除草安全剂奈安不同施用浓度对烟草生长发育的影响  

Effects of Different Application Concentrations of Herbicide Safener Naian on Growth and Development of Tobacco

作　　者：岳伦勇[1] 朱列书 廖雪芳[1] 尹佳[1] 郭东海[1] 宋正熊[1] 王祖富[1] 

机构地区：[1]湖南农业大学农学院,湖南长沙410128 [2]中国烟草中南农业试验站

出　　处：《现代农业科技》2013年第11期125-126,共2页Modern Agricultural Science and Technology

摘　　要：湖南等全国各大烟区实行的是烟稻水旱轮作制度,为有效降低上茬作物水稻除草剂二氯喹啉酸的残留,减轻对下茬作物烟草的药害,找出奈安最佳使用浓度和方法,开展了除草安全剂奈安对烟株生长发育影响的试验。结果表明:在农艺性状、生理生化指标、化学成分方面,奈安施用浓度不是越高越好,应该按照其最佳浓度进行喷施,少则不能完全缓解除草剂的毒害作用,多则不但不会挽回损失,甚至还会带来更严重的毒害作用,实际生产中要严格尊重适量原则。通过本试验可以推测除草安全剂奈安合理施用浓度应该是在1 200 g/hm2左右。Hunan is the major areas of tobacco rice paddy rice-upland crop rotation System. In order to reduce the herbicide residue of quinclorac in stubble crop rice effectively,reduce the harm to the next stubble crops of tobacco,find out optimum concentration and apply method of Naian ,the experiment was carried out to study the effect of herbicide safener Naian on growth and development of tobacco. The results showed that considering the agronomic characters,physiological and biochemical index,chemical composition,etc ,the concentration of Naian is not the higher the better,and it should be sprayed in accordance with its optimum concentration. If the amount is less, then the toxicity of the herbicide can not be completely alleviated. If the amount is more, then the loss can not be retrieved, or even bring more serious toxicity. In the actual production, it should be strictly applied by the principle of appropriate amount. Through the experiment,it＇s presumed that the reasonable application concentration of herbicide safener Naian should be around 1 200 g/hm2.

关 键 词：除草安全剂 奈安 不同浓度 烟草 生长发育 影响 

分 类 号：S451.223[农业科学—植物保护]