Citrus Fruit Storage Disease Prevention Technology
There are more than 20 kinds of diseases that can occur in the storage process of oranges after harvesting. According to the main diseases and the regularity of occurrence during the storage period of oranges, the comprehensive prevention and treatment technologies for diseases during the storage period of citrus are proposed.
Pre-harvest sprayed fruit is sprayed with bactericide 1~2 times before harvesting to reduce the pathogenicity base. Generally can spray 70% thiophanate-methyl wettable powder 1200 ~ 1500 times or 50% carbendazim wettable powder 1000 times.
Reasonably picking cream, dew, and rainwater are not harvested; Huang Liuqing is selected and harvested in batches; when picking fruit, nails or gloves must be cut in order to prevent injury, and the fruit basket must be put in soft objects and gently handled. The wounded fruit, the floor fruit, the slime fruit and the pest fruit must be stacked separately.
The drug treatment shall be treated with fruit soaking in time after harvesting, and it is best to be treated with dipping and picking, and no more than 24 hours at the latest.
Ventilation pre-storage citrus fruit preserved by preservative should be placed in ventilated warehouse pre-storage, generally pre-store 5 to 7 days, in case of rain, it can be extended to 10 to 12 days, usually dried peel, fruit weight loss 3% to 5% For degree.
Before storing the decontaminated fruits in the warehouse, the warehouse must be fumigated. Each cubic meter is ignited with sulfur powder 5~10g for 1~2 days or formalin 40 times, 30~50ml/m3, closed fumigation for 3~4 days, and can be stored before the drug gas dispersion. Storage.
The commonly used antiseptics for preservation and preservation are carbendazim (10%, 25%, 50% for three dosage forms), thiophanates (25%, 50%, 70% for three dosage forms); the preservative is 2,4-D (for artificial Synthetic plant growth regulators, the original powder is white, there are 2,4-D butyl ester, sodium salt and ammonium salt in the process formulation; antisepsis and Preservatives have the effect of preservation and preservation, but they can only be stored in short term (after the Spring Festival For sale or consumption, the effect is good or homemade carbendazim (or thiophanate) + 2,4-D butyl ester (or powder). Http://
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