influência dos herbicidas eptc e trifluralin e da inoculação das sementes com rhizobium phaseoli na nodulação e produção do feijoeiro (phaseolus vulgarisl.) influence of eptc and trifluralin herbicides and of rhizobium sp. seed inoculation on nodulation and dry bean production

influência dos herbicidas eptc e trifluralin e da inoculação das sementes com rhizobium phaseoli na nodulação e produção do feijoeiro (phaseolus vulgarisl.) influence of eptc and trifluralin herbicides and of rhizobium sp. seed inoculation on nodulation and dry bean production

;Eli S. Lopes;Roberto Deuber;Reinaldo Forster;Hermano Gargantini;Eduardo A. Bulisani
revista espanola de salud publica 1971 Vol. 30 pp. 109-116
200
lopes1971bragantiainfluncia

Abstract

Um ensaio em Latossolo Roxo foi conduzido para verificar a influência dos herbicidas EPTC e Trifluralin na nodulação e produção do feijoeiro, e, também, a resposta dêste à inoculação das sementes com estirpe selecionada de Rhizobium sp. A análise estatística dos dados coletados mostrou aumento significativo no pêso sêco dos nódulos, devido à inoculação das sementes. O aumento na nodulação não foi acompanhado de incremento significativo da produção. A aplicação dos herbicidas não influenciou a nodulação, mas proporcionou perfeito contrôle de gramíneas invasoras.
A field trial was carried out in a Latosolic B Terra Roxa, to investigate the influence of the herbicides EPTC and Trifluralin on nodulation and dry bean production. Sampling of nodules and plants was made at flowering. Data of bean production were also collected. A system of scores was used to evaluate the control of weeds. Statistical analysis of data showed significant increase in dry weight of nodules due to seed inoculation but there was no correspondent increase in bean production due to seed inoculation. It was observed that herbicides EPTC and Trifluralin had no influence on nodulation. Control of weeds was effective.

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