Early Preplant Herbicide Applications for No-Till Soybean (<i>Glycine max</i>) Weed Control

Stougaard, Robert N.; Kapuśta, George; Roskamp, Gordon K.

doi:10.1017/s0043174500059014

Cited by 66 publications

(66 citation statements)

References 4 publications

(6 reference statements)

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“…Fall panicum and prickly sida control were similar with EP and PRE herbicide applications. Our results agree with those ofStougaard et al (16) in that EP applications cannot provide adequate season-long control of fall panicum where densities are high. Pennsylvania smartweed control was greater with EP than with PRE applications.…”

Section: Discussionsupporting

confidence: 89%

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Herbicide Efficacy for Various Application Times in Doublecrop Wheat and Soybean

Higgins¹,

Whitwell

Toler

1988

Agronomy Journal

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Effective weed management is essential in reduced tillage doublecrop wheat (Triticum aestivum L.) and soybean (Glycine max Merr.] production. Field experiments were conducted on a Hartsells fine sandy loam soil (fine loamy, silaceous, thermic Typic Hapludalfs) near Crossville, AL, from 1981 to 1983 to determine the influence of application time on herbicidal efficacy of oryzalin [4-(dipropylamino )-3,5-dinitrobenzenesulfonamide], pendimethalin [N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenamine], and oryzalin + 2,4-D [(2,4dichlorophenoxy)acetic acid] for weed control. Herbicides were applied early preplant (EP) to fully tillered wheat, and preemergence (PRE) at soybean planting. Paraquat (1,1'-dimethyl-4,4'-bipyridinium ion) was applied separately at 0.3 kg ha -• at the time of PRE applications to all plots that received other herbicide applications (EP or PRE) and alone as a check treatment. Early preplant treatments did not reduce wheat seed yields in 2 of 3 yr compared to the untreated control. Fall panicum (Panicum dichotomiflorum Michx.) and prickly sida (Sida spinosa L.) control were similar with EP and PRE applications of all herbicides. Fall panicum control ranged from 63 to 100%, and prickly sida control from 20 to 87%. Early preplant applications provided greater Pennsylvania smartweed (Polygonum pensylvanicum L.) control than PRE applications. Pennsylvania smartweed control was 5 to 70% greater with EP applications compared to PRE applications. Preemergence applications of oryzalin + 2,4-D produced moderate (20%) soybean injury in 1982 and 1983.Soybean seed yields were similar with EP and PRE applications in 1981 and 1982; however, seed yields were from 26 to 103% greater with EP applications than PRE applications in 1983.

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Section: Discussionsupporting

confidence: 89%

“…The soil-applied herbicide oryzalin applied prior to wheat maturity has provided adequate residual control of some summer annual weeds in continuous wheat (I). Stougaard et al ( 16) found oryzalin…”

mentioning

confidence: 99%

Herbicide Efficacy for Various Application Times in Doublecrop Wheat and Soybean

Higgins¹,

Whitwell

Toler

1988

Agronomy Journal

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“…Moreover, NT could promote weed germination and growth since there is no soil inversion. Several previous studies observed higher weed proliferation and diversity in NT than conventional tillage (Stougaard et al 1984;Kettler et al 2000;Légère et al 2008), and thus weed control became one of the main problems under NT (Soane et al 2012;Melander et al 2013;Nichols et al 2015). Weed competition would adversely affect crop root growth (Norris 1992;Rajcan and Swanton 2001;Silva et al 2011;Rizzardi and Wandscheer 2014).…”

Section: Introductionmentioning

confidence: 98%

The long-term effects of tillage practice and phosphorus fertilization on the distribution and morphology of corn root

Mollier

Ziadi

et al. 2016

Plant Soil

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Background and aims Relevant soil properties and nutrient distributions influencing crop root growth might be different under no-till (NT) and mouldboard plough (MP) management. The possible different root systems within different managements might have key impact on crop nutrient uptake and consequently crop production. Our objective was to assess the long-term combined effects of tillage and phosphorus (P) fertilization on corn (Zea mays L.) root distribution and morphology. Methods Corn root and soil samples were collected during the silking stage at five depths (0-5, 5-10, 10-20, 20-30 and 30-40 cm) and three horizontal distances perpendicular to the corn row (5, 15 and 25 cm) under MP and NT with three P fertilizations (0, 17.5, and 35 kg P ha −1 ) for a long-term (22 years) experiment in eastern Canada. Root morphology and soil properties were determined. Results NT practice decreased corn root biomass by −26 % compared to MP, mainly by decreasing the primary and secondary roots. Additionally, corn roots in NT tend to be more expansive on the surface layer with higher root length and surface densities for the depth of 0-5 cm at two sampling distances of 15 and 25 cm. The 35 kg P ha −1 rate increased the root biomass by 26 and 41 % compared to the 0 and 17.5 kg P ha −1 rates. Conclusions No-tillage practice and low rates of P fertilization reduce corn roots. This is probably caused by the weed competition in NT and the continued downward P status with low P rates over 22 years. Abbreviations MP Mouldboard plough NTNo-till 0P, 0.5P and 1P P fertilization rates of 0, 17.5 and 35 kg P ha −1 every two years RMD Root mass density RSD Root surface density RLD Root length density Plant Soil

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“…Fall applications of residual herbicides have been reported to provide excellent control of winter annual weeds (Hasty et al 2004;Stougaard et al 1984). Fall-applied residual herbicides are commonly recommended in Mississippi for management of GR horseweed [Conyza canadensis (L.) Cronq.]…”

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confidence: 99%

Glyphosate-Resistant Italian Ryegrass (Lolium perennessp.multiflorum) Control with Fall-Applied Residual Herbicides

et al. 2014

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Dense populations of glyphosate-resistant (GR) Italian ryegrass are problematic for spring burndown herbicide programs and crop establishment in the midsouthern United States. Two field studies were conducted to evaluate fall-applied residual herbicides for control of GR Italian ryegrass and to identify the most effective application timing for these herbicides. Fall applications of clomazone at 0.84 and 1.12 kg ai ha−1, pyroxasulfone at 0.16 kg ai ha−1, andS-metolachlor at 1.79 kg ai ha−1controlled GR Italian ryegrass ≥ 93% 180 d after application. Control from incorporated applications of pendimethalin at 1.59 kg ai ha−1and trifluralin at 1.68 kg ai ha−1and surface applications ofS-metolachlor at 1.42 kg ha−1provided control similar to the best treatments. Glyphosate-resistant Italian ryegrass control following clomazone, pyroxasulfone,S-metolachlor, or trifluralin applied in mid September, October, or November exceeded that from fall tillage by 19 to 56% at 90 and 140 d after the last treatment. Pyroxasulfone andS-metolachlor controlled more GR Italian ryegrass following October or November applications compared with those in September at both 90 and 140 d after the last application timing. However, the benefit of delaying clomazone application from October to November was not realized until the last evaluation (140 d after the last treatment). Clomazone, pyroxasulfone, andS-metolachlor offer growers the best opportunity for residual control of GR Italian ryegrass, and control is optimized when these herbicides are applied in November.

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Early Preplant Herbicide Applications for No-Till Soybean (Glycine max) Weed Control

Cited by 66 publications

References 4 publications

Herbicide Efficacy for Various Application Times in Doublecrop Wheat and Soybean

Herbicide Efficacy for Various Application Times in Doublecrop Wheat and Soybean

The long-term effects of tillage practice and phosphorus fertilization on the distribution and morphology of corn root

Glyphosate-Resistant Italian Ryegrass (Lolium perennessp.multiflorum) Control with Fall-Applied Residual Herbicides

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