Meta-Analysis of Soybean Yield Response to Foliar Fungicides Evaluated from 2005 to 2018 in the United States and Canada

Kandel Yuba R.; Hunt Cathi; Ames KeithArneson NicholasBradley Carl A.Byamukama EmmanuelByrne AdamChilvers Martin IGiesler Loren J.Halvorson JessicaHooker David C.Kleczewski Nathan M.Malvick Dean K.Markell SamuelPotter BrucePedersen WayneSmith Damon L.Tenuta Albert U.Telenko Darcy E. P.Wise Kiersten A.Mueller Daren S.

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Meta-Analysis of Soybean Yield Response to Foliar Fungicides Evaluated from 2005 to 2018 in the United States and Canada

机译：Meta-Analysis of Soybean Yield Response to Foliar Fungicides Evaluated from 2005 to 2018 in the United States and Canada

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Random effect meta-analyses were performed on data from 240 field trials conducted between 2005 and 2018 across nine U.S. states and Ontario, Canada, to quantify the yield response of soybean after application of foliar fungicides at beginning pod (R3) stage. Meta-analysis showed that the overall mean yield response when fungicide was used compared with not applying a fungicide was 2.7% (110 kg/ha). Moderator variables were also investigated and included fungicide group, growing season, planting date, and base yield, which all significantly influenced the yield response. There was also evidence that precipitation from the time of planting to the R3 growth stage influenced yield when fungicide was used (P = 0.059). Fungicides containing a premix of active ingredients from multiple groups (either two or three ingredients) increased the yield by 3.0% over not applying a fungicide. The highest and lowest yield responses were observed in 2005 and 2007, respectively. Better yield response to fungicides (a 3.0% increase) occurred when soybean crops were planted not later than 21 May and when total precipitation between planting and the R3 application date was above historic averages. Temperatures during the season did not influence the yield response. Yield response to fungicide was higher (a 4.7% increase) in average yield category (no spray control yield 2,878 to 3,758 kg/ha) and then gradually decreased with increasing base yield. Partial economic analyses indicated that use of foliar fungicides is less likely to be profitable when foliar diseases are absent or at low levels.

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《Plant Disease》 |2021年第5期|1382-1389|共8页
作者
Kandel Yuba R.; Hunt Cathi; Ames KeithArneson NicholasBradley Carl A.Byamukama EmmanuelByrne AdamChilvers Martin IGiesler Loren J.Halvorson JessicaHooker David C.Kleczewski Nathan M.Malvick Dean K.Markell SamuelPotter BrucePedersen WayneSmith Damon L.Tenuta Albert U.Telenko Darcy E. P.Wise Kiersten A.Mueller Daren S.;
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Iowa State Univ, Dept Plant Pathol & Microbiol, Ames, IA 50011 USA;

Univ Illinois, Dept Crop Sci, Urbana, IL 61801 USA;

Univ Wisconsin, Dept Agron, Madison, WI 53706 USAUniv Kentucky, Dept Plant Pathol, Res & Educ Ctr, Princeton, KY 42445 USASouth Dakota State Univ, Dept Agron Hort & Plant Sci, Brookings, SD 57007 USAMichigan State Univ, Dept Plant Soil & Microbial Sci, E Lansing, MI 48824 USAUniv Nebraska, Dept Plant Pathol, Lincoln, NE 68583 USANorth Dakota State Univ, Dept Plant Pathol, Fargo, ND 58108 USAUniv Guelph, Dept Plant Agr, Ridgetown Campus, Ridgetown, ON N0P 2C0, CanadaUniv Minnesota, St Paul, MN 55108 USAUniv Wisconsin, Dept Plant Pathol, Madison, WI 53706 USAOntario Minist Agr Food & Rural Affairs, Ridgetown, ON N0P 2C0, CanadaPurdue Univ, Dept Bot & Plant Pathol, W Lafayette, IN 47907 USA;

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正文语种英语
中图分类植物保护;
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meta-analysis; foliar fungicide; disease management; partial economic analysis; yield response;

Meta-Analysis of Soybean Yield Response to Foliar Fungicides Evaluated from 2005 to 2018 in the United States and Canada

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