摘要:
本文阐述稻田专用除草剂了草胺,用于防除芥兰菜、蕹菜等4个科9种菜地杂草的技术研究.通过适用范围、不同剂量和施药技术的试验、示范、推广,探明用于防除蕹菜、(Ipomoea reptans)、套种丝瓜(Luffa cylindrica)、小白菜(Brassica chinensis)、菠菜(Spinacia oleracea)、大白菜(Brassica pekinensis)、芥蓝菜(Brassica alboglabra)。甘蓝菜(Brassica oleracea L.var.capitata)、芥菜(Brassica juncea (L.)Cossvar.foliosa)和油菜(Brassica napus)等菜地杂草的有效剂量为60-90g/亩,其杀草谱广、药效稳定、综合效果达80.7-93.5%.其中对8种一年生禾本科杂草、3种一年生莎草科杂草、4种菊科杂草和4种玄参科杂草的平均防除效果分别高达91.5%、98.6%、93.4%和95.8%。同时证实,在轮作倒茬频繁和多种蔬菜间、套种地应用本技术,可达到经济、安全、有效。为丁草胺开辟了新的使用领域。7年来,仅福州市就应用推广达11万多亩次,社会效益显著,是我省菜地最经济的化学除草剂。
关键词:
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丁草胺 /
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防除蔬菜杂草 /
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残留量 /
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安全
Abstract:
The paper set forth the study on the applied techniques of the herbicide, Buta-chlor, that was particularly used in rice fields originally, control efficiency in vegetable fields. The results showed that the effective dosage of the herbicide used in water spinach (Ipomoea repians), interplanting dishcloth gourd (Luffa cylindrica), pak choi (Brassica chmensis), spinach (Spinacia oleracea), chinese cabbage (Brassica pekinensis), cabbage mustard (Brassica alhoglabra). cabbage (Brassica oleracea var capitata), leaf mustard (Brassica juncea) and rape (Brassica napus) vegetable fields is 60-90 g/M u. The total control rates are 80.7-93.5% among which, the average rates of 8 species of annual weeds in Gramineae, 3 species of annual weeds in Cyperaceae and 4 species of weeds in Compositae and Scrophu 1 ariaceae are 91.5%, 98.6%, 93.4% and 95.8% respectively. At the same time, it was proved that Butachlor was safe and economic for using in vegetable fields. The herbicids. Butachlor, has been used more than 100000 Mu of vegetable fields in past seven years.
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