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24%丙硫 • 戊唑醇悬浮剂的研制及其对稻麦纹枯病的防治效果

陈宸 张坤 丁涛 冯建国 杨进 贺振 陈夕军

陈宸, 张坤, 丁涛, 冯建国, 杨进, 贺振, 陈夕军. 24%丙硫 • 戊唑醇悬浮剂的研制及其对稻麦纹枯病的防治效果[J]. 农药学学报. doi: 10.16801/j.issn.1008-7303.2021.0050
引用本文: 陈宸, 张坤, 丁涛, 冯建国, 杨进, 贺振, 陈夕军. 24%丙硫 • 戊唑醇悬浮剂的研制及其对稻麦纹枯病的防治效果[J]. 农药学学报. doi: 10.16801/j.issn.1008-7303.2021.0050
Chen CHEN, Kun ZHANG, Tao DING, Jianguo FENG, Jin YANG, Zhen HE, Xijun CHEN. Development of prothioconazole + tebuconazole 240 g/kg SC and its control on rice sheath blight and wheat sharp eyespot in the field[J]. Chinese Journal of Pesticide Science. doi: 10.16801/j.issn.1008-7303.2021.0050
Citation: Chen CHEN, Kun ZHANG, Tao DING, Jianguo FENG, Jin YANG, Zhen HE, Xijun CHEN. Development of prothioconazole + tebuconazole 240 g/kg SC and its control on rice sheath blight and wheat sharp eyespot in the field[J]. Chinese Journal of Pesticide Science. doi: 10.16801/j.issn.1008-7303.2021.0050

24%丙硫 • 戊唑醇悬浮剂的研制及其对稻麦纹枯病的防治效果

doi: 10.16801/j.issn.1008-7303.2021.0050
基金项目: 国家重点研发计划项目 (2018YFD0300800);江苏省重点研发项目 (BE2020319,BE2018355);江苏省现代农业产业发展项目 (2020-SJ-003-YD07) 资助
详细信息
    作者简介:

    陈宸,男,博士,主要从事农作物病害综合防控研究,Email:chenc@yzu.edu.cn

    通讯作者:

    陈夕军,通讯作者 (Author of correspondence),男,副教授,主要从事农作物病害综合防控研究,E-mail:xjchen@yzu.edu.cn

  • 中图分类号: TQ450.6;S435.11;S482.2

Development of prothioconazole + tebuconazole 240 g/kg SC and its control on rice sheath blight and wheat sharp eyespot in the field

  • 摘要: 丙硫菌唑是一种新型广谱三唑硫酮类杀菌剂。通过联合效力 (联合毒力) 测定、配方助剂筛选和悬浮剂理化性能指标检测,研制了丙硫菌唑与戊唑醇复配的悬浮剂,并测定了其对水稻、小麦纹枯病的防治效果。结果表明:丙硫菌唑与戊唑醇质量比为2: 1时对稻麦纹枯病菌具有增效作用,联合效力系数 (共毒系数) 分别为1.91和1.92;24%丙硫 • 戊唑醇悬浮剂最佳配方 (质量分数) 为:16.0%丙硫菌唑、8.0%戊唑醇、4.0% 分散剂Featdis SCP、3.0% 润湿剂EFW、0.2%黄原胶、1.0%硅酸镁铝和4%乙二醇,水补足至100%。产品经过(54 ± 2) ℃热贮14 d后,悬浮率95.2%,pH值6.9,平均粒径0.71 μm,析水率2.3%,持久起泡性小于25 mL;(0 ± 2) ℃冷贮7 d后,悬浮率94.8%,pH值7.1,平均粒径0.87 μm,持久起泡性小于25 mL,黏度在200~600 mPa·s之间。田间防效测定结果表明,24%丙硫 • 戊唑醇悬浮剂对水稻、小麦纹枯病均有较好防效,田间施用量 (有效成分) 210 g/hm2和150 g/hm2时,防效分别达89.01%和86.26%。
  • 1  丙硫菌唑和戊唑醇化学结构式

    图  1  不同稀释倍数下24%丙硫菌唑 • 戊唑醇悬浮剂的接触角

    A. 清水对照;B. 600倍稀释液;C. 800倍稀释液;D. 1000倍稀释液;E. 1200倍稀释液。

    Figure  1.  Contact angles of prothioconazole + tebuconazole 240 g/kg SC with different dilution folds

    A. Water (control); B. Dilution 600 folds; C. Dilution 800 folds; D. Dilution 1000 folds; E. Dilution 1200 folds.

    表  1  不同年份各处理药剂量 (有效成分g/hm2)

    Table  1.   Dosages of each pesticide used in different years (a.i, g/hm2)

    处理
    Treatment
    201820192020
    小麦
    Wheat
    水稻
    Rice
    小麦
    Wheat
    水稻
    Rice
    24%丙硫菌唑 • 戊唑醇悬浮剂
    prothioconazole + tebuconazole 240 g/kg SC
    90 150 90 150
    120 180 120 180
    150 210 150 210
    20%丙硫菌唑悬浮剂
    prothioconazole 200 g/L SC
    120 180 120 180
    430 g/L戊唑醇悬浮剂
    tebuconazole 430 g/L SC
    120 180 120 180
    40%丙硫菌唑 • 戊唑醇悬浮剂
    prothioconazole + tebuconazole 400 g/kg SC
    120 180
    清水对照 Water (control)
    下载: 导出CSV

    表  2  丙硫菌唑与戊唑醇不同配比对水稻纹枯病菌的联合效力

    Table  2.   Combined toxicity of prothioconazole and tebuconazole at different ratios to R. solani

    杀菌剂
    Fungicides
    质量比
    Mass ratio
    毒力回归方程
    Toxicity regression equation
    相关系数
    r
    EC50(th)/
    (µg/mL)
    EC50(ob)/
    (µg/mL)
    增效系数
    SR
    丙硫菌唑 prothioconazole y = 0.3616x + 0.3760 0.9891 2.2025
    戊唑醇 tebuconazole y = 0.3449x + 0.4126 0.9866 1.7922
    丙硫菌唑 : 戊唑醇
    prothioconazole : tebuconazole
    3:1 y = 0.3896x + 0.3969 0.9874 2.0833 1.8392 1.13
    2:1 y = 0.5046x + 0.4844 0.9795 2.0463 1.0737 1.91
    1:1 y = 0.4291x + 0.4754 0.9850 1.9763 1.1411 1.73
    1:2 y = 0.3184x + 0.4137 0.9931 1.9108 1.8665 1.02
    1:3 y = 0.3265x + 0.3893 0.9991 1.8797 2.1829 0.86
    下载: 导出CSV

    表  3  丙硫菌唑与戊唑醇不同配比对小麦纹枯病菌的联合效力

    Table  3.   Combined toxicity of prothioconazole and tebuconazole at different ratios to R. cerealis

    杀菌剂
    Fungicides
    质量比
    Mass ratio
    毒力回归方程
    Toxicity regression equation
    相关系数
    r
    EC50(th)/
    (µg/mL)
    EC50(ob)/
    (µg/mL)
    增效系数
    SR
    丙硫菌唑 prothioconazole y = 0.1694x + 0.3276 0.9722 3.4162
    戊唑醇 tebuconazole y = 0.3255x + 0.5225 0.9843 0.8528
    丙硫菌唑 : 戊唑醇
    prothioconazole : tebuconazole
    3 : 1 y = 0.2126x + 0.4654 0.9909 2.7397 1.4546 1.88
    2 : 1 y = 0.3056 x + 0.4824 0.9825 2.1994 1.1418 1.92
    1 : 1 y = 0.2890 x + 0.4700 0.9808 1.5772 1.2700 1.24
    1:2 y = 0.3189 x + 0.4391 0.9700 0.8529 1.5522 0.55
    1:3 y = 0.3474 x + 0.4654 0.9640 0.7682 1.2652 0.61
    下载: 导出CSV

    表  4  润湿分散剂流点测试结果

    Table  4.   Test results of the flow point value of different wetting dispersants

    润湿分散剂种类
    Kinds of wetting
    dispersants
    流点值
    Flow point value/
    (mL/g)
    润湿分散剂
    种类
    Kinds of wetting
    dispersants
    流点值
    Flow point value/
    (mL/g)
    D425 0.62 D1003 0.99
    Disper984 0.58 Disper982 0.73
    Featdis SCP 0.55 DF1000 0.88
    D1001 0.98 ULTRASURF 2005 1.23
    EFW 0.71 ULTRASURF 3016 0.91
    木质素磺酸钠
    Sodium lignin sulfonate
    1.12 NNO 0.75
    下载: 导出CSV

    表  5  不同润湿分散剂组合制备的24%丙硫菌唑 • 戊唑醇悬浮剂的理化性质

    Table  5.   Physical and chemical properties of prothioconazole + tebuconazole 240 g/kg SC with different wetting dispersant combinations

