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| Effect of carbon dioxide air conditioning technology on soybean storage in squat silo |
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| KeyWord:squat silo carbon dioxide air conditioning insecticidal effect storage quality soybean |
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| Abstract: |
| In order to further promote the development of green protection technology against pest and promote the high-quality development of warehousing, the carbon dioxide air conditioning process of filling low and discharging up was adopted for squat silo,and the impact of carbon dioxide air conditioning technology on the effect of the storage of soybean in squat silo by investigating the carbon dioxide concentration changes of the experimental silo in different locations, changes in soybean quality indexes and the effect of pest control in grain storage. In addition, the carbon dioxide air conditioning technology was compared with the nitrogen gas conditioning technology. The results showed that the concentration of carbon dioxide kept above 35% for more than 15 d at each detection point, and the control effect on pests such as Cryptolestes ferrugineus, Tribolium castaneum Herbst, and Sitophilus zeamais motschulsky was significant, and the killing rate reached 100%. The indexes of soybean fatty acid value, protein solubility ratio and water content changed little. The loss rate of carbon dioxide was faster than that of nitrogen, so carbon dioxide air conditioning had higher requirements for the air-tightness of warehouses, and its cost was also higher. However, carbon dioxide air conditioning technology required a shorter sealing period and a lower initial one-time investment. To sum up, under the condition that the warehouse has good air-tightness, the insecticidal effect of carbon dioxide air conditioning technology is remarkable. |
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