Capina e adubação nitrogenada em cobertura realizada em diferentes estádios de desenvolvimento do feijoeiro: III - Cultivo de "inverno"

Paes, José Mauro Valente; Cardoso, Antônio Américo; Silva, Antônio Alberto da; Brito, Césio Humberto de

doi:10.1590/s0103-84781999000200009

Cited by 2 publications

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“…However, when the culture was handled in accordance with technical recommendations for the bean crop, it was more competitive with some weeds. Paes et al (1999) found reductions of 27 and 34% in the productivity of common beans (cultivars "Ouro" and "Ouro Negro", respectively). Fontes et al (2001) measured a 73% reduction in bean productivity.…”

Section: Resultsmentioning

confidence: 98%

Modeling of weeds interference periods in bean

Parreira

Barroso²,

Pereira

et al. 2012

Planta daninha

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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.

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Section: Resultsmentioning

confidence: 98%

Modeling of weeds interference periods in bean

Parreira

Barroso²,

Pereira

et al. 2012

Planta daninha

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“…composiçâo e densidade de plantas daninhas. Entretanto, quando manejado de acordó com as recomendaçôes técnicas, o feijoeiro pode ser mais competitivo que algumas plantas daninhas, poisSilva et al (2006) detectaram que a cultura reduziu em 50% o acumulo da massa seca de Brachiaria brizantha, em relaçâo à sua massa em monocultivo Paes et al (1999),. por sua vez, Tabela 3.…”

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Período anterior à interferência das plantas daninhas para a cultivar de feijoeiro ‘Rubi’ em função do espaçamento e da densidade de semeadura

2011

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RESUMO.Os feijões estão entre os alimentos mais antigos, fazendo parte da alimentação diária da população brasileira. Objetivou-se com este trabalho determinar o período de convivência anterior à interferência das plantas daninhas (PAI) na cultura do feijoeiro em diferentes espaçamentos e densidades de plantas. Os tratamentos foram constituídos de períodos de convivência entre a cultura e as plantas daninhas, sendo zero a dez, zero a 20, zero a 30, zero a 40, zero a 50, zero a 60, zero a 70 e zero a 80 dias e mais uma testemunha sem convívio com as plantas daninhas. Além dos períodos de convivência, realizaram-se ainda estudos com espaçamentos entre linhas de 0,45 e 0,60 m e mais duas densidades de semeadura: dez e 15 plantas m -1. Adotou-se delineamento experimental de blocos casualizados, com quatro repetições. Quando o feijoeiro esteve presente com as plantas daninhas durante o ciclo, a produtividade dos grãos foi reduzida a 63, 50, 42 e 57% para os tratamentos com espaçamento de 0,45 m, densidades de semeadura de dez e 15 plantas m ABSTRACT. Effect of spacing and seeding density in a period prior to weed interference of Phaseolus vulgaris 'Rubi'. Beans are among the oldest foods, dating from the first records of human history, and are a staple of the daily diet of the Brazilian population. This research had the objective to determine the effects of spacing and seeding density in the period prior to weed interference (PPI) of common beans (Phaseolus vulgaris) 'Rubi'. The treatments consisted of periods of coexistence between culture and 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 another test without weeds. In addition to the periods of coexistence, there were also studies with 0.45 and 0.60 m inter-row spacing and two sowing densities -10 and 15 plants m , respectively. The period prior to weed interference (PPI) occurred at 23, 27, 13 e 19 days after crop emergence, respectively.

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Capina e adubação nitrogenada em cobertura realizada em diferentes estádios de desenvolvimento do feijoeiro: III - Cultivo de "inverno"

Cited by 2 publications

References 1 publication

Modeling of weeds interference periods in bean

Modeling of weeds interference periods in bean

Período anterior à interferência das plantas daninhas para a cultivar de feijoeiro ‘Rubi’ em função do espaçamento e da densidade de semeadura

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