    组合
    Groups
    D425984SCPEFWXG热贮前悬浮率
    Suspension rate before
    heat storage/%
    热贮后析水率
    Water separation rate
    after heat storage/%
    粒径
    Particle size/μm
    热贮前
    Before heat storage
    热贮后
    After heat storage
    1 3 0 0 2 0.1 86.3 15.6 1.0 1.2
    2 0 0 4 3 0.2 93.2 2.1 0.5 0.6
    3 0 3 0 3 0.2 89.3 7.8 1.1 1.3
    4 5 0 0 3 0.2 91.8 11.4 1.5 1.8
    5 0 4 0 3 0.2 90.6 8.9 0.8 0.9
    6 0 0 3 2 0.2 97.3 1.1 1.2 1.2
    7 0 5 0 5 0.2 91.1 7.2 0.8 0.9
    8 4 0 0 4 0.2 92.4 9.8 0.9 1.1
    下载: 导出CSV

    表  6  较优润湿分散剂组合制备的24%丙硫菌唑 • 戊唑醇悬浮剂的其他理化性质

    Table  6.   Other physical and chemical properties of prothioconazole + tebuconazole 240 g/kg SC with better wetting dispersant combinations

    组合
    Groups
    984/%SCP/%EFW/%黏度
    Viscosity/
    (mPa·s)
    入水分散性
    Dispersibility
    in water
    热贮前
    before heat
    storage
    热贮后
    after heat
    storage
    2043221226良 Good
    6032273284良 Good
    7505367390差 Poor
    下载: 导出CSV

    表  7  不同增稠剂及其组合制备的24%丙硫菌唑 • 戊唑醇悬浮剂的流动性、分散性与稳定性

    Table  7.   Fluidity, dispersity and stability of prothioconazole + tebuconazole 240 g/kg SC with different thickeners and their combinations

    增稠剂
    Thickeners
    用量
    Dosage/%
    流动性
    Fluidity
    分散性
    Dispersibility
    热贮后稳定性
    Stability after
    heat storage
    XG 0.3 差 Poor 差 Poor 无分层 No layering
    XG 0.2 良 Good 良 Good 稍有分层 Slight layering
    SM 1.0 良 Good 差 Poor 分层严重 Serious layering
    XG + SM 0.1 + 0.5 良 Good 良 Good 分层严重 Serious layering
    XG + SM 0.2 + 1.0 良 Good 良 Good 无分层 No layering
    下载: 导出CSV

    表  8  不同防冻剂制备的24%丙硫菌唑 • 戊唑醇悬浮剂的外观与粒径

    Table  8.   Appearance and particle sizes of prothioconazole + tebuconazole 240 g/kg SC with different antifreezes

    防冻剂
    Antifreeze
    外观
    Appearance
    粒径D50
    Particle size D50/μm
    研磨2 h
    Grinding for
    2 hours
    冷贮7 d
    Cool storage for
    7 days
    热贮14 d
    Heat storage for
    14 days
    乙二醇 Ethanediol 流动性好,少量泡沫 Good fluidity, a little foam 0.53 0.55 0.71
    丙三醇 Glycerol 流动性好,少量泡沫 Good fluidity, a little foam 0.59 0.63 1.22
    尿素 Urea 黏度大,少量泡沫 High viscosity, a little foam 0.62 0.65 2.56
    下载: 导出CSV

    表  9  不同研磨时间下24%丙硫菌唑 • 戊唑醇悬浮剂的粒径

    Table  9.   Particle sizes of prothioconazole + tebuconazole 240 g/kg SC after different grinding times

    研磨时间
    Grinding time/min
    粒径
    Particle size/μm
    D50D75D90
    302.3812.5814.816
    601.5972.1902.785
    900.8360.9412.388
    1200.6910.8021.899
    1500.6280.9231.241
    下载: 导出CSV

    表  10  (0 ± 2) ℃冷贮7 d后24%丙硫菌唑 • 戊唑醇悬浮剂的性能指标

    Table  10.   Performance index of prothioconazole + tebuconazole 240 g/kg SC after cold storage at (0 ± 2) ℃ for 7 days

    样品批次
    Sample batches
    悬浮率
    Suspension rate/%
    持久起泡性
    Lasting foamability/mL
    粒径 Particle size D50/μm倾倒性
    Pourability
    黏度
    Viscosity/(mPa·s)
    冷贮前
    Before cold storage
    冷贮后
    After cold storage
    193.711.30.560.62合格 Qulified209
    296.48.90.670.74合格 Qulified238
    395.27.30.570.76合格 Qulified194
    494.79.30.760.98合格 Qulified209
    597.56.60.600.67合格 Qulified206
    下载: 导出CSV

