EFFECT OF SEWAGE SLUDGE COMPOST ON MELOIDOGYNE JAVANICA ON TOMATO
Authors
G. M. de C. Barbosa
M. L. Mendes
J. Tavares-Filho
P. B. N. Rodriguez
E. Vizoni
Keywords:
control, cultural management, m. javanica, nematode, organic matter, root-knot nematode, sewage sludge
Abstract
A preliminary study to determine the influence of sewage sludge compost on Meloidogyne javanica on tomato was carried out under greenhouse conditions. Organic soil amendments were prepared from sewage sludge from the Paranawater treatment and green plant residues from urban waste. The experiment was performed in a complete randomized design with five treatments and six replications. The treatments were made up of different organic soil amendment rates (0, 25, 50, 75, and 100% compost) applied to the soil. Sixty days after the plant inoculations, the numbers of galls, egg masses, and eggs per root systems were obtained. The dry matter weight of the canopy was greatest with 75%; however, it was not different from 50% and 100% compost. The results indicated that the treatments with 75 and 100% organic compost gave the best results in terms of reduced numbers of galls, egg masses, and eggs per root systems, suggesting its potential benefit for M. javanica population control.
