Cropping systems and soybean plant population in Brazilian Cerrado / Sistemas de cultivo e população de plantas de soja no Cerrado brasileiro

• Autor(a) principal: Silva, Alessandro Guerra da
• Data de Publicação: 2020
• Outros Autores: Martins, Paula Daiane de Sena, Carmo, Eduardo Lima do, Procópio, Sérgio de Oliveira, Bessa, Osmaria Ribeiro, Ferreira, Camila Jorge Bernabé
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista Veras
• Texto Completo: https://ojs.brazilianjournals.com.br/ojs/index.php/BRJD/article/view/13876
• topic: Double rows; Glycine max; plant arrangement; reduced spacing; yield components

The growing demand for soybean has led producers to adopt different plant arrangements. However, this technology information in Cerrado conditions is scarce and further studies in order to understand the effects of soybean crop are necessary. Therefore, the objective of this study was to evaluate different cropping systems, with and without addition of plant population using a soybean variety of semi determinate growth habit in Brazilian Cerrado conditions. The experiments were carried out in the crop years 2013/14 and 2014/15 in Rio Verde - GO, Brazil, in randomized block design with 4x2 factorial arrangement, consisting of four sowing systems (traditional; reduced; double rows and cross) associated to two plant populations (recommended and increase of 33%) of the Anta 82 RR® variety. The results showed that in the 2013/14 season due the better water distribution, the use of double row implantation system presented greater grain yield than the others. Also, with lower rainfall, the 2014/15 season was not influenced by implantation system. The increase in plant population to 665,000 plants ha-1 demonstrated that the densification in the semi-determinate soybean variety was not an interesting technique.