Can sewage sludge increase soil fertility and replace inorganic fertilizers for pineapple production?

Sewage sludge from treatment plants is an important source of N and organic matter for agriculture. The objective this study was to analyze the effect sewage mineral fertilization on soil chemical properties production five pineapple cultivars. conducted in 2 x 5 factorial scheme, consisting two different fertilizers (sewage fertilizers), combined with cultivars (‘Pérola’, ‘Vitória’, ‘Smooth Cayenne’, ‘MD-2’, ‘IAC Fantástico’). favoured fertility by promoting a decrease pH increase content matter, phosphorus, calcium, iron, zinc, compared fertilization. In plants, provided statistically similar yields physic fruit characteristics Among cultivars, Cayenne’ presented highest yield (125 t ha-1), followed ‘MD-2’ Fantástico’, intermediate 98 90 ha-1. Cultivars ‘Pérola’ ‘Vitória’ lower yields. context, it observed that can be used as alternative nutrients partial replaces inorganic