meighani, F., mirvakili, S., jahedi, A., baghestani, M., shimi, P. (2011). Study of 2,4-DB (Butress) Efficacy in Weed Control in Established Alfalfa (Medicago sativa). , 6(2), 67-77.
fariba meighani; saeed mohammad mirvakili; ajang jahedi; mohammad ali baghestani; parviz shimi. "Study of 2,4-DB (Butress) Efficacy in Weed Control in Established Alfalfa (Medicago sativa)". , 6, 2, 2011, 67-77.
meighani, F., mirvakili, S., jahedi, A., baghestani, M., shimi, P. (2011). 'Study of 2,4-DB (Butress) Efficacy in Weed Control in Established Alfalfa (Medicago sativa)', , 6(2), pp. 67-77.
meighani, F., mirvakili, S., jahedi, A., baghestani, M., shimi, P. Study of 2,4-DB (Butress) Efficacy in Weed Control in Established Alfalfa (Medicago sativa). , 2011; 6(2): 67-77.

Study of 2,4-DB (Butress) Efficacy in Weed Control in Established Alfalfa (Medicago sativa)

دانش علف‌های هرز ایران
Article 7, Volume 6, Issue 2, December 2010, Pages 67-77    PDF (231.83 K)
Document Type: Research Article
Authors
fariba meighani; saeed mohammad mirvakili; ajang jahedi; mohammad ali baghestani; parviz shimi
Abstract
In this study the efficacy of 2,4-DB (Butress 42.3%EC) on weed control of alfalfa was compared with commonly used herbicides in Alfalfa. This experiment was conducted in Hamedan and Yazd during 1386-1387 in a randomized complete block design with 3 replications and 11 treatments in established Alfalfa. Treatments were included of bentazone (Bazagran) (SL 48%) at doses of 2, 3, and 4 L/ha, 2;4-DB (Buterss) (EC 42.3%) at doses of 2.5, 2.8, 3.1, and 3.5 L/ha, imazethapyr (Pursuit) (SL 10%) at doses of 0.4, 0.7, and 1 L/ha and weedy check as treatment.The effect of herbicides on alfalfa biomass and the biomass and weeds biomass and density were studied during 3 harvestings. In Hamedan, all herbicides treatments had no phytotoxocity on alfalfa.Only bentazone caused chlorosis in alfalfa that recovered after 1 to 2 weeks. Butress not only was suitable to control the weeds, especially in field bindweed (Convolvulus arvensis) control. In Yazd, 2,4-DB specially in its higher doses had partial phytotoxicity on alfalfa, but controlled well Malva, Lactuca and field bindweed.  Butress reduced the density and biomass of field bindweed by 100% and 84%, respectively. As a conclusion, 2,4-DB specially in its higher doses was the best herbicide to control field bindweed
Keywords
chemical control; Alfalfa harvesting; herbicide
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