Data/hora: 09/06/2024 03:48:19

Provedor de dados: | 114
País: | Argentina
Título: | Modeling population dynamics of Anoda cristata in a glyphosate-resistant soybean crop under different management systems
Autores: | Puricelli,E.; Vitta,J.I.; Sabbatini,M.R.; Orioli,G.
Data: | 2007-06-01
Ano: | 2007
Palavras-chave: | Anoda cristata; Reduced glyphosate rates; Seedbanks; Weed population dynamics.
Resumo: | A computer simulation model was developed to describe Anoda cristata (L.) Schlecht seedbank dynamics in soybeans. The model considers different weed management strategies: absence of control, control with the recommended rate and with glyphosate at half the recommended rate, and two soybean row spacings (35 and 70 cm). The model was evaluated using data from previous experiments obtained for four consecutive years. The model accurately reproduced the seedbank dynamics. The seedbank decreased more in weed management strategies without seed production. In absence of control, the seedbank reached an equilibrium density. When seeds were produced every year, the model output was more sensitive to changes in the rate of predation; but without seed production, seed mortality was the most important process. Simulation demonstrated that long-term eradication may occur with continuous use of glyphosate at the recommended rate or with the combination of soybean at 35 cm between rows and glyphosate at half the recommended rate.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1668-298X2007000100001
Editor: | Facultad de Ciencias Agropecuarias. Universidad Nacional de Córdoba
Formato: | text/html
Fonte: | Agriscientia  v.24 n.1 2007
Fonte: | info:eu-repo/semantics/openAccess