| |
Publication Type:
| Report |
Content Type: | Abstract or Summary only |
Author(s): | Brooks, R. L.;
Merkle, M. G.;
Chandler, J. M. |
Author Affiliation: | Texas Agric. Exper. Statio, College Station, TX. |
Title: | Efficacy of Glyphosate/Adjuvant Combinations for Johnsongrass Control |
Meeting Info.: | Held: January 14-16, 1985, Houston, TX. |
Source: | Proceedings of the 38th Southern Weed Science Society. Vol. 38, 1985, p. 46. |
Publishing Information: | Southern Weed Science Society |
Keywords: | TIC Keywords: Glyphosate; Adjuvants; Sorghum halepense; Weed control; Acid equivalent
|
Abstract/Contents: | "Johnsongrass is a troublesome weed in Texas in most row crops. Glyphosate and SC-0224 have given excellent control of this weed. Previous rates hav enhanced activity when combined with the adjuvant ammonium sulfate. A significant enhancement occurs when the treatments are applied during the summer and fall. No enhancement was observed when applied in the spring or at rates of 0.83 kg/ha acid equivalent and higher. During 1983 and 1984, logarithmic-applications of ammonium sulfate with the rate of SC-0224 or glyphosate held constant showed that rates above 5.55-8.88 kg/ha have an antagonistic effect on Johnsongrass control. There were not differences between SC-0224 and glyphosate at the rate of 0.44 kg/ha a.e. During the fall of 1984, another experiment showed that glyphosate at 0.42 kg/ha a.e. had enhanced activity when combined with various adjuvants. Adjuvants that showed significant enhancement from best to worst were: Frigate = ammonium sulfate, non-ionic surfactant, nor surfactant. At the higher rates of glyposate, these enhancement effects were not evident." |
Language: | English |
References: | 0 |
Note: | This item is an abstract only! |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Brooks, R. L., M. G. Merkle, and J. M. Chandler. 1985. Efficacy of Glyphosate/Adjuvant Combinations for Johnsongrass Control. Proc. Meet. South. Weed Sci. Soc. 38:p. 46. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=11670 |
| If there are problems with this record, send us feedback about record 11670. |
| Choices for finding the above item: |
| MSU catalog number: SB 611 .S6 v.38 |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |