نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه زراعت زراعت، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران،
2 گروه زراعت، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران ، ایران
3 دانشکده علوم کشاورزی، دانشگاه فنی و حرفه ای، تهران، ایران
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
To evaluate the effect of tank mixing surfactants and nitrogen sources on the efficacy of tribenuron methyl herbicide, a greenhouse experiment was conducted as a factorial arrangement in a completely randomized design with four replications in the faculty of agriculture at Tarbiat Modares University in 2021. Experimental treatments included four rates of tribenuron methyl (0, 4.5, 9, and 15 g active ingredient (ai) ha-1), as a post-emergence herbicide: nitrogen sources (control without nitrogen, ammonium nitrate, ammonium sulfate, ammonium acetate, and asparagine amino acid): and types of surfactants (control without surfactant, amphoteric, anionic, and two non-ionic surfactants). The results showed that the values of greenness index, leaf area, and total dry weight were highest under control (no herbicide application), and decreased as herbicide rate increased. Application of nitrogen sources and surfactants with herbicide separately increased its efficiency compared to the non-use of additives, so that ED90 decreased from 15 to 6 by ammonium nitrate and ammonium acetate and from 15 to 14 and 11.02 g ai ha-1 by sodium lauryl ether sulfate and castor oil ethoxylate, respectively. The mixture of surfactant and nitrogen with tribenuron methyl was more effective than herbicide application with each of these additives alone. Generally, the application of ammonium nitrate, ammonium acetate, or ammonium sulfate with lauryl alcohol ethoxylate, ammonium nitrate with castor oil ethoxylate, and ammonium acetate with sodium lauryl ether sulfate are recommended.
کلیدواژه‌ها [English]
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