Application Height in Herbicides Efficiency in Bean Crops

Pereira, Gustavo Antônio Mendes; Barcellos, L.H.; Silva, D. V.; Braga, Renan Rodrigues; Teixeira, Mauri Martins; Silva, A. A.; Ribeiro, José Ivo

doi:10.1590/s0100-83582015000300023

Cited by 9 publications

(6 citation statements)

References 13 publications

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“…These results are in line with Hadi et al (2006) who observed an increased number of pods plant -1 where weed population was reduced by management techniques. Similarly, Pereira et al (2015) and El-Metwally et al (2008) sated that the number of pods produced per plant or maintained to final harvest depends on a number of environmental and management practices.…”

Section: Number Of Pods Per Plantmentioning

confidence: 99%

Evaluation of Integrated Management of Wild Radish (Raphanus raphanistrum) in Faba Bean in Waliso District of South West Shoa, Ethiopia

2020

JBAH

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A field experiment was conducted from 2017 to 2018 to evaluate effective and economical integrated management package for the control of Raphanus raphanistrum in faba bean in Waliso District of South West Shoa, Ethiopia. The experimental design used was spilt plot design with two levels of plowing frequency assigned as main plot and eight weed management practice as sub plot in three replications. Data recorded on crop and weed related parameters. Results obtained indicated that the interaction effect of plowing frequency and combination of herbicides with hand weeding frequency significantly affected plant height, number of pods per plant, seeds per pod, crop biomass and grain yield of faba bean. The highest mean grain yield (1541 kg/ha) was obtained from the interaction effect of plowing three times with application of pendimethalin at 3 lt ha-1 supplemented with once hand weeding at 30-35 days after sowing. This is followed by plowing three times and application of S-Metolachlor at 1 litter ha-1 supplemented with twice hand weeding at 30-35 and 50-55 days after sowing that gave a mean grain yields of 1463kg/ha. The interaction effect of plowing frequency and combination of herbicides with hand weeding frequency also significantly affected the weed population, weed plant height and biomass. The lowest R. raphanistrum population, height and biomass was obtained from the interaction of three times plowing and application of S-metolachlor at 1 litter ha-1 supplemented with twice hand weeding at 30-35 and 50-55 days after sowing. Economic analysis showed that trice plowing combined with application of Pendimethalin at 3 lt ha-1 supplemented by once hand weeding at 30-35 days after sowing gave the highest Net benefit (23174 birr) followed by three times plowing combined with application S-Metolachlor at 1 lt ha-1 supplemented by twice hand weeding. Therefore, three times plowing and application of S-Metolachlor herbicide supplemented by twice hand weeding at 30-35 and 50-55 DAS or three times plowing and application of Pendimethalin herbicide at 3 lt ha-1 supplemented with one time hand weeding at 30-35 DAS is recommended for economic control of R. raphanistrum in faba bean production.

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Section: Number Of Pods Per Plantmentioning

confidence: 99%

Evaluation of Integrated Management of Wild Radish (Raphanus raphanistrum) in Faba Bean in Waliso District of South West Shoa, Ethiopia

2020

JBAH

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“…El fluazifop-P-butil, tiene como objetivo principal el control de monocotiledóneas (Cesarin et al, 2013;Rezende et al, 2012). El herbicida fluazifop-P-butil actúa inhibiendo la enzima acetil-CoA carboxilasa (ACC), bloqueando la síntesis de lípidos en las plantas susceptibles (Pereira et al, 2015;Silva et al, 2014), de esta forma su acción en el aparato fotosintético es indirecto.…”

Section: Herbicidasunclassified

Fluorescencia de la clorofila <i>a</i> en plantas de piña sometidas a aplicación de herbicidas

Corrêa¹,

Ferreira²,

Pereira³

et al. 2018

Rev. Colomb. Cienc. Hortic.

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El manejo químico de malezas con herbicidas es una actividad recomendada en cultivos, estrategia que permite un control eficaz para el cultivo de piña, que puede afectar su crecimiento y fisiología. De acuerdo a esto, el objetivo de este trabajo es evaluar el efecto de herbicidas de post-emergencia en parámetros de fluorescencia de la clorofila y tasa de transporte de electrones, relacionando la fluorescencia de la clorofila a en plantas de piña, variedad Imperial, así como, comprobar la intoxicación causada por estos productos. El experimento se realizó en campo en bloques aleatorizados en esquema factorial 5×2, siendo cuatro herbicidas (ametym, diuron, fluazifop y sulfentrazona) y el control (sin herbicida) y dos tiempos de evaluación (7 y 21 días después de la aplicación). El monitoreo de la fluorescencia de clorofila y las tasas de transporte de electrones también se llevaron a cabo a los 7 y 21 días después de la aplicación del tratamiento, siendo las variables: 1) fluorescencia inicial; 2) fluorescencia máxima; 3) relación de fluorescencia variable y fluorescencia total y 4) tasa de transporte de electrones. Los herbicidas evaluados afectaron negativamente el aparato fotosintético de las plantas de piña, el herbicida diuron seguido del ametrym fueron los productos que provocaron mayor estrés fisiológico en el cultivo. En la segunda época de evaluación, los efectos sobre el aparato fotosintético de las plantas se fueron intensificando, donde los productos probados redujeron los valores de la relación fluorescencia variable y máxima, indicando aumento del estrés causado por los herbicidas evaluados.

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“…Bean plants are cultivated in several types of production systems and periods of the year. They suffer interference from a wide variety of weeds (Pereira et al, 2015, Teixeira et al, 2009. This interference represents the sum of negative interactions among plants, including competition and allelopathy (Agostinetto et al, 2008;Sausen et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Total chlorophyll and nutrients content in bean plants and weeds in competition

et al. 2018

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Plants compete for several resources on soil, including water, light and nutrients which can affect crop yield and also weeds growth. Under the hypothesis that in different densities and weed communities, crops and weeds undergo changes in their nutritional contents of macro and micronutrients, the aim of this study was to quantify the nutritional contents of bean plants and weeds cultivated in increasing densities (0, 74, 147, 221 and 295 plants m-2) and the effect of the association of plants (isolated bean, bean + Urochloa plantaginea, bean + Bidens pilosa and bean + Urochloa plantaginea + Bidens pilosa). The contents of macro and micronutrients were evaluated. The increase in plant density promoted a decrease in the total chlorophyll content of bean plants and weeds, as well as a decrease in macronutrients (K and P) and micronutrients (Zn, Fe, Mn and Cu). In the arrangement where the greatest number of species were cultivated simultaneously and in increasing densities, a greater reduction in total chlorophyll content and in macro and micronutrient contents of the three species (crops and weeds) were observed.

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Application Height in Herbicides Efficiency in Bean Crops

Cited by 9 publications

References 13 publications

Evaluation of Integrated Management of Wild Radish (Raphanus raphanistrum) in Faba Bean in Waliso District of South West Shoa, Ethiopia

Evaluation of Integrated Management of Wild Radish (Raphanus raphanistrum) in Faba Bean in Waliso District of South West Shoa, Ethiopia

Fluorescencia de la clorofila <i>a</i> en plantas de piña sometidas a aplicación de herbicidas

Total chlorophyll and nutrients content in bean plants and weeds in competition

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