4种除草剂对甘蔗新品种产量及构成因素的影响  

Effects of Four Kinds of Herbicides on Yield and Yield Components of New Sugarcane Varieties

作　　者：段维兴[1] 刘许辉[2] 杨海霞[2] 王泽平[1] 高轶静[1] 张荣华[1] 罗霆[1] 宋焕忠[1] 张革民[1] 

机构地区：[1]广西农业科学院甘蔗研究所,南宁530007 [2]广西大学农学院,南宁530005

出　　处：《作物研究》2012年第5期504-507,共4页Crop Research

基　　金：国家农业科技成果转化基金(2011GB2E100014);广西农业科技成果转化基金(SQ2011ECE100043);广西自然科学基金(2011GXNSFF018002;2010GXNSFD013034;2012GXNSFBA053036);现代农业产业技术体系(CARS-20-1-3);广西农科院基本科研业务专项(桂农科2011YT01;2011YT04;2012YM14);广西农业科学院科技发展基金(2011JM06)

摘　　要：以桂糖29号、桂糖02-1156、桂糖05-3084、新台糖22号4个甘蔗品种为材料,用56%二甲四氯钠盐、48%蔗草灭、38%莠去津、99.9%乙草胺4种除草剂做防除杂草的田间试验。结果表明:甘蔗产量最高的为38%莠去津胶悬剂处理,但各处理间差异不显著;产量构成因素中,茎径差异显著,株高、有效茎数、分蘖率差异不显著。这4种除草剂对甘蔗安全性好,可做土壤封闭和芽后(3～5叶)处理。其中56%二甲四氯钠粉剂对单子叶杂草防效差,99.9%乙草胺乳油对3叶以上的杂草防效差,38%莠去津胶悬剂防效最佳,田间剂量以3 748 g/hm2为宜。Field experiment on effect of four kinds of herbicides, 56% MCPA sodium, 48% Zhecaomie, 38% atrazine and 99. 9% acetochlor on weed control was carried out with 4 sugarcane varieties, Guitang No. 29, Guitang 02 - 1156, Guitang 05 - 3084 and ROC22, as materials, and the results showed that yield of treatment of suspension concentrate of 38% atrazine was highest while there was no obvious difference among different treatments. Stalk diameter had significant difference while plant height, millable stalks or tillering rate had not. The four kinds of herbicides were safe to sugarcane, which could be used for soil sprayed and post - emergence （3 - 5 leaves）. Control effect of powder concentrate of 56% MCPA sodium on monocotyledon weeds and that of emulsifiable concentrate of 99. 9% acetochlor on weeds with more than 3 leaves was bad. Control effect of suspension concentrate of 38% atrazine was best and the optimal dose was 3 748 g/hm2.

关 键 词：甘蔗 除草剂 产量 

分 类 号：S566.1[农业科学—作物学]