Productive characteristics of peanut cultivars fertilized with wood ash

Abstract

Aiming to assist small farmers, the search for low cost fertilizers and soil acid correctives has intensified. The wood ash waste is an alternative, which can act as fertilizer and corrective. It is also from available materials, which are reuse-able with less environmental impact. The objective of this study was to evaluate the effect of wood ash doses (0, 6, 12, 18, 24 and 30 g dm-3) on the productive characteristics of peanut cv. IAC OL3 and IAC 503. The experiment was carried in a complete randomized block in factorial scheme 2x6 with five replications in a greenhouse at the Federal University of Mato Grosso campus of Rondonópolis, MT. The substrate was Cerrado Oxisol to fill 1.5 dm3 pots. The analysis of variance with sequential polynomial regression test was employed. The results showed that incorporation of wood ash to the soil was beneficial to the productive characteristics of peanuts. The dry mass of pods was influenced by wood ash application with higher results found for cultivar IAC 503. To the variables leaf dry mass, root dry mass, number of pods, grains pot-1 and grains yield showed no significant interaction between wood ash and cultivars. This study recommends wood ash doses in the range between 22.34 g dm-3 and 29.78 g dm-3.