Data/hora: 10/06/2024 03:32:13

Biblioteca(s): | Embrapa Trigo.
Data corrente: | 01/07/2021
Data da última atualização: | 01/07/2021
Autoria: | MÜLLER, M.; SCHNEIDER, J. R.; KLEIN, V. A.; SILVA JUNIOR, J. P. da; CHAVARRIA, G.
Afiliação: | MARIELE MÜLLER, Faculty of Agronomy and Veterinary Medicine, Agronomy Post-Graduate Program, University of Passo Fundo, Passo Fundo, Rio Grande do Sul, Brazil; JULIA RENATA SCHNEIDER, Faculty of Agronomy and Veterinary Medicine, Agronomy Post-Graduate Program, University of Passo Fundo, Passo Fundo, Rio Grande do Sul, Brazil; VILSON ANTONIO KLEIN, Faculty of Agronomy and Veterinary Medicine, Agronomy Post-Graduate Program, University of Passo Fundo, Passo Fundo, Rio Grande do Sul, Brazil; JOSE PEREIRA DA SILVA JUNIOR, CNPT; GERALDO CHAVARRIA, 1Faculty of Agronomy and Veterinary Medicine, Agronomy Post-Graduate Program, University of Passo Fundo, Passo Fundo, Rio Grande do Sul, Brazil.
Título: | Root growth and crop performance of soybean under chemical, physical, and biological changes after subsoiling.
Ano de publicação: | 2020
Fonte/Imprenta: | Agronomy Journal, p. 1-16, 2020.
DOI: | 10.1002/agj2.20090
Idioma: | Inglês
Conteúdo: | Chemical, physical and biological soil attributes can facilitate soybean root growth in greater volume and depth in the soil, which can minimize yield reduction caused by water deficit. Soil management can contribute positively or negatively to these soil attributes. The aim of this work was to evaluate the root growth and crop performance of soybean, in response to chemical, physical and biological changes after subsoiling at different depths. At the R5 phenological stage, trenches were made for sampling and soil collection for chemical, physical and biological analysis and root growth was carried out. At V5, V7, R2 and R5 stages, plants were collected to evaluate height, leaf area and dry mass. At V5, stage number and dry mass of the nodules were evaluated. Subsoiling increased pH and Ca, and decreased Al in the soil, resulted in higher relative density and did not affect in mechanical penetration resistance compared to non-subsoiled soil. Basal respiration and soybean nodulation were higher in the subsoiled soil. Up to 15 cm depth, there were 87.91% of the total root dry mass and 78.79% of the total root volume. Initial and final plant growth were the same in subsoiled and non-subsoiled soil. Number of nodules in the subsoiled soil was 28% higher than in the non-subsoiled soil. Under these study conditions, subsoiling provides lower root growth but benefits grain yield.
Thesaurus Nal: | Root growth; Soil; Soybeans.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/224222/1/M-ller-et-al-2020-Agronomy-Journal.pdf
Registro original: | Embrapa Trigo (CNPT)
Exemplares: | CNPT - (45174-1) - UPC - AP - DD -  -  -  - DIS