Disentangling the Effects of Tillage Timing and Weather on Weed Community Assembly
The effect of tillage timing on weed community assembly was assessed at four locations in the Northeastern United States by tilling the soil every two weeks from April to September and quantifying the emerged weed community six weeks after each tillage event. Variance partitioning analysis was used...
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| Format: | Article |
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MDPI AG
2017-08-01
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| Series: | Agriculture |
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| Online Access: | https://www.mdpi.com/2077-0472/7/8/66 |
| _version_ | 1818621400577998848 |
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| author | Stéphane Cordeau Richard G. Smith Eric R. Gallandt Bryan Brown Paul Salon Antonio DiTommaso Matthew R. Ryan |
| author_facet | Stéphane Cordeau Richard G. Smith Eric R. Gallandt Bryan Brown Paul Salon Antonio DiTommaso Matthew R. Ryan |
| author_sort | Stéphane Cordeau |
| collection | DOAJ |
| description | The effect of tillage timing on weed community assembly was assessed at four locations in the Northeastern United States by tilling the soil every two weeks from April to September and quantifying the emerged weed community six weeks after each tillage event. Variance partitioning analysis was used to test the relative importance of tillage timing and weather on weed community assembly (106 weed species). At a regional scale, site (75.5% of the explained inertia)—and to a lesser extent, timing—of tillage (18.3%), along with weather (18.1%), shaped weed communities. At a local scale, the timing of tillage explained approximately 50% of the weed community variability. The effect of tillage timing, after partitioning out the effect of weather variables, remained significant at all locations. Weather conditions, mainly growing degree days, but also precipitation occurring before tillage, were important factors and could improve our ability to predict the impact of tillage timing on weed community assemblages. Our findings illustrate the role of disturbance timing on weed communities, and can be used to improve the timing of weed control practices and to maximize their efficacy. |
| first_indexed | 2024-12-16T18:08:40Z |
| format | Article |
| id | doaj.art-d59e93aebd384e958c136e6c6dc3a2fe |
| institution | Directory Open Access Journal |
| issn | 2077-0472 |
| language | English |
| last_indexed | 2024-12-16T18:08:40Z |
| publishDate | 2017-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agriculture |
| spelling | doaj.art-d59e93aebd384e958c136e6c6dc3a2fe2022-12-21T22:21:51ZengMDPI AGAgriculture2077-04722017-08-01786610.3390/agriculture7080066agriculture7080066Disentangling the Effects of Tillage Timing and Weather on Weed Community AssemblyStéphane Cordeau0Richard G. Smith1Eric R. Gallandt2Bryan Brown3Paul Salon4Antonio DiTommaso5Matthew R. Ryan6Agroécologie, AgroSup Dijon, INRA, Université Bourgogne Franche-Comté, F-21000 Dijon, FranceDepartment of Natural Resources and the Environment, University of New Hampshire, Durham, NH 03824, USASchool of Food and Agriculture, University of Maine, Orono, ME 04469, USASchool of Food and Agriculture, University of Maine, Orono, ME 04469, USAUSDA-NRCS Soil Health Division, Big Flats Plant Materials Center, Corning, NY 14830, USASoil and Crop Sciences Section, School of Integrative Plant Science, Cornell University, Ithaca, NY 14853, USASoil and Crop Sciences Section, School of Integrative Plant Science, Cornell University, Ithaca, NY 14853, USAThe effect of tillage timing on weed community assembly was assessed at four locations in the Northeastern United States by tilling the soil every two weeks from April to September and quantifying the emerged weed community six weeks after each tillage event. Variance partitioning analysis was used to test the relative importance of tillage timing and weather on weed community assembly (106 weed species). At a regional scale, site (75.5% of the explained inertia)—and to a lesser extent, timing—of tillage (18.3%), along with weather (18.1%), shaped weed communities. At a local scale, the timing of tillage explained approximately 50% of the weed community variability. The effect of tillage timing, after partitioning out the effect of weather variables, remained significant at all locations. Weather conditions, mainly growing degree days, but also precipitation occurring before tillage, were important factors and could improve our ability to predict the impact of tillage timing on weed community assemblages. Our findings illustrate the role of disturbance timing on weed communities, and can be used to improve the timing of weed control practices and to maximize their efficacy.https://www.mdpi.com/2077-0472/7/8/66canonical correspondence analysisenvironmental gradientgermination timingvariance partitioningweed communityweed seed bank |
| spellingShingle | Stéphane Cordeau Richard G. Smith Eric R. Gallandt Bryan Brown Paul Salon Antonio DiTommaso Matthew R. Ryan Disentangling the Effects of Tillage Timing and Weather on Weed Community Assembly Agriculture canonical correspondence analysis environmental gradient germination timing variance partitioning weed community weed seed bank |
| title | Disentangling the Effects of Tillage Timing and Weather on Weed Community Assembly |
| title_full | Disentangling the Effects of Tillage Timing and Weather on Weed Community Assembly |
| title_fullStr | Disentangling the Effects of Tillage Timing and Weather on Weed Community Assembly |
| title_full_unstemmed | Disentangling the Effects of Tillage Timing and Weather on Weed Community Assembly |
| title_short | Disentangling the Effects of Tillage Timing and Weather on Weed Community Assembly |
| title_sort | disentangling the effects of tillage timing and weather on weed community assembly |
| topic | canonical correspondence analysis environmental gradient germination timing variance partitioning weed community weed seed bank |
| url | https://www.mdpi.com/2077-0472/7/8/66 |
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