Competition of Sicklepod with Soybeans

Thurlow, Donald L.; Buchanan, G. A.

doi:10.1017/s0043174500035906

Cited by 96 publications

(95 citation statements)

References 15 publications

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“…Reportedly, weeds growing close to soybean rows reduced yield more than those growing farther away (Beckett and Stoller, 1988; Eaton et al, 1976; Henry and Bauman, 1989, 1991; Mortensen and Coble, 1989; Stoller and Woolley, 1985; Thurlow and Buchanan, 1972; Willard et al, 1994). This assertion was tested by reexpressing the soybean yield data (Fig.…”

Section: Resultsmentioning

confidence: 99%

Timing and Frequency of Between‐Row Mowing and Band‐Applied Herbicide for Annual Weed Control in Soybean

Donald

2000

Agronomy Journal

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did not consistently control weeds from year to year, two or more BR mowings consistently controlled weeds Alternative ways are needed to control weeds in field crops that in this BR-mowing weed management system (Donald, reduce or prevent both herbicide contamination of surface and ground water and soil erosion. A new weed management system, which con-2000b). It is not known, however, how to best time BR sisted of band-applied herbicides over the soybean [Glycine max mowing to most effectively or flexibly control weeds (L.) Merr., 'Morsoy 9137'] row and two or more between-row (BR) and reduce weed competition in soybean. Neither the mowings, was optimized in a soybean field near Columbia, MO. Beoptimum timing between starting and stopping BR tween-row mowing very close to the soil surface twice with a mower mowing nor the optimum frequency of mowing (two or killed or suppressed annual grass and broadleaf weeds, chiefly giant three mowings per growing season) are known. Knowlfoxtail (Setaria faberi R. Herrm.), common ragweed (Ambrosia aredge of how to best time BR mowing to optimize weed temisiifolia L.), and waterhemp species (Amaranthus spp.), when control would allow greater flexibility in using the BRproperly timed. When band-applied herbicide controlled weeds within mowing weed management system. the crop row, annual weeds between rows could be mowed once whenManagement decisions concerning when and how frethe tallest weeds were 8 to 24 cm tall and again just before crop canopy closure, without yield loss. No more than two BR mowings quently to mow weeds between rows will likely depend were needed to control annual weeds. Shading by crop canopy closure upon weed species and density, as well as the relative contributed to weed suppression in this BR-mowing weed managetimes of emergence and relative growth rates of weeds ment system. Soybean yield in the BR-mowing weed management compared with the crop. Crop management practices system could not be statistically distinguished from hoed, weed-free that stimulate early crop canopy closure, such as narrow check plots or broadcast-herbicide treatments and was greater than row spacing, fertilization for optimum yield, or early the weedy check plots. Herbicide use was reduced 50% by banding planting, may affect the number and timing of BR mowbecause only 50% of the field area was sprayed. The BR-mowing ings required for acceptable weed control. Crop canopy weed management system may have use in environmentally sensitive closure will likely limit the window of opportunity for areas to help reduce soil erosion and/or water contamination by her-BR mowing because vehicle traffic will likely damage bicides.Abbreviations: BR, between row; IR, in row. Published in Agron.

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Section: Resultsmentioning

confidence: 99%

Timing and Frequency of Between‐Row Mowing and Band‐Applied Herbicide for Annual Weed Control in Soybean

Donald

2000

Agronomy Journal

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“…, 1997). Competition and interference from the weed typically results in significant reductions in crop productivity, where losses ranging from 20% to 50% are possible (Thurlow & Buchanan, 1972; Teem et al. , 1980).…”

Section: Introductionmentioning

confidence: 99%

The potential geographic distribution of the invasive weed Senna obtusifolia in Australia

