Produção de biomassa pelo tomateiro submetido a doses de silicato de cálcio e água disponível no solo.

Abstract

The experiment was conducted in greenhouse of the Agricultural Engineering Department of the Center of Technology and Natural Resources of the Federal University of Campina Grande with the objective of verifying the effects of doses of silicon (0, 6, 12, 18 g of SiO2 per vase) and of levels of available water in the soil (40, 60, 80 and 100% of the available water), on the biomass production by the leave branches, stem, and root of the tomato (Lycopersicon esculentum L.), cultivate Rio Grande. The experimental design was entirely randomized in factorial scheme 4 x 4, with three repetitions. The experimental unit was represented by a plastic vase with 10.5 kg of soil. There was effect of the silicon doses and of the available water in the soil on the biomass of the aerial part and of the root. With the humidity of 100% there were the largest increments of biomass of the aerial part as of the root, but there was decreasing effect with the increase of the silicon doses.