Integrated pigweed (<i>Amaranthus</i> spp.) management in glufosinate-resistant soybean with a cover crop, narrow row widths, row-crop cultivation, and herbicide program

Hay, Marshall M.; Dille, J. Anita; Peterson, Dallas E.

doi:10.1017/wet.2019.62

Cited by 11 publications

(15 citation statements)

References 52 publications

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“…Non-selective herbicides are commonly used for terminating the CCs because they are effective at all growth phases ( Clark et al, 2007 ). These have low application costs and the ability to terminate CCs on a large scale within a short period of time ( Hay et al, 2019 ; Farooq et al, 2022 ). As the role of herbicides in non-target species has increased, along with their negative impact on these species, there is an increased desire to learn about their impact on plant nutrition and nutrient cycling ( Cornelius and Bradley, 2017 ).…”

Section: Termination Methods To Mitigate Greenhouse Gas Emissionsmentioning

confidence: 99%

Regulation of Soil Microbial Community Structure and Biomass to Mitigate Soil Greenhouse Gas Emission

Ihsan

Wang

et al. 2022

Front. Microbiol.

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Sustainable reduction of fertilization with technology acquisition for improving soil quality and realizing green food production is a major strategic demand for global agricultural production. Introducing legume (LCCs) and/or non-legume cover crops (NLCCs) during the fallow period before planting main crops such as wheat and corn increases surface coverage, retains soil moisture content, and absorbs excess mineral nutrients, thus reducing pollution. In addition, the cover crops (CCs) supplement the soil nutrients upon decomposition and have a green manure effect. Compared to the traditional bare land, the introduction of CCs systems has multiple ecological benefits, such as improving soil structure, promoting nutrient cycling, improving soil fertility and microbial activity, controlling soil erosion, and inhibiting weed growth, pests, and diseases. The residual decomposition process of cultivated crops after being pressed into the soil will directly change the soil carbon (C) and nitrogen (N) cycle and greenhouse gas emissions (GHGs), and thus affect the soil microbial activities. This key ecological process determines the realization of various ecological and environmental benefits of the cultivated system. Understanding the mechanism of these ecological environmental benefits provides a scientific basis for the restoration and promotion of cultivated crops in dry farming areas of the world. These findings provide an important contribution for understanding the mutual interrelationships and the research in this area, as well as increasing the use of CCs in the soil for better soil fertility, GHGs mitigation, and improving soil microbial community structure. This literature review studies the effects of crop biomass and quality on soil GHGs emissions, microbial biomass, and community structure of the crop cultivation system, aiming to clarify crop cultivation in theory.

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Section: Termination Methods To Mitigate Greenhouse Gas Emissionsmentioning

confidence: 99%

Regulation of Soil Microbial Community Structure and Biomass to Mitigate Soil Greenhouse Gas Emission

Ihsan

Wang

et al. 2022

Front. Microbiol.

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“…Harder et al (2007) observed reduced summer annual weed biomass and density in 19-and 38-cm rows compared with 76-cm rows following glyphosate application 3 to 5 wk after treatment (WAT). Similarly, Hay et al (2019) reported that planting soybean in 19-or 38-cm into an early terminated winter wheat cover reduced Palmer amaranth (Amaranthus palmeri S. Wats.)…”

Section: Introductionmentioning

confidence: 92%

Narrow-row soybean and a cereal rye cover crop suppress glyphosate-resistant horseweed (Conyza canadensis)

