Effects of sewage sludge and length on initial growth of guava seedlings

Abstract

), number of leaves, levels of chlorophyll a, b and total chlorophyll each experimental plot consisted of four repetitions of 16 seeds. The production of guava seedlings with sewage sludge should be conducted with the dosages of 240 and 480 t ha -1 . Shading with two screens is recommended for the production of guava seedlings.