Publication Date
1985
Location
Kyoto Japan
Description
This experiment was carried out during 1983-1984 to determine an effective method for the introduction of pasture species on nonarable hill country without cultivation. In this experiment, 1.8 and 2.8kg a.i.ha·1 rates of glyphosate and a 0.7kg a.i.ha·1 rate of paraquat were applied, and also 30, 45 and 60 days intervals beween spraying and sowing were used.
Establishment of orchardgrass (Dactylis glomerata) was not affected by the application of herbicides, but that of ladino clover (Trifolium repens) was significantly affected by glyphosate and paraquat. It was found that glyphosate and paraquat have no apparent soil residual activity or pre-emergence effect when sprayed 30 to 60 days before sowing. Dry matter yield of pasture species on the herbicide treatments was significantly higher than that on the unsprayed treatments. The highest yield was obtained from the 1.8kg a.i. ha·1 rate of glyphosate 45 days before sowing. Botanical analysis at the final cut showed that shrubs and native grass of original site were reduced to 5% by glyphosate application, but those on the unsprayed control were still 51 % . Results indicated that glyphosate was more effective to control resident shrubs and grass than para��uat, and good establishment and higher yield of surface-sown pasture species can be obtained by spraying 1.8 to 2.8kg a.i. ha· of glyphosate, 30 to 45 days before sowing.
Citation
Kim, D A.; Kwon, C H.; Lim, S H.; Han, W B.; and Kim, Y J., "Effects of Rate and Timing of Glyphosate and Paraquat Application on Establishment and Production of Surface- Sown Pasture Species" (1985). IGC Proceedings (1985-2023). 51.
(URL: https://uknowledge.uky.edu/igc/1985/ses6/51)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Effects of Rate and Timing of Glyphosate and Paraquat Application on Establishment and Production of Surface- Sown Pasture Species
Kyoto Japan
This experiment was carried out during 1983-1984 to determine an effective method for the introduction of pasture species on nonarable hill country without cultivation. In this experiment, 1.8 and 2.8kg a.i.ha·1 rates of glyphosate and a 0.7kg a.i.ha·1 rate of paraquat were applied, and also 30, 45 and 60 days intervals beween spraying and sowing were used.
Establishment of orchardgrass (Dactylis glomerata) was not affected by the application of herbicides, but that of ladino clover (Trifolium repens) was significantly affected by glyphosate and paraquat. It was found that glyphosate and paraquat have no apparent soil residual activity or pre-emergence effect when sprayed 30 to 60 days before sowing. Dry matter yield of pasture species on the herbicide treatments was significantly higher than that on the unsprayed treatments. The highest yield was obtained from the 1.8kg a.i. ha·1 rate of glyphosate 45 days before sowing. Botanical analysis at the final cut showed that shrubs and native grass of original site were reduced to 5% by glyphosate application, but those on the unsprayed control were still 51 % . Results indicated that glyphosate was more effective to control resident shrubs and grass than para��uat, and good establishment and higher yield of surface-sown pasture species can be obtained by spraying 1.8 to 2.8kg a.i. ha· of glyphosate, 30 to 45 days before sowing.