Dunlop

Wilson

Mackey³

2006

Weed Research

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Summary Senna obtusifolia (sicklepod) is an invasive weed of northern Australia, where it significantly impacts agricultural productivity and alters natural ecosystem structure and function. Although currently restricted to northern regions, the potential for S. obtusifolia to spread south is not known. Using the eco‐climatic model CLIMEX, this study simulated the potential geographic distribution of S. obtusifolia in Australia under two scenarios. Model parameters for both scenarios were derived from the distribution of S. obtusifolia throughout North and Central America. The first scenario used these base model parameters to predict the distribution of S. obtusifolia in Australia, whilst the second model predicted the distribution of a cold susceptible S. obtusifolia ecotype that is reported to occur in the USA. Both models predicted the potential for an extensive S. obtusifolia distribution, with the first model indicating suitable climatic conditions occurring predominantly in coastal regions from the Northern Territory, to far north Queensland and into northern Victoria. The cold susceptible ecotype displayed a comparatively reduced distribution in the southern parts of Australia, where inappropriate temperatures, a lack of thermal accumulation and cold stress restrict the invasion south to the coastal regions of central New South Wales. The extent of the predicted distribution of both ecotypes of S. obtusifolia reinforces the need for strategic management at a national scale.

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“…The presence of weeds in soybeans field reduces seed yield and the amount of this reduction depends on the amount of weeds in the growth stage of the crop (Torun and Uygur, 2019). The critical weed-free period in soybean ranges from 9 to 14 days after emergence (Thurlow and Buchanan 1972;Baysinger and Sims 1991;Van-Acker et al, 1993) to 6 weeks after emergence (Fellows and Roeth, 1992). Thus, the critical period is not static and is influenced by several factors, including cropping practices, the time of weed emergence relative to the crop, and the density and type of emerging weeds in the field.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of different herbicides on weed control, yield and yield components of soybean (Glycine max L.)

Fakhari

Ahmad

Mehdizadeh

et al. 2020

Int. J. Adv. Biol. Biomed. Res.

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In order to investigate the effect of weed control with common herbicides on yield and yield components of soybean ( Glycine max L.) Williams cultivar, two experiments were conducted using randomized complete block design with three replications at Agricultural and Natural Resources Research Center of Moghan during 2016-2017 and 2017-2018. Treatments consisted of Ethalfluralin, Imazethapyr, Trifluralin, Metribuzin, Bentazone and Alacolor herbicides with and without hand weeding control. The results showed that the number of pods per plant, biological yield, grain yield, and soybean protein percentage were statistically significant, but for plant height, growth period, chlorophyll index, 1000 seed weight and oil percent grain, the difference was not significant. The highest number of pods per plant (333.92), biological yield (1221 g.plant -1 ) and grain yield (2792 kg.ha -1 ) were obtained in hand weeding treatment. The results of the analysis of variance showed that the treatments had a significant difference in terms of herbicide efficiency percentage, density, and total weed dry weight. The results showed that one month after spraying, Trifluralin and Ethalfluralin herbicides had the highest effect on weed control. However, two months after herbicides spraying; all other treatments also showed their control effect. In this study, all weed control treatments significantly reduced the density and dry weight of weeds as compared to control treatment, but their effect was less than hand weeding. The highest grain yield (1896 kg.ha -1 ) and the highest biological yield (784.9 kg.ha -1 ) were observed in Ethalfluralin herbicide. Generally, based on the results of this study, the application of Ethalfluralin herbicide at rate of 2 L.ha -1 could be recommended for effective weed control in soybean production systems.

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Competition of Sicklepod with Soybeans

Cited by 96 publications

References 15 publications

Timing and Frequency of Between‐Row Mowing and Band‐Applied Herbicide for Annual Weed Control in Soybean

Timing and Frequency of Between‐Row Mowing and Band‐Applied Herbicide for Annual Weed Control in Soybean

The potential geographic distribution of the invasive weed Senna obtusifolia in Australia

Evaluation of different herbicides on weed control, yield and yield components of soybean (Glycine max L.)

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