Utiliza??o de água residuária de suinocultura na produ??o de mudas de maracujazeiro-azedo cv Redondo Amarelo

摘要

Besides being a nutrient source, the swine wastewater is a practice of water reutilization and it avoids water and soil pollution. This work was carried out to evaluate the swine wastewater application for yellow passion fruit development. It was used the completely randomized block design, in a 5 x 2 factorial scheme, with four replications and seven plants per plot, being the wastewater levels (0, 25, 50, 75 and 100 percent) and substrates (commercial and soil + sand mixture, in the proportion of 2:1). After 60 days, it was evaluated the length of both the aerial part and the root system (cm), leaves number, leaf area (cm2) and dry matter weight from both the aerial part and the roots (mg) and both foliar and fertility analysis of the sand/soil mixture substrat. The best passion fruit seedlings development happened with the swine wastewater application at levels 100 percent. The swine wastewater utilization in initial stage supplied the nutritional demand of the passion fruit seedlings without the supplement of commercial fertilizers. The commercial substrate utilization provided a higher passion fruit seedlings development.