• Journal of The Korean Society of Grassland and Forage Science
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• v.31 no.4
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• pp.389-394
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• 2011

This experiment was carried out to find effective weed control method of henbit deadnettle ($Lamium$ $amplexicaule$ L.) on cultivating field of Italian ryegrass ($Lolium$ $multiflorum$ Lam) using herbicide in Grassland and Forages Division, National Institute of Animal Science, RDA, Cheonan from 2008 to 2009. When Onehof was treated two times of spray, weed control ratio was most high as 90%, but this method can not be used because of much damage to Italian ryegrass. When MCPP was treated two times of spray, weed control ratio was high as 82%, and damage to Italian ryegrass was very insignificant. Especially, when the spray of MCPP was treated two times, dry matter yield of Italian ryegrass was 11,427 kg/ha, but that of non treatment was 1,658 kg/ha. That is to say, forage harvest was impossible in non treatment field. According to these results, to control henbit deadnettle on cultivating field of Italian ryegrass using herbicide, you need to treat with two times of spray of MCPP in mid-March. If you do, you can get regular harvest as much as 11,427 kg/ha.