Carryover of DPX-PE350 to Grain Sorghum (<i>Sorghum bicolor</i>) and Soybean (<i>Glycine max</i>) on Two Arkansas Soils

Jordan, David L.; Johnson, David H.; Johnson, William; Kendig, J. A.; Frans, R. E.; Talbert, Ronald E.

doi:10.1017/s0890037x00037489

Cited by 11 publications

(20 citation statements)

References 22 publications

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“…The similar field persistence recorded in loam and clay loam soils is in agreement with the results of Johnson et al (1993), Jordan et al (1993b), and Webster and Shaw (1996). Furthermore, the increased field persistence of pyrithiobac with increasing application rate agrees with the results of Jordan et al (1993b) and Webster and Shaw (1996).…”

Section: Pyrithiobac Field Persistencesupporting

confidence: 88%

Activity, adsorption, mobility, and field persistence of pyrithiobac in three soils

et al. 2005

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Petri dish bioassays, based on root response of corn grown in soil and perlite, were used to study the activity, adsorption, and leaching of pyrithiobac in a clay, loam, and a clay loam soils containing 2.3, 1.4, and 1.3% organic matter, respectively. Both bioassays indicated that activity of pyrithiobac (reduction of corn root length) increased with increasing herbicide concentration, but in a nonlinear manner, particularly at higher concentrations. Activity of pyrithiobac was similar in clay loam and loam soils, but was lower in clay soil. Adsorption distribution coefficients (K d) for the clay, loam, and clay loam soils were 0.56, 0.10, and 0.24, respectively. Pyrithiobac leached through all three soils, and biologically available herbicide was detected below 30 cm in all soils; however, the amount leached through the clay soil was lower than that leached through the other two soils. Field persistence of pyrithiobac applied preplant incorporated (PPI), preemergence (PRE), or postemergence (POST) at 68, 102, or 136 g ha−1 was similar in loam and clay loam soils, but was more persistent in clay soil. Pyrithiobac applied POST in clay and loam soils was more persistent than that applied PPI or PRE; however, in clay soil field persistence of POST pyrithiobac was similar with that applied PPI or PRE. Biologically available residues were not detected in 0- to 10-cm soil depth 120 d after any herbicide treatment applied either PPI or PRE in all soils, but this was not the case for pyrithiobac applied POST in the loam soil. Adsorption of pyrithiobac was very low in all three soils, and this was the reason for its increased mobility even below 30-cm depth in all soils. The field persistence of pyrithiobac was generally less than one growing season. However, some pyrithiobac may have moved deeper in the soil and could be harmful to rotational crops after plowing or through capillary movement upward.

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Section: Pyrithiobac Field Persistencesupporting

confidence: 88%

Activity, adsorption, mobility, and field persistence of pyrithiobac in three soils

et al. 2005

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“…Tolerant crops and weeds rapidly metabolize these herbicides to nonherbicidal compounds, whereas susceptible plants do not have this ability. Because of the highly active nature of these herbicides at low rates, persistence and potential carryover to rotational crops is a key consideration for planning crop rotational programs (Jordan et al 1993b;Renner et al 1988;Wilcut and Askew 1999;Wilcut et al 1995).…”

Section: Introductionmentioning

confidence: 99%

“…Several ALS-inhibiting herbicides have caused injury to rotational crops (Barnes et al 1989;Jordan et al 1993b;Monks and Banks 1991;Renner et al 1988). Soybean is a common rotational crop with cotton in North Carolina.…”

Section: Introductionmentioning

confidence: 99%

Soybean Response to Residual and In-Season Treatments of Trifloxysulfuron

2006

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Experiments were conducted from 1998 to 2000 at Rocky Mount, NC, in weed-free environments to determine soybean tolerance to preplant (PP) applications of trifloxysulfuron and the potential for trifloxysulfuron applied preemergence (PRE) and postemergence (POST) to cotton to injure soybean grown in rotation the following year. Trifloxysulfuron at 3.75 and 7.5 g ai/ha applied PP 2 wk before seeding injured conventional soybean less than 5%, whereas no injury was observed when seeding was delayed 4 or 6 wk after PP treatment. No injury to sulfonylurea-resistant soybean (SR) was observed for any treatment. Soybean yields were not influenced by trifloxysulfuron treatment. Cotton injury was 7% or less with trifloxysulfuron applied PRE or POST at 3.75 and 7.5 g/ha. Trifloxysulfuron at 15 g/ha PRE or POST injured cotton a maximum of 14 to 18%. Trifloxysulfuron did not reduce cotton lint yields regardless of method or rate of application. Both conventional and SR soybean were not injured nor were yields influenced by trifloxysulfuron applied PRE or POST the previous year to cotton.

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“…Tolerant crops and weeds rapidly metabolize these herbicides to nonherbicidal compounds, whereas susceptible plants do not have this ability. Due to the highly active nature of these herbicides at low rates, persistence and potential to carryover to rotational crops is a key consideration for planning crop rotational programs (Jordan et al 1993b;Renner et al 1988;Wilcut and Askew 1999;Wilcut et al 1995).…”

Section: Introductionmentioning

confidence: 99%

“…Several ALS-inhibiting herbicides have caused injury to rotational crops (Barnes et al 1989;Curran et al 1991;Jordan et al 1993b;Monks and Banks 1991;Renner et al 1988). However, IR and IT corn cultivars have increased tolerance to imidazolinone and other ALS-inhibiting herbicides (Bell et al 1998;Currie et al 1995;Ducar et al 2004;Monks et al 1996;Siehl et al 1996;.…”

Section: Introductionmentioning

confidence: 99%

Corn (Zea maysL.) Response to Trifloxysulfuron

Porterfield

Wilcut

2006

Weed technol.

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Experiments were conducted in weed-free environments to determine corn tolerance to trifloxysulfuron applied PRE or POST, and to determine the potential for trifloxysulfuron applied PRE or POST to cotton to injure corn grown in rotation the following year. Trifloxysulfuron at 3.75, 7.5, or 15 g ai/ha applied PRE or POST resulted in 98% stand reduction of imidazolinone-tolerant (IT) corn and 100% stand reduction in conventional corn. No injury occurred to imidazolinone-resistant (IR) corn. A corn cultivar yield response was observed, with conventional nontreated corn yielding 8,850 kg/ha and greater than nontreated IT corn at 7,900 kg/ha. Nontreated IR corn yielded the least, at 6,400 kg/ha, and these yields were equivalent to trifloxysulfuron-treated IR corn at 6,590 kg/ha. Cotton treated with trifloxysulfuron PRE at any rate was injured less than 8%. Both trifloxysulfuron at 7.5 g/ha POST and pyrithiobac at 70 g ai/ha POST injured cotton 11% early in the season. Neither trifloxysulfuron nor pyrithiobac influenced weed-free cotton lint yields. When grown in rotation, corn was not injured by trifloxysulfuron or pyrithiobac applied the previous year to cotton, and yields were not influenced.

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Carryover of DPX-PE350 to Grain Sorghum (Sorghum bicolor) and Soybean (Glycine max) on Two Arkansas Soils

Cited by 11 publications

References 22 publications

Activity, adsorption, mobility, and field persistence of pyrithiobac in three soils

Activity, adsorption, mobility, and field persistence of pyrithiobac in three soils

Soybean Response to Residual and In-Season Treatments of Trifloxysulfuron

Corn (Zea maysL.) Response to Trifloxysulfuron

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