Efficacy of Reduced Rates of Soil-Applied Dimethenamid-P and Pendimethalin Mixture Followed by Postemergence Herbicides in Maize

Idziak, R.; Woźnica, Z.

doi:10.3390/agriculture10050163

Cited by 7 publications

(7 citation statements)

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“…Effective weed control in maize is currently based solely on herbicides, that must both effectively control weeds, and be safe for crops (Waligóra et al 2012). Application of herbicides containing at least two active ingredients with different sites of action, leads to control over a wide range of weed species, limits crop damages by usage of lower rates of herbicides, reduces the residues in plants and soil, delays the appearance of resistant weed species, and, finally, reduces plant protection costs (Idziak and Woznica 2020). The effectiveness of soil applied herbicides is reduced when applied to weeds developed under conditions of water deficiency due to low absorption and translocation of the active substances (Zanatta et al 2008).…”

Section: Discussionmentioning

confidence: 99%

Journal of Plant Protection Research

Idziak,

Waligóra,

Szuba

2022

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Weeds in sweet corn reduce the yield and are economically more harmful than other pests. The aim of this study was to evaluate the effects of mechanical weed control and efficacy of pre-and postemergence applied herbicides in sweet corn, and their influence on weed control expressed by various indices, corncob yield and net return. Field studies were carried out with preemergence thiencarbazone-methyl + isoxaflutole (at 29.7 + 74.3 g • ha -1 ), postemergence S-metolachlor + terbuthylazine (937.5 + 562.5 g • ha -1 ), mesotrione + terbuthylazine (100 + 652 g • ha -1 ), terbuthylazine + mesotrione + S-metolachlor (656.3 + + 131.3 + 1093.8 g • ha -1 ), weed free (WF, hand weeding), and mechanical weeding (MW, hoeing) to assess weed control, corncob yield and net return. Variability in potential yield losses was observed between years due to weather conditions at the level of 30 to even 93%. Hand weeding was the most effective, but it is expensive and needs is labour consuming, unlike mechanical weeding which was the cheapest but simultaneously the least effective. Among pre-and postemergence applied herbicides, a mixture of terbuthylazine + mesotrione + S-metolachlor was the most efficacious weed control treatment. It gave high corncob yield and economic net return.

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Section: Discussionmentioning

confidence: 99%

Journal of Plant Protection Research

Idziak,

Waligóra,

Szuba

2022

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“…The application of pre-emergence herbicides is an established method to control the infestation of weeds in a maize and bean mixture [25,27]. The active ingredients Dimethenamid-P and Pendimethalin effectively control a wide range of annual grass and annual broad-leaved weeds during an early sensitive stage of maize development [42][43][44][45]. Nevertheless, when the herbicide activity declines, new-emerging weeds occur and postemergence herbicides must be applied for optimal weed control as they can also be competitive.…”

Section: Discussionmentioning

confidence: 99%

The Method and Timing of Weed Control Affect the Productivity of Intercropped Maize (Zea mays L.) and Bean (Phaseolus vulgaris L.)

Andert

2021

Agriculture

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Intercropping results in high overall system productivity on a given piece of land due to the efficient use of available plant growth resources. Weed control in intercropping systems is, however, still a challenge. This study focuses on the effect of the type of weed control (chemical/mechanical) and the timing of chemical herbicide application (pre-emergence/post-emergence) on weed control and crop productivity in a maize bean mixture. For this purpose, the results of a three-year field experiment (2017 to 2019) in northeast Germany will be presented. The experimental setup included a control, three chemical methods, and one mechanical method of weed control. Except for the mechanical treatment, a completely randomized block design was established. Weeds were assessed at BBCH 12 of the maize, immediately before the first weed control treatments to estimate the initial weed infestation, and twice in the six to eight leaf stage of the maize. The weed coverage (%) was estimated. The maize bean mixture was harvested and yields (t ha−1) were measured. The results confirm that the type of weed control, as well as the timing of herbicide application, significantly affects the weed coverage of the maize bean mixture. The most successful weed control strategy was the double chemical herbicide application, in which chemical herbicides are in used pre-emergence beans (BBCH 12 maize) and post-emergence beans (BBCH 12 bean). Weed coverage was reduced by up to 75% using this most effective herbicide strategy and by up to 61% through mechanical weed control, compared to the control. The additional effects of post-emergence treatment on the pre-emergence herbicide control resulted in a 16.5% weed coverage decline. The yield surplus of double chemical herbicide application (pre/post-emergence) was up to 53%, and for the mechanical weed control up to 23%. Additionally, post-emergence herbicide use in intercropped maize and bean resulted in a 16% yield surplus, compared to the single pre-emergence chemical weed control. Optimal timing of weed control during the most sensitive phenology stages of the maize bean mixture is crucial for productivity. The results of this study provide an additional option for suitable weed control of intercropped maize and bean.

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“…Four weeks after the last herbicide application, weeds from the plots were collected (two randomly selected places in each plot). Weeds were divided into species, weighed, and, using the Henderson-Tilton formula, weed control efficacy was calculated [14].…”

Section: Methodsmentioning

confidence: 99%

Effect of Multifunctional Adjuvants on Physical and Chemical Features of Spray Liquid and Efficacy in Sugar Beet

et al. 2023

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In the period 2017–2019, field experiments were conducted at the Research and Education Center Gorzyń, unit Złotniki (52°486′ N; 16°819′ E), Poznan University of Life Sciences, at the Luvisols, under natural weather conditions, to evaluate the effect of multifunctional methylated seed oil (EXP 1, 2, and 3) and standard adjuvants (AtB and S) on the efficacy of mixtures phenmedipham + ethofumesate and metamitron applied in full (PEM 1) and reduced rates (PEM 2) in sugar beet. Field studies were carried out and three applications of herbicides were administrated subsequent to the emergence of weeds (BBCH 11–12). PEM applied at reduced rates with EXP was more effective than after AtB and S adjuvants. They enabled the attainment of high and consistent efficacy of herbicides (with EXP—96–97%, AtB—97%, S—95%, compared to PEM 1—93%, and PEM 2—82%), irrespective of varying weather conditions during, and subsequent to, their application. The sugar beet root yield from herbicide treatments after tested adjuvants was higher than from the untreated control and after application of reduced rates of herbicides without adjuvants.

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Efficacy of Reduced Rates of Soil-Applied Dimethenamid-P and Pendimethalin Mixture Followed by Postemergence Herbicides in Maize

Cited by 7 publications

References 31 publications

Journal of Plant Protection Research

Journal of Plant Protection Research

The Method and Timing of Weed Control Affect the Productivity of Intercropped Maize (Zea mays L.) and Bean (Phaseolus vulgaris L.)

Effect of Multifunctional Adjuvants on Physical and Chemical Features of Spray Liquid and Efficacy in Sugar Beet

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