Development and nutritional status of passion fruit cuttings in response to application of textile sludge

Abstract

In the treatment of liquid effluents of the textile industry the textile sludge results as residue. This work aimed at evaluating the effect of sludge application to the substrate of production of passion fruit cuttings in the development, and nutritional status of plants. Experimental design used was randomized blocks with five treatments and four replications. The textile sludge was applied in the doses of 10, 15, 20 and 30 g per pot (dry base), corresponding 10, 15, 20 and 30 t ha^-1, respectively, and a control without application. Plants were fertilized with N, P, K, Zn and B at 300, 450, 150, 5, and 0.5 mg dm^-3, respectively. The experimental unit was represented by pots with 2 dm³ of a Red Latosol (Oxisol) (V = 29%). After 100 days the textile sludge corrected soil acidity. However, in doses superior to 10 t ha^-1 it caused plants death. The textile sludge increased the content of N, K, S, B, Mn and Zn, reduced Ca and Mg content, and it didn't alter Cu and Fe content of passion cuttings dry matter.