摘要
在采用不同热解温度制备生物炭的基础上,筛选出与Bt相容性好的生物炭和颗粒剂助剂,并运用正交试验优化制剂配方和制备工艺。结果表明,热解温度500℃制备的花生壳生物炭(HS-5)与Bt相容性好。优化后的颗粒剂配方(质量分数)为:Bt菌粉22%、生物炭(HS-5)0.5%、润湿剂拉开粉2%、黏结剂硅酸镁铝2%、崩解剂氯化钠2%。最优制粒工艺条件为:筛孔粒径1.0 mm,40℃条件下烘干40 min。所得颗粒剂各项指标符合国家标准。该研究为生物炭与Bt联合应用提供了参考。
Based on the preparation of biochar at different pyrolysis temperatures,the biochar and additives were screened by biocompatibility experiments,and the formulation and process of GR were optimized by orthogonal experiments.The results showed that the peanut shell biochar(HS-5)prepared at the temperature of 500℃ had good compatibility with Bt.The optimized formula(mass fraction)were Bt powder 22%,carrier(HS-5)0.5%,wetting agent(nekal)2%,binder(magnesium aluminum silicate)2%,disintegrant(sodium chloride)2%.The optimum granulation technology were as follows:the diameter of the sieve pore was 1.0 mm,the drying time was 40 min at the temperature of 40℃.The indexes of the obtained GR met the national standards.The study provided a reference for the combined application of biochar and Bt.
作者
朱海云
朱美琦
高明惠
王静
徐晓庆
张保华
ZHU Haiyun;ZHU Meiqi;GAO Minghui;WANG Jing;XU Xiaoqing;ZHANG Baohua(College of Energy and Chemical Engineering,Ningxia Vocational Technical College of Industry and Commerce,Yinchuan 750021,China;College of Chemistry and Pharmacy,Qingdao Agricultural University,Shandong Qingdao 266109,China;Rushan Hanwei Biotechnology Co.,Ltd.,Shandong Weihai 264500,China)
出处
《现代农药》
CAS
2024年第3期51-56,共6页
MODERN AGROCHEMICALS
基金
宁夏自治区自然科学基金项目(2022AAC03638、2019BEB04042)
山东省科技型中小企业创新能力提升工程项目(2022TSGC1311)。
关键词
生物炭
苏云金杆菌
颗粒剂
正交试验
制备工艺
biochar
Bacillus thuringiensis
GR
orthogonal experiment
preparation technology
