Study on the effect of phosphine fumigation of quasi-cold storage rice coated with film
Phosphine as a commonly used grain storage fumigant,possesses significant insecticidal effects.In this study,the stored rice in Shenzhen area was selected as the experimental material,and the effect of quasi low-tempera-ture laminated phosphine fumigation grain storage technology on rice was studied in depth.The results showed that the trend of grain temperature decline was basically the same regardless of whether the laminated rice heap was fumi-gated or not.The moisture and tasting score values were basically unchanged with the quasi low-temperature overlay fumigation method.The temperature of the rice pile was maintained at about 19℃,the fumigated pile could maintain a high concentration for a long time,and there were no live insects in the rice pile,so the film fumigation could effec-tively control grain pests.The rice was tested for residues after fumigation and the results were not detected.
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