Open AccessDevelopment and production of maize as a function of biochar rates
Author(s) -
Jacqueline da Silva Mendes,
Lúcia Helena Garófalo Chaves,
Josely Dantas Fernandes,
Gilvanise Alves Tito,
Hugo Orlando Carvallo Guerra,
Laysa Gabryella de Souza Laurentino,
Gustavo Tomio Magalhães Kubo,
Edilma Rodrigues Bento Dantas,
Yuri Santos Silva,
Luan Dantas de Oliveira
Publication year - 2021
Publication title -
semina. ciências agrárias
Language(s) - English
Resource type - Journals
eISSN - 1679-0359
pISSN - 1676-546X
DOI - 10.5433/1679-0359.2021v42n6supl2p3707
Subject(s) - biochar , dry weight , sowing , agronomy , litter , volume (thermodynamics) , crop , biology , horticulture , zoology , chemistry , physics , organic chemistry , quantum mechanics , pyrolysis
Poultry litter biochar has shown to be promising in crop development and production. On this basis, this study was developed to investigate the influence of increasing rates of poultry litter biochar on the growth and production of maize hybrid BRS 2022. The experiment was laid out in a completely randomized design with six biochar rates (0, 2.0, 4.0, 6.1, 8.1 and 10.1 t ha-1) and four replicates. Plots consisted of pots with a volume of 20 dm3, with one plant each. The following variables were evaluated at 83 days after sowing: plant height; first-ear insertion height; stem diameter; number of leaves; leaf area; internode length and number; stem, leaf and total dry weights; ear weight; grain weight per plant; 1000-grain weight; and ear length and diameter. Biochar application influenced plant height; first-ear insertion height; stem diameter; leaf area; internode length; and stem, leaf and total dry weights, having a positive impact in increasing in ear weight, grain weight per plant, 1000-grain weight and ear length and diameter. For the conditions in which the experiment was conducted, the recommended biochar rate to obtain the best results is 6.4 t ha-1.