摘要
草甘膦与腐植酸钠混用(简称混用)试验表明,混用比草甘膦单独使用防除效果好,有明显的增效作用,其增效作用的大小与喷药时间有关。在杂草生长高峰期(5～7月)喷施混用液,增效最为显著,可提高防除效果13.4%～19.7%。9月以后混用无效,甚至为负值。混用液增效作用的大小还与混用液中的腐植酸钠浓度有关,混用低浓度的腐植酸钠最佳浓度为100×10-6～200×10-6,混用比单用草甘膦单位面积可减少用药量约10%～20%。
Glyphosate is a broad spectrum herbicide used to kill crop weeds. When it was mixed with humic acid natrium, the killing effcct is obviously increased. During the weed's growing season from June to July, the efficacy could be increased by 13.4%～19.7%. After September, it was not good to mix the glyphosate with humic acid natrium. The efficacy was also relative to the consistency of the humic acid natrium in the mixed liquor, and the best consistency was 100×10^(-6)～200×10^(-6). When the mixed liquor was used, the application could be saved by 10%～20%.
出处
《西北林学院学报》
CSCD
北大核心
2004年第2期47-49,60,共4页
Journal of Northwest Forestry University
基金
科技部农业科技成果转化资助项目"云南核桃
板栗新品种(系)扩繁与丰产栽培示范"(02EFN215300557)
关键词
草甘膦
腐植酸钠
白茅
glyphosate
humic acid natrium
Imperata eylindrica
