3种除草剂对玉米郑单958生物学特性和产量的剂量效应  

The Influence of Recommended Dose and Double Dose of Three Herbicides on the Growth of Zhengdan 958

作　　者：侯文邦[1] 周璐[1] 

机构地区：[1]河南科技大学农学院,河南洛阳471003

出　　处：《西南大学学报（自然科学版）》2017年第1期25-29,共5页Journal of Southwest University(Natural Science Edition)

基　　金：农业部公益性行业(农业)科研专项经费项目(10037157)

摘　　要：选取生产上常用的4%烟嘧磺隆悬浮剂、38%莠去津悬浮剂和24%烟·莠可分散油悬浮剂,分别以推荐剂量和倍量于玉米郑单958品种五叶期喷施,以人工除草为对照.通过测定玉米的SPAD值、株高、叶面积和产量来评价其对玉米生物学特性的影响.结果表明:与对照相比,烟嘧磺隆、莠去津、烟·莠的推荐剂量和烟嘧磺隆、烟·莠的倍量对玉米郑单958的前期生长均有一定的抑制作用,莠去津的倍量对玉米郑单958的前期生长有一定的促进作用;烟嘧磺隆和烟·莠的推荐剂量使玉米增产,其余处理使玉米减产.研究结果对于玉米地安全使用除草剂具有重要的参考价值.Three herbicides,4% nicosulfuron suspending agent,38% atrazine suspending agent and 24% nicosulfuron·atrazine dispersed oil suspending agent,which were commonly used in the fields,were selected,and respectively spray at five-leaf stage of maize Zhengdan958 with the recommended dose and double dose,manual weeding as controls.By measuring SPAD value,plant height,leaf area and yield of the different treatments evaluated its influence on corn.The results show that：Compared with the control,both the recommended dose of nicosulfuron,atrazine,nicosulfuron · atrazine and the recommended double dose of nicosulfuron,nicosulfuron · atrazine had a certain inhibition to the early growth stage of maize Zhengdan958,the recommended double dose of atrazine had a certain promotion to the early growth stage of maize Zhengdan958,the recommended dose of nicosulfuron,nicosulfuron·atrazine increased the yield of corn,other treatments induced the yield of corn.

关 键 词：除草剂 剂量效应 玉米郑单958 五叶期 

分 类 号：S482.4[农业科学—农药学]