摘要
[目的]制备10%甲霜灵悬浮种衣剂(FSC),确定最优配方,用于大豆种子包衣防治大豆疫霉根腐病。[方法]通过湿法研磨的加工工艺对10%甲霜灵悬浮种衣剂配方中各个组分进行筛选和优化。通过室内生测和田间试验考察该产品的药效和安全性。[结果]较优配方为甲霜灵10.0%,乙二醇5.0%,有机膨润土1.0%,Span-80 2.0%,Tween-80 2.0%,NNO 4.0%,黄原胶0.3%,SYFMA001 8.0%,RED571 2.0%,苯甲酸钠0.5%,水补足至100.0%。[结论]该制剂各项指标符合悬浮种衣剂的相关标准。室内生测及田间试验结果表明,其对大豆疫霉根腐病具有良好的防效,对大豆种子安全,该产品具有良好的市场应用前景。
[Aims] The optimum formula ofmetalaxyl 10% flowable concentrates for seed coating (FSC) is obtained, which has excellent bioactivity on soybean phytophthora root rot. [Methods] Through wet milling process the components of metalaxyl 10% FSC were screened and optimized. The bioacitivity and safety of the metalaxyl 10% FSC were studied by greenhouse test and field trial. [Results] The optimum formula was as follows: metalaxyl 10.0%, ethylene glycol 5.0%, organobentonite 1.0%, Span-80 2.0%, Tween-80 2.0%, NNO 4.0%, xanthangum 0.3%, SYFMA001 8.0%, RED571 2.0%, sodium benzoate 0.5%, and distilled water up to 100%. [Conclusions] The results of the formulation physical-chemical properties tests show that all terms of metalaxyl 10% FSC met the standards of FSC. The new developed formulation has excellent bioactivity on soybean phytophthora root rot and is safety to soybean seed, which will have broad market prospects.
出处
《农药》
CAS
CSCD
北大核心
2014年第4期251-254,共4页
Agrochemicals
基金
国家重点基础研究计划(973计划)项目(2012CB724501)