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Publication Type:
| Report |
Content Type: | Abstract or Summary only |
Author(s): | Schwabauer, R. A.;
Goetze, N. R. |
Author Affiliation: | Oregon State University, Corvallis, Oregon |
Title: | Effect of soil mixture and cover on residual activity of Poa annua herbicides |
Section: | Crop Science Divisions: Division C-5 -- Turfgrass Management Other records with the "Crop Science Divisions: Division C-5 -- Turfgrass Management" Section
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Meeting Info.: | Denver, Colorado: November 17-21, 1963 |
Source: | Agronomy Abstracts: Pan American Agronomy: 1963 Annual Meetings. 1963, p. 119-120. |
Publishing Information: | Madison, Wisconsin: American Society of Agronomy |
# of Pages: | 2 |
Abstract/Contents: | "Greenhouse studies, using Poa annua L. as a bioassay to determine influence of cover and soil mixture on residual activity of herbicides, demonstrated significant interaction between herbicides and cover and herbicides and soil mixture. Four soil mixtures, including sand, clay, sand-organic matter, and clay-organic matter, were compounded. Equal volumes of seed were sown on all plots and covered with either sand or organic matter stripped from a Highland bentgrass lawn. Nine herbicides were applied at various rates. Counts of healthy plants were made two weeks after planting. Residual activity of herbicides was measured by replanting four and eight weeks after original herbicide treatment. Diphenamide at 4, 6 and 8 pounds per acre, and trifluralin at 1 and 2 pounds per acre had strongest residual activity eight weeks after treatment. Endothal and one of its analogs exhibited better residual activity under sand cover; two experimental herbicides had better activity under organic matter cover. Trifluralin, zytron, and two experimental herbicides had best residual activity in sand-soil mixture; endothal, dacthal, and another experimental herbicide had highest activity in clay-organic soil mixture." |
Language: | English |
References: | 0 |
Note: | This item is an abstract only! |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Schwabauer, R. A., and N. R. Goetze. 1963. Effect of soil mixture and cover on residual activity of Poa annua herbicides. Agron. Abr. p. 119-120. |
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