Quick-freezing method of peach
Fruit selection: peach fruit for quick-frozen processing requires meticulous meat, less crude fiber, good flavor, uniform size, neat fruit shape, no diseases and insect pests, no mechanical injury, easy to enucleate (preferably a seedless variety), and not easy to brown. The harvest maturity is slightly lower, and the processing capacity of 4 to 8 days can be stored in the factory. If stored in cold storage, the processing period can be longer, but the chilling injury of peaches should be prevented.
General white peach to Okubo, yellow peach to Alba is better.
Cut half and enucleate: cut in half along the suture and peach out the core, and the fruit bowl is preserved in clean water.
Peeling: heat it to about 95 ℃ with 3% n310h solution, soak it in a fruit bowl for 45 seconds, rub the skin in cold water, put in 2% citric acid solution, neutralize the residual alkalinity, and then rinse with clean water.
Pickling: soak the cleaned peach slices in 1% ascorbic acid solution and soak 15~30min in order to increase the content of vc in peach slices and protect color.
Packaging: put the peach slices into a carton and pour into the sugar water with a concentration of 40%. The ratio of peach slices to sugar water is 6:5.
Quick freezing: the packed peach slices were sent to the freezer, frozen at about-25 ℃, and stored in-18 ℃ freezer.
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Specific techniques for flower and fruit thinning of pears
1. Most of the cells of flowering, fruit setting and young fruit during sulfur blossom and fruit thinning period are mainly determined by storage nutrition, sparse the excess flowers and fruits as far as possible, reduce the consumption of large stomach, and concentrate all the nutrients on the flowers and fruits that should be left in order to grow into big fruit. Therefore, from this point of view, early vulcanization boat thinning is better, bud thinning is better than flower thinning, flower thinning is better than fruit thinning. However, it depends on the number of flowers, flowering weather, tree strength, fruit setting, and so on, before deciding whether to thinning buds, flowers, fruit, or a combination of the three. Pear orchards with large amount of flowers (big year), good weather and heavy workload can
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Planting jujube without organic fertilizer suffered losses.
This year, the price of jujube varies greatly. The main reason for the price difference is the difference between sweetness and brittleness, and the difference between sweetness and brittleness is mainly due to the different kinds of fertilization besides the characteristics of varieties. At present, it is the second root development period of jujube, the first peak period is from late May to early June after the new shoot stops growing, and the second peak period is from fruit picking to early November. From the survey of jujube farmers, many farmers are only used to fertilizing fruit trees in spring.
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