slope under no-tillage and natural rainfall, in the region of Castro – PR. The application of cattle slurry did not affect […]

The objective of this research was to study the physical and chemical properties of substrates with different mixtures of biosolids (BIO) and carbonized rice chaff (CAC) in order to get an appropriate medium for seedling development. The experiment was established in the nursery of the Department of Natural Resources/Forest Sciences, College of Agronomic Sciences, State University of São Paulo-FCA/UNESP-Botucatu (SP), using BIO from SABESP/Franca-SP and CAC in the following ratios (BIO/CAC): 100/0, 90/10, 80/20, 70/30, 60/40, 50/50, 40/60, 30/70, 20/80, […]