Fisher

Sprague

2022

Weed Technol

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Alternative strategies are needed for management of glyphosate-resistant (GR) horseweed in soybean. Integrating a cereal rye cover crop with soybean planted in narrow rows may improve control and reduce herbicide selection pressure for herbicide-resistant horseweed biotypes. Four site-years of experiments were conducted in Michigan to determine if fall-planted cereal rye terminated with glyphosate 1 wk prior to (early termination) or 1 wk after (planting green) planting in combination with narrow row soybean improved GR horseweed management. At postemergence (POST) herbicide application, horseweed biomass was reduced 71 to 90% when soybean was planted into cereal rye, regardless of termination time, compared with no cover across all row widths. Planting green or narrow row soybean suppressed horseweed through soybean harvest. When glyphosate was applied POST (non-effective), horseweed biomass was 36 to 46% lower when planting green compared with early terminated cereal rye and no cover. Similarly, planting soybean in 19- and 38-cm rows reduced horseweed biomass 48 and 28%, respectively, compared with 76 cm rows. Cereal rye did not affect soybean yield pooled over 3 of 4 site-years; however, narrow row soybean yielded 11 to 18% higher than 76 cm rows. Soybean yield was 11% higher when an effective POST herbicide was applied. In conclusion, fall-seeded cereal rye or narrow row soybean suppressed horseweed compared with no cover and 76 cm rows; however, the effects of early termination did not last throughout the growing season in most cases. Delaying cover crop termination by planting green reduced horseweed biomass and density through soybean harvest, but reduced yield in 1 site-year due to an increased incidence of white mold. These cultural practices have a positive influence on suppressing horseweed that should be part of an overall horseweed management strategy; however, the use of an effective POST herbicide is still needed for complete season-long horseweed management.

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“…Competition from a cover crop has been shown to reduce the height of Palmer amaranth. Hay et al (2019) reported a 26 to 40% reduction in Palmer amaranth height when grown in competition with winter wheat compared to no cover crop. This finding is similar to the current study where a 19 to 38% reduction in common ragweed height was observed with winter cover compared to no cover crop.…”

Section: Common Ragweed Heightmentioning

confidence: 99%

“…There is also only limited research on the interaction between cover crops and other weed control tactics (Teasdale et al, 2005;Ryan et al, 2011a,b;Nord et al, 2012;Norsworthy et al, 2016;Hay et al, 2019), specifically cover crops with HWSC, despite numerous calls for such research (Swanton and Weise, 1991;Thill et al, 1991;Swanton et al, 2008;Harker and O'Donovan, 2013). It is likely that integration of management techniques that target various common ragweed life stages will provide better control than tactics used individually.…”

Section: Introductionmentioning

confidence: 99%

Integrated Weed Management Systems to Control Common Ragweed (Ambrosia artemisiifolia L.) in Soybean

et al. 2021

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As resistance to herbicides limits growers' weed management options, integrated weed management (IWM) systems that combine non-chemical tactics with herbicides are becoming critical. A 2 year integrated weed management (IWM) study was conducted at three locations in VA, USA. The factorial study evaluated: (1) soybean planting date (early or late planted) (2) with or without winter cover (cereal rye/wheat or no cover), and (3) with or without harvest weed seed control (HWSC). Prior to soybean planting in the first year, winter cover resulted in a 22% reduction in common ragweed density compared to no cover. At soybean harvest in the first year, the lowest common ragweed densities were in the late planted plots following winter wheat, and common ragweed aboveground biomass was reduced by 46 and 22% at two locations in late planted compared to early planted soybean. To evaluate the impact of the first year's treatments and HWSC, full season soybeans were planted across the trial in the second year. Prior to soybean planting in the second year, late planting in the first year common ragweed density was reduced by 83% at one location, but significant reductions were not observed elsewhere. When comparing winter cover to no cover, common ragweed densities were reduced by 31 and 49% at two locations and densities were similar at the third location. Harvest weed seed control reduced common ragweed density by 43% at one location compared to the conventional harvest plots but no significant reductions were observed at the other locations or at other rating timings. However, there was a significant location by planting date by winter cover interaction and the overall lowest common ragweed densities (4.1 to 10.3 plants m−2) were in the late planted plots with winter cover. This research indicated that winter cover, late planting, and HWSC can reduce common ragweed populations with late planting being the most influential. Therefore, double-cropping soybean after wheat is likely the most viable means to better control common ragweed using IWM as it combines both winter cover and late planting date.

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Integrated pigweed (Amaranthus spp.) management in glufosinate-resistant soybean with a cover crop, narrow row widths, row-crop cultivation, and herbicide program

Cited by 11 publications

References 52 publications

Regulation of Soil Microbial Community Structure and Biomass to Mitigate Soil Greenhouse Gas Emission

Regulation of Soil Microbial Community Structure and Biomass to Mitigate Soil Greenhouse Gas Emission

Narrow-row soybean and a cereal rye cover crop suppress glyphosate-resistant horseweed (Conyza canadensis)

Integrated Weed Management Systems to Control Common Ragweed (Ambrosia artemisiifolia L.) in Soybean

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