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Research Background
By detecting the dynamic surface tension of the medicinal liquid of different formulations, the medicinal liquid can effectively and quickly attach and wet the leaves, so as to improve the medicinal effect
experimental method
Determination principle and method: The size of dynamic surface tension is determined by the rate of migration and diffusion of surfactant molecules to the new surface and the amount of surface adsorption
Table 1 DST change values of different dilution ratios
Figure 1.
Figure 2.
Figure 3.
RESULTS AND DISCUSSION
Table 2 Bioactivity test results of 40% mesotrione SC
Figure 4 The relationship between DST (1000 ms) and ED90 diluted 600 times
Figure 5 The relationship between DST (1000 ms) and ED90 diluted 1200 times
Figure 6 The relationship between DST (1000ms) and ED90 diluted 4800 times
Through the study of 480 g/L mesotrione suspension system formulation, the dynamic surface tension of 3 dilution concentrations of 5 different formulations was measured, and the relationship between control effect and dynamic surface tension was studied
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Yu Lu, Chou Jingyu.
