Yield and agronomic characteristics of soybean regarding sowing failure

• Autor(a) principal: Fiss, Guilherme
• Data de Publicação: 2018
• Outros Autores: Schuch, Luis Osmar Braga, Peske, Silmar Teichert, Castellanos, César Iván Suárez, Meneghello, Geri Eduardo, Aumonde, Tiago Zanatta
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista de Ciências Agrárias (Belém. Online)
• Texto Completo: https://ajaes.ufra.edu.br/index.php/ajaes/article/view/2477
• topic: Glycine max (L.) Merril; Plasticity; Yield components; Yield; Glycine max (L.) Merril; Plasticidade; Componentes de rendimento; Rendimento; Agronomia

The unevenness in the distribution of plants along the sowing line implies an inefficient use of available resources, such as light, water and nutrients, causing losses in productivity resulting from intraspecific competition within the plant population. This study aims to determine the plasticity effect of soybean plants of a population as a result of sowing failure and its relation with productivity. In two commercial soybean production fields, seeded with Fundacep cultivars 59 RR and BMX Potência RR, different plant distributions were identified along the row planting, observing the presence of individual, double, triple plants and plant failures of various sizes in one meter of sowing. Agronomic characteristics and the yield per specimen and per area of their different plant distributions were evaluated. With failures in the sowing line, the increasing production of plants located in the failure edges does not compensate the production loss caused by the lack of plants. Proper distribution of plants along the sowing line provides greater productivity in soybean culture. The occurrence of double or triple plants in a population declines productivity.