| 陈科昭,关正军.磁化对农药理化特性及对柑橘定植苗农药沉积率的影响研究[J].中国南方果树,2023,52(2): |
| 磁化对农药理化特性及对柑橘定植苗农药沉积率的影响研究 |
| Effects of magnetization on physicochemical properties of pesticides and pesticide deposition rate of citrus seedlings |
| 投稿时间：2022-10-13 修订日期：2022-11-18 |
| DOI： |
| 中文关键词: 农药 磁化 理化特性 喷雾粒径 柑橘定植苗 沉积率 |
| 英文关键词:Pesticide Magnetization Physical and chemical properties Spray size Citrus planting seedlings Deposition rate |
| 基金项目:重庆市自然科学基金 |
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| 摘要点击次数: 1808 |
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| 中文摘要: |
| 摘要：提升农药的沉积率，减少环境污染意义重大。为探究安全、有效的提升农药沉积率的新途径，文章采用磁化方法对农药进行处理，探究磁场强度、温度、循环次数对农药的表面张力、电导率、pH值的理化特性影响，并在温室大棚无风环境条件下，使用玻璃纸对农药进行收集，对柑橘定植苗农药的沉积率进行测定。结果表明：磁场强度和循环次数对表面张力影响显著，温度不显著，表面张力随磁场强度和循环次数的增加不断减小，减小至54mN/m后趋于平缓；磁场强度、循环次数对电导率影响显著，温度不显著，电导率出现极小值；磁场强度、温度、循环次数对pH值的影响均不显著；经过3900Gs、20次循环磁处理后，喷雾颗粒粒径减小，柑橘定植苗农药沉积率提高了2.6%~6.0%左右。 |
| 英文摘要: |
| Abstract: Improving the pesticide deposition rate is of great significance for reducing the environmental pollution. To explore a safe and effective way for improving the rate of pesticide deposition, this paper selected the magnetization method to harness the pesticides. The effects of magnetic field intensity, temperature, and cycle index on the physicochemical properties of the pesticide, including surface tension, electrical conductivity, and pH value, were discussed. Under the greenhouses without wind conditions, the pesticides were collected by cellophane, and the deposition rates of citrus transplanting stock pesticides were determined. Results indicated that the surface tension was significantly affected by the magnetic field intensity and the number of cycles while Increase in magnetic field strength and number of cycles，the surface tension gradually decreased to 54mN/m. However, the influence of temperature was not obvious. The value of conductivity was greatly influenced by the magnetic field intensity and the number of cycles leading to a minimum value while the influence of temperature was not obvious. The effects of magnetic field intensity, temperature, and cycle index had no significant effects on the pH value. After 3900Gs and 20 cycles of magnetic treatment, the spray particle size decreased, and the pesticide deposition rate of citrus seedlings increased by 2.6%-6.0%. |
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