| |
| Web URL(s): | https://dl.sciencesocieties.org/publications/aj/articles/94/5/1192
Last checked: 12/15/2016
Access conditions: Item is within a limited-access website |
|---|
| Publication Type:
| Refereed |
|---|
| Author(s): | Mueller-Warrant, George W.;
Rosato, S. Caprice |
|---|
| Author Affiliation: | Mueller-Warrant: National Forage Seed Production Resource Center, Corvallis, Oregon; and Rosato: Department of Crop and Soil Science, Oregon State University, Corvallis, Oregon |
|---|
| Title: | Weed control for stand duration perennial ryegrass seed production: II. Residue retained |
|---|
| Section: | Seed
Other records with the "Seed" Section
|
|---|
| Source: | Agronomy Journal. Vol. 94, No. 5, September/October 2002, p. 1192-1203. |
|---|
| Publishing Information: | Madison, WI: American Society of Agronomy |
|---|
| # of Pages: | 12 |
|---|
| Keywords: | TIC Keywords: Percent living ground cover; Seed yield; Seed production; Herbicide residues; Volunteer plants; Lolium perenne; Herbicides; Preemergence herbicides; Postemergence herbicides; Pendimethalin; Oxyfluorfen; Metolachlor; Diuron; Herbicide injury
|
|---|
| Abstract/Contents: | "Novel alternatives to open-field burning recently adopted by Oregon grass seed growers included retaining postharvest residues chopped into mulch. Because herbicide performance had never been tested under such conditions, research objectives included determining (i) efficacy of preemergence and postemergence herbicides on volunteer perennial ryegrass seedlings, (ii) whether treatments could be reapplied annually without damaging stands, (iii) whether common weeds would increase over time, and (iv) effects of volunteer seedlings on crop yield. Techniques were developed to incorporated pendimethalin [N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenamine] through crop residue. Tests were conducted in three commercial perennial ryegrass (Lolium perenne L.) fields sown in 1991. Preemergence incorporated pendimethalin at 2.2 kg a.i. ha-1 improved control of volunteer perennial ryegrass seedlings over postemergence treatments applied alone in 28 out of 46 comparisons, and 12 out of 18 failures to improve control occurred when postemergence treatments themselves adequately controlled weeds (avg. 5.5% ground covered by volunteer perennial ryegrass seedlings, or 93% control). Weed control by postemergence treatments varied greatly among years and sites. Early postemergence oxyfluorfen [2-chloro-1-(3-ethoxy-4-nitrophenoxy)-4-(trifluoromethyl)be nzene] plus metolachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methyle ty)acetamide] followed by late postemergence diuron [N'-(3,4-dichlorophenyl)-N,N-dimethylurea] was the most effective postemergence treatment (avg. 92% control), but damaged the crop in several instances. Uncontrolled volunteer seedlings reduced seed yield in no-postemergemce checks compared with treatments including postemergence applications in 19 out of 30 instances the first year, 24 out of 30 instances the second year, but only 3 out of 24 instances the third year. Susceptibiliy of perennial ryegrass to injury by herbicides increased with stand age but varied among sites." |
|---|
| Language: | English |
|---|
| References: | 20 |
|---|
| Note: | Tables |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Mueller-Warrant, G. W., and S. C. Rosato. 2002. Weed control for stand duration perennial ryegrass seed production: II. Residue retained. Agron. J. 94(5):p. 1192-1203. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=82827 |
| If there are problems with this record, send us feedback about record 82827. |
| Choices for finding the above item: |
|---|
| Web URL(s):
https://dl.sciencesocieties.org/publications/aj/articles/94/5/1192
Last checked: 12/15/2016
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: S 22 .A45 |
| Find from within TIC:
Digitally in TIC by record number. |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
