摘要
[目的]明确苗后茎叶处理除草剂对糜子的安全性及对杂草的防除效果。[方法]糜子苗后4~5叶期采用茎叶施药进行田间药效试验。[结果]50%二氯喹啉酸WP、200 g/L氯氟吡氧乙酸EC、56%2甲4氯钠SP对糜子药害严重。900 g/L 2,4-滴异辛酯EC、38%莠去津SC、48%灭草松AS对糜子相对安全,施药后30 d,对一年生禾本科和阔叶杂草的总株防效为59.5%~91.1%,总鲜质量防效为60.2%~93.8%。[结论]糜子田苗后防除一年生阔叶杂草可选用900 g/L 2,4-滴异辛酯EC 600~750 mL/hm^2、48%灭草松AS 2250~3000 mL/hm^2;防除一年生禾本科和阔叶杂草可选用38%莠去津SC 3000~3750 mL/hm^2。
[Aims] This study aims to confirm the security of herbicides on proso and the control effect on weeds. [Methods] The method ofstem and leaftreatment was carried out at proso seedings after 4-5 leafstage. [Results] Quinclorac 50% WP, fluroxypyr 200 g/L EC, MCPA-sodium 56% SP caused serious injury to proso. 2,4-D ethylhexyl 900 g/L EC, atrazine 38% SC and bentazone 48% AS were relatively safe to proso. On 30 d after spraying, the total strain control effects on annual grass and broadleaf weeds were 59.5-85.1%, the total fresh weight control effect was 60.2-93.8%. [Conclusions] 2,4-D ethylhexyl 900 g/L EC 600-750 mL/ha and bentazone 48% AS 2250-3000 mL/ha were recommended to be used to proso seedings for controlling annual broadleafweeds. Atrazine 38% SC 3000-3750 mL/ha was recommended to be used for control of annual gramineae and broadleafweeds.
作者
赵秀梅
左豫虎
罗宝君
王连霞
郑旭
刘洋
王立达
武琳琳
ZHAO Xiu-mei ZUO Yu-hu LUO Bao-jun WANG Lian-xia ZHENG Xu LIU Yang WANG Li-da WU Lin-lin(NationalCoarseCereals EngineeringResearchCenter, HeilongjiangBayiAgricultural University, Daqing 163319, Heilongjiang, China Qiqihar Sub-academy of Heilongjiang Academy of Agricultural Sciences, Qiqihar 161006, Heilongjiang, China)
出处
《农药》
CAS
CSCD
北大核心
2017年第4期303-306,共4页
Agrochemicals
基金
国家杂粮工程技术研究中心组建项目(2011FU125X07)
关键词
糜子
化学除草
安全性
防效
proso
chemical weeding
safety
efficacy