    表  11  (54 ± 2) ℃热贮14 d后24%丙硫菌唑 • 戊唑醇悬浮剂的性能指标

    Table  11.   Performance index of prothioconazole + tebuconazole 240 g/kg SC after heat storage at (54 ± 2) ℃ for 14 days

    样品批次
    Sample batches
    悬浮率
    Suspension rate/%
    持久起泡性
    Lasting foamability/mL
    粒径 Particle size D50/μm 倾倒性
    Pourability
    黏度
    Viscosity/(mPa·s)
    析水率
    Water separation rate/%
    热贮前
    Before heat storage
    热贮后
    After heat storage
    192.19.80.560.65合格2732.1
    293.88.30.670.73合格3111.8
    394.68.80.570.67合格2892.4
    495.210.50.760.88合格2792.2
    596.49.10.630.72合格3341.3
    下载: 导出CSV

    表  12  田间施用浓度下24%丙硫菌唑 • 戊唑醇悬浮剂的展布性能

    Table  12.   Distribution performance of prothioconazole + tebuconazole 240 g/kg SC at application concentration in the field

    处理
    Treatment
    稀释倍数
    Dilution folds
    表面张力
    Surface tension/(mN/m)
    接触角
    Contact angle/(°)
    24%丙硫菌唑·戊唑醇悬浮剂
    prothioconazole + tebuconazole 240 g/kg SC
    600 52.26 46.98
    800 60.31 60.54
    1000 62.77 62.19
    1200 63.84 68.30
    清水对照 Water (control) 71.80 77.60
    下载: 导出CSV

    表  13  24%丙硫菌唑 • 戊唑醇悬浮剂对小麦纹枯病的田间防效

    Table  13.   Control effect of prothioconazole + tebuconazole 240 g/kg SC on wheat sharp eyespot in the field

    药剂
    Fungicide
    施药剂量
    Dosage a.i/(g/hm2)
    20182019
    病情指数
    Disease index
    防效
    Control effect/%
    病情指数
    Disease index
    防效
    Control effect/%
    24%丙硫菌唑 • 戊唑醇悬浮剂
    prothioconazole + tebuconazole 240 g/kg SC
    90 0.47 64.71 d 5.08 74.17 b
    120 0.27 79.65 b 4.25 78.39 b
    150 0.13 90.32 a 2.70 86.26 a
    20%丙硫菌唑悬浮剂
    prothioconazole 20 g/kg SC
    120 0.33 75.19bc 7.08 63.99 c
    430g/L戊唑醇悬浮剂
    tebuconazole 430 g/L SC
    120 0.40 69.93 cd 5.19 73.63 b
    40%丙硫菌唑 • 戊唑醇悬浮剂
    prothioconazole + tebuconazole 400 g/kg SC
    120 6.61 66.38 c
    清水对照 Water (control) 0 1.33 19.67
    注:表中数字后不同小写字母表示在5%水平上差异显著。Note: Different lowercase letters after the number show significant statistical difference at 5 level.
    下载: 导出CSV

    表  14  24%丙硫菌唑 • 戊唑醇悬浮剂对水稻纹枯病的田间防效

    Table  14.   Control effect of prothioconazole + tebuconazole 240 g/kg SC on rice sheath blight in the field

    药剂
    Fungicides
    施药剂量
    Dosage a.i/(g/hm2)
    20182020
    病情指数
    Disease index
    防效
    Control effect/%
    病情指数
    Disease index
    防效
    Control effect/%
    24%丙硫菌唑 • 戊唑醇悬浮剂
    prothioconazole + tebuconazole 240 g/kg SC
    150 0.84 68.60 bc 6.06 77.24 d
    180 0.81 69.72 b 3.77 85.83 b
    210 0.56 79.12 a 2.93 89.01 a
    20%丙硫菌唑悬浮剂
    prothioconazole 200 g/kg SC
    180 1.01 62.33 c 7.99 69.99 e
    430 g/L戊唑醇悬浮剂
    tebuconazole 430 g/L SC
    180 1.20 55.20 d 4.73 82.23 c
    40%丙硫菌唑 • 戊唑醇悬浮剂
    prothioconazole + tebuconazole 400 g/kg SC
    180 4.67 82.46 c
    清水对照 Water (control) 0 2.68 26.63
    注:表中数字后不同小写字母表示在5%水平上差异显著。Note: Different lowercase letters after the number show significant statistical difference at 5 level.
    下载: 导出CSV
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  • 收稿日期:  2020-09-29
  • 录用日期:  2020-12-09
  • 网络出版日期:  2021-04-06

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