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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Samples, T. J.;
Brede, A. D. |
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| Author Affiliation: | Oklahoma State University |
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| Title: | Bermudagrass Establishment with Selected Preemergence Herbicides and Activated Charcoal. |
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| Source: | Southern Weed Science Society Proceedings. Vol. 39, January 1986, p. 139. |
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| Publishing Information: | Nashville, TN: Southern Weed Science Society. |
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| Keywords: | TIC Keywords: Activated charcoal; Cynodon; Herbicides
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| Abstract/Contents: | "A field investigation was conducted in 1984 at the Oklahoma Turfgrass Research Center, Stillwater, to evaluate the effectiveness of activatd charcoal applied to the soil surface directly above bermudagrass [Cynodon dactylon (L.) Pers., hybrid 'Guymon x 10978b'] seeds in reducing phytotoxicity of eight preemergence herbicides. Identical treatments at two sites were arranged in a split-plot design with four replications. Preemergence herbicides were whole plots, and 2.5, 5.1, and 10.2 cm diameter circles containing activated charcoal at 1120 kg/ha on the soil surface above the seed zone were subplots. The effect of five premergence herbicides, two rates of activated charcoal, and two row widths on establishment of bermudagrass (hybrid 'Guymon x 10978b') from seed was evaluated during 1985 at two adjacent sites. Treatments were arranged in a 6 by 2 by 2 (herbicide, row width, activated charcoal rate) factorial design with four replications per experimental site. Generally, an increase in diameter of an activated charcoal circle on the soil surface directly above the seed zone improved protection of bermudagrass from preemergence herbicides. Sulfometuron methyl, metribuzin, and atrazine at 0.1, 0.7, and 1.3 kg/ha respectively, reduced root growth of bermudagrass established within charcoal at both experimental sites. Activated charcoal applied at 1120 kg/ha within a 5 cm2 circular area on the surface of a Norge (udic Paleustoll) loam subsoil above bermudagrass seeds inactivated a preemergence pronamide application of 1.1 kg/ha. Activated charcoal in a 5.1 cm band on a Norge loam topsoil surface directly above the seeded row protected bermudagrass seedlings from diuron at 2.7 kg/ha, pronamide at 1.1 kg/ha, and terbutryn at 2.2 kg/ha. Increasing rate of activated charcoal from 560 to 1120 kg/ha did not influence seedling numbers within rows 46 cm in width. Bermudagrass shoot mass above seeded rows 91 cm wide was greater in contrast to rows spaced 41 cm apart. Bermudagrass establishment varied with row width and premergence herbicide application on Norge loam topsoil and subsoil with slopes of 1, 5, 6, and 8 percent." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Samples, T. J., and A. D. Brede. 1986. Bermudagrass Establishment with Selected Preemergence Herbicides and Activated Charcoal.. South. Weed Sci. Soc. Proc. 39:p. 139. |
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MSU catalog number: SB 611 .S6 |
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