1, artificial harvesting method?
Manual picking requires fruit picking, fruit hooking, fruit shaking or combined with plastic pruning to cut off a branch with fruit. The efficiency of manual collection is low, and each person can only harvest 6~8 kilograms per day on average.
2. Mechanical recovery method?
Fruits are harvested by a suction device and a removing device. The former can improve the work efficiency 1.5~2 times than manual picking. Fruit loss is small, but energy consumption is high; The latter can also improve work efficiency, but it can only be used when the seabuckthorn fruit is just ripe and hard.
3. Chemical recovery method
40% ethephon with different concentrations was sprayed on seabuckthorn fruit from green to yellow to accelerate ripening and harvesting. The experimental results show that this method has low cost and high efficiency, and can significantly improve the integrity rate of fruits. The suitable concentration is 8000~ 10000 mg/kg.
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Suitable harvest of seabuckthorn fruit
1. According to Yang's research by Institute of Northwest Plateau Biology, China Academy of Sciences, the content of vitamin C is the highest in the mature period and near mature period. When overripe, the content of vitamin C decreased rapidly, with a difference of more than 2/5.
After overripe, it is in a relatively stable state. The same is true of carotenoid content, which is the highest in the early stage of fruit ripening and will decrease when it reaches over-ripening.
2. Seabuckthorn oil has the highest content within two weeks of fruit ripening. Therefore, judging from the changes of nutritional components of fruits, it is most appropriate to pick fruits before and after ripening. In addition, birds pecking seabuckthorn fruit is also very serious, so these factors should be considered when determining the harvest plan.
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