INTERACTIONS OF BIOCHAR AND ORGANIC COMPOUND FOR SEEDLINGS PRODUCTION OF Magonia pubescens A. St.-Hil.

Abstract

-The objective of this study was to test the hypothesis that biochar, applied with cattle manure, promotes better development of seedlings of Magonia pubescens St. Hil. The experiment was conducted at the State University of Mato Grosso, Nova Xavantina, Brazil, in 2011. We used a completely randomized design, with twelve treatments and three replications. The substrates formed by the higher levels of cattle manure plus biochar (30%) provided better results of height, diameter and aerial biomass. However, the Dickson Quality Index has not confirmed the quality of seedlings in these treatments. We also observed that the doses of biochar (20 and 30%) when added separately to the Latosol, are not efficient for the growth improvement of the seedlings. Based on the present results, we validate the hypothesis that substrates formed with a mixture of cattle manure and biochar are effective to improve the production of seedlings of M. pubescens.Keywords: Tingui; Cerrado; Cattle manure. INTERAÇÃO ENTRE BIOCHAR E COMPOSTO ORGÂNICO NO DESENVOLVIMENTO DE MUDAS DE Magonia pubescens A. St.-Hil. RESUMO -Este trabalho teve como objetivo testar a hipótese de que o biochar (carvão vegetal), aplicado em conjunto com compostos orgânicos como esterco bovino, promove melhor desenvolvimento de mudas de

<b>Nutritional supplementation required by native Cerrado species development, in nursery

“…As for foliar fertilization, it was evidenced that, by Tukey's test at 5% probability, for the variables analyzed, it is not recommended to perform foliar fertilization until 300 days of age, hence the need for longer studies on K. coriaceae and E. dysenterica, and at some point, nutritional supplementation may be required through foliar fertilization. However, some species show no significant increase in development when subjected to fertilization, which may be a feature of their genetic variability in response to low natural fertility of the soil to which they are adapted (Lima, Tamiozzo, Palomino, Petter, & Marimon-Junior, 2015). The superiority of bovine manure can be explained by the higher content of nitrogen (N) and potassium (K) in these sources.…”

ADIÇÃO DE MOINHA DE CARVÃO E DE STIMULATE® NA FORMAÇÃO DE MUDAS DE Acacia mangium

“…Um componente que tem sido testado na composição de substratos é a moinha de carvão, também conhecido como fino de carvão (ZANETTI et al, 2003) ou biocarvão JOSEPH, 2009). De origem orgânica, oriundo da carbonização da madeira e de baixo custo, o seu uso na composição do substrato pode aumentar a porosidade, a capacidade de retenção de água (LIMA et al, 2015) e facilitar o desenvolvimento de microrganismos benéficos, cumprindo a função dos aditivos orgânicos usados convencionalmente (ZANETTI et al, 2003). Além disso, por suas características químicas, tais como a elevada capacidade de troca catiônica, pode promover um aumento relevante na disponibilidade de nutrientes no solo (GLASER et al, 2002;LIANG et al, 2006).…”

Cultivation of common bean with the application of biochar of ouricuri (Syagrus coronata (Mart) Becc.) endocarp

“…It can contribute to increase of the pH levels, by correcting the acid soils. It promotes an increase in the cation exchange capacity (CEC) and availability of nutrients to the soil, resulting in improvements in soil fertility (Lima et al, 2015). In the soil biological conditions, biochar acts by influencing the composition, diversity and microbial activity of the soil (Doan et al, 2014;Purakayastha et al, 2015;Wang et al, 2015;Pan et al, 2016).…”