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我县苎麻田杂草发生普遍,尤以头刀麻受害为重,影响了苎麻的产量和品质。目前人工锄草,不仅花工多,而且易伤麻苗(芽)。为此,在杂草调查的基础上,进行了化学除草试验,现简报如下: (一)麻田主要杂草据1986～1987年调查,麻田常见杂草有8科10多种,杂草密度162～613.8株/米~2,平均372株/米~2;其中禾本科杂草154.8～534.6株/米~2,平均338.4株/米~2,占90.97％。 (二)化学防除试验试验于麻田禾本科杂草4～6叶期,选用10％禾草克乳油、12.5％盖草能乳油、12.5％拿捕净机油乳剂、15％精稳杀得等4种除草剂,每亩用药50毫升,兑水45公斤茎叶处理,以人
The occurrence of weeds in ramie fields in our county is widespread, especially in the area of ramie, affecting the yield and quality of ramie. At present, artificial weeding, not only labor-intensive, but also vulnerable to Mau Miao (bud). Therefore, based on weed surveys, chemical weeding tests were conducted, and the brief reports are as follows: (I) Major Weeds in Arable Fields According to the survey from 1986 to 1987, common weeds in Matian have 8 families and 10 species with weed density of 162 ~ 613.8 plants / m ~ 2, an average of 372 plants / m ~ 2; of which weeds 154.8 ~ 534.6 plants / m ~ 2, an average of 338.4 plants / m ~ 2, accounting for 90.97%. (B) Chemical Control Test In the 4 to 6 leaf stage of weed grasses, we selected 10% gramineurin, 12.5% cauliflower EC, 12.5% net oil emulsion, 15% Herbicide, 50 ml per acre, watered 45 kg of stems and leaves to people