Data/hora: 05/06/2024 16:24:41

Provedor de dados: | 87
País: | Brazil
Título: | Modeling of weeds interference periods in bean
Autores: | Parreira,M.C.; Barroso,A.A.M.; Pereira,F.C.M.; Alves,P.L.C.A.
Data: | 2012-12-01
Ano: | 2012
Palavras-chave: | Phaseolus vulgaris; Competition; PPI; WEEPPEL.
Resumo: | The research objective was to determine the effects of spacing and seeding density of common bean to the period prior to weed interference (PPI) and weed period prior to economic loss (WEEPPEL). The treatments consisted of periods of coexistence between culture and the weeds, with 0 to 10, 0 to 20, 0 to 30, 0 to 40, 0 to 50, 0 to 60, 0 to 70, and 0 to 80 days and a control maintained without weeds. In addition to the periods of coexistence, there were still studies with an inter-row of 0.45 and 0.60 m, 10 and 15 plants m-1. The experimental delineation used was randomized blocks with four repetitions per treatment. The grain productivity of the culture had a reduction of 63, 50, 42 and 57% when the coexistence with the weed plants was during the entire cycle of the culture for a row spacing of 0.45 m and a seeding density of 10 and 15 plants per meter; and a row spacing of 0.60m and a seeding density of 10 and 15 plants per meter, respectively. The PPI occurred in 23, 27, 13, and 19 days after crop emergence and WEEPPEL in 10, 9, 8, and 8 days, respectively.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582012000400004
Editor: | Sociedade Brasileira da Ciência das Plantas Daninhas
Relação: | 10.1590/S0100-83582012000400004
Formato: | text/html
Fonte: | Planta Daninha  v.30 n.4 2012
Fonte: | info:eu-repo/semantics/openAccess