Soil disinfection machine - ozone micro nano bubble disinfection device
ZJC-NM ozone micro/nano bubble disinfection device. With its unique characteristics, ozone micro/nano bubbles are widely used in fields such as soil disinfection, nutrient solution oxygenation disinfection, irrigation water sources, groundwater water and soil environment remediation, etc. Zhongjing soil disinfection machine has the characteristics of high efficiency, integration, and complete control functions, which can disinfect and irrigate plant soil, nutrient solution, and other fields.
The properties of the nano ozone bubbles produced by the ozone micro/nano soil disinfection device and their efficacy in killing Fusarium oxysporum can be used to mix the Fusarium oxysporum f. sp.lycopersiciwithasporeconcentrationof2.4×After104·mL~(- 1) of bacterial liquid, ozone micro nano bubble water was introduced to conduct sterilization tests on pathogenic bacteria, and the sterilization effect and regularity were studied. On this basis, the cultivated Fusarium oxysporum was evenly sprayed on the nutrient soil, and micro/nano bubble ozone water was irrigated once every 7 days for sterilization. The water was continuously irrigated for 3 times, using tap water as a control. The experimental results show that when the ozone concentrationinwateris7.3mg·L-1 and the contact time is 2 min, the spore concentration is 2.4 × The killing rate of 104 · mL1 fusarium oxysporum tomato specific pathogens was close to 100%; After using micro/nano bubble ozonewaterwithconcentrationsof1.2~1.7mg·L-and7.8~8.mg·L-1 to sterilize the nutrient soil for three consecutive times, the final killing rates of Fusarium oxysporum were 76.83% and 88.76%, respectively. Using micro and nano bubble ozone water has certain efficacy in killing Fusarium oxysporum, a typical pathogen of soil borne diseases, and can be used as a new method for soil disinfection.
The dissolution and attenuation characteristics of ozone micro/nano bubble water, its killing effect on pathogens of tomato leaf mold and early blight, and the effect of spraying different concentrations of ozone micro/nano water (0.6,1.2,1.8 mg/L) on tomato growth. Research shows that using an ozone micro/nano bubble disinfection machine can increase the solubility of ozone in water and increase the concentration of ozone water; Micro-nanometer ozone immersion water has a good killing effect on the pathogens of leaf mold and early blight: when the concentration of ozone nanowater reaches 1.86 mg/L and 2.21 mg/L, and the contact time is 5 minutes, the killing rate of spore suspension with 107 order of magnitude concentration can reach 94.07% and 99.08%; Spraying ozone micro/nano bubble water with a certain concentration range (0.6~1.8 mg/L) has no significant negative effect on tomato growth. Therefore, ozone micro/nano bubble water has a good killing effect on two airborne pathogens of tomato, and is safe for tomato plant growth. It can be used for the prevention and control of tomato airborne diseases in greenhouse.
