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首页> 外文期刊>Pakistan journal of botany >Weed control measures for controlling the density of Canada thistle ( Cirsium arvense (L.) Scop. in wheat ( Triticum aestivum L.)
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Weed control measures for controlling the density of Canada thistle ( Cirsium arvense (L.) Scop. in wheat ( Triticum aestivum L.)

机译：杂草控制加拿大蓟密度的控制措施（Cirsium Arvense（L.）Scop。小麦（Triticum aestivum L）

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摘要

Canada thistle [ Cirsium arvense (L.) Scop.] is a major weed in semi-arid areas of Punjab, Pakistan. studies were conducted during 2010-11 and 2011-12 at University Research Farm, Chakwal road, Rawalpindi to study Canada thistle control and density dynamics in wheat grown under contrasting environments and diverse cultural, mechanical and chemical thistle control measures. Experiments were carried out in randomized complete block design with four replications. Canada thistle density was monitored at five stages during wheat growing season. The results revealed during wet winter season, Canada thistle was effectively controlled (90-97%) when dry-season tillage was integrated with fertilizer placement in a strip along crop row and with single application of full dose of clopyralid. The drier winter season witnessed significant thistle control (91%) with half dose of clopyralid when integrated with dry-season tillage, fertilizer placement followed by inter-row cultivation and remained at par with experimental treatment where full dose of clopyralid was applied. The thistle dynamics data showed that higher thistle re-sprouting during wetter environment decreased efficiency of thistle control in cultural and mechanical control measures applied either in integrated or sole fashion.
机译：加拿大蓟[Cirsium Arvense（L.）Scop。]是巴基斯坦旁遮普地区半干旱地区的主要杂草。 2010 - 11年和2011年和2011-12年在大学研究场所进行的研究进行了研究，Rawalpindi，在对比环境和不同的文化，机械和化学蓟控制措施下，小麦的加拿大蓟控制和密度动力学研究。在随机完整块设计中进行了实验，具有四种复制。在小麦生长季节，在五个阶段监测加拿大蓟密度。在冬季冬季揭示的结果显示，加拿大蓟有效控制（90-97％）当干季耕作与沿着作物行的条带中的肥料放置并单一适用于氯吡啶的单一施用时。干燥器冬季目睹了显着的蓟控制（91％），随着干季耕作，肥料放置后，肥料放置后，施肥后栽培，含有群培养，并持有实验治疗的施用，其中施用全剂量的氯吡啶。蓟动力学数据显示，在综合或唯一时装，湿润环境期间在湿润环境期间更高的蓟重新发芽降低了蓟控制的仪器控制措施。

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