Crescimento inicial de mudas de carolina (Adenanthera pavonina L.) e moringa (Moringa oleifera Lam.) em resposta a adubação com pó de rocha e biocalda

Abstract

The production of native seedlings in quantity and satisfactory quality is fundamental for the efficient reconstitution of degraded environments. In general, the places where the forest species are implanted have low fertility, demanding vigorous and healthy seedlings, being of fundamental importance the choice of fertilizers and substrates. These inputs must take into consideration, in addition to the nutritional aspects of the plant, the low cost and the availability of the input in their region. In this context, by-products from mining and mining, as well as biofertilizers, are regional alternatives with low environmental impact. Rochagem is a technique that makes possible the use of mining and garbage wastes as a source of nutrients for the soil. Biofertilizers are able to provide most of the nutrients needed by plants, as well as fighting insects, mites, fungi and even nematodes. Two different experiments were carried out, with no statistical comparison between them, in which the same experimental design was used, which was completely randomized, with five treatments and five replicates. In both cases the treatments were: T0: soil + NPK; T1: soil + Rock dust without incubation; T2: Soil + rock dust incubated for 30 days; T3: Soil + rock dust + bocalda without incubation; T4: Soil + rock dust + Biocalda incubated for 30 days. The objective of this work was to evaluate the impact of the rock dust associated to the biofertilizer biocalda in the initial development and accumulation of fresh and dry mass of carolina (Adenanthera pavonina L.) and moringa (Moringa oleifera Lam.) Seedlings. The combination of rock dust and biocalda improved the chemical attributes of the soil used. The biocalca did not promote significant growth for carolina seedlings fertilized with rock dust, however, it promoted significant growth for moringa seedlings fertilized with rock dust.