Control of cereal rye with a roller/crimper as influenced by cover crop phenology.
By Steven B. Mirsky, William S. Curran, D. Mortensen, M. Ryan, D. Shumway. 2009
161 citations recorded by the source corpus.
Adoption of reduced tillage practices have been driven by the need to enhance soil quality, minimize fi eld labor time, and scale up farm size. However, concerns about increased reliance on herbicides and demand for organically grown foods call for adoption of production practices that can reduce both tillage and herbicide use. Th is research study assessed the infl uence of planting and termination dates on mechanical cover crop control effi cacy to limit tillage and herbicide use using a roller/crimper. A thermal-based phenological model using growing degree days (GDD; base 4.4°C) was developed to predict cereal rye (Secale cereale L.) growth stage. Mechanical control of cereal rye increased as rye matured. Variations in cereal rye cultivar growth rates were observed; however, they responded similarly to rolling when terminated at the same growth stage. Consistent control was achieved at a Zadoks growth stage 61 (rye anthesis). A thermal-based phenological model separating the eff ects of heat units accumulated in the fall (Fall GDD ) from those accumulated in the spring (Spring GDD ) best predicted the phenological development of cereal rye. Predicting when cereal rye can be successfully controlled using a roller/crimper along with the use of the thermalbased phenological model should aid growers in decision-making regarding cereal rye planting and termination dates.
Subfields: Agronomy and Crop Science, Environmental Chemistry, Plant Science
View Paper: https://www.semanticscholar.org/paper/487f89538eebccc8c9c5754d89d480b119bd9d9a
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Citations in the corpus
- Cover-Crop Roller–Crimper Contributes to Weed Management in No-Till Soybean (2010, methodology): “Recent advances in cover-crop roller–crimper design have improved its operation, reducing vibrations (Kornecki et al. 2006), increasing planting efficiency (Sayre 2003), and improving efficacy in terminating cover crops (Ashford and Reeves 2003; Mirsky et al. 2009).”
- Timing of Cover-Crop Management Effects on Weed Suppression in No-Till Planted Soybean using a Roller-Crimper (2011, methodology): “The fallGDD and springGDD model was included because timing of fall cereal rye planting can influence the growth of cereal rye (Fowler 1983; Mirsky et al. 2009).”
- Rolled Winter Rye and Hairy Vetch Cover Crops Lower Weed Density but Reduce Vegetable Yields in No-tillage Organic Production (2011, background): “At the time of rolling–crimping, winter rye alone and in the WR/HV mixture was past anthesis, a stage that is recommended for effective killing (Mirsky et al., 2009).”
- Rolled Rye Mulch for Weed Suppression in Organic No-Tillage Soybeans (2010, background): “Corresponding author’s Email: chris_reberg-horton@ ncsu.edu Weed Science 2011 59:224–231 224 N Weed Science 59, March–April 2011 mat and crimping the stems without breaking them (Davis 2010; Mirsky et al. 2009).”