Storage technology of pear in ventilated storehouse
Ventilation storage is a simple method to store pears under relatively stable and low temperature conditions by making use of natural low temperature in winter and ventilation storage with large temperature difference between day and night and thermal insulation. The main techniques are as follows: after the pear fruit is harvested, the injury is selected by pre-storage, the basket is put into the warehouse, and the pile is ventilated. Open or close the window timely and flexibly according to the temperature difference inside and outside the library, adjust the temperature and humidity in the library, keep the temperature at-3 ℃ as far as possible, and the relative humidity between 85% and 93%. We should pay attention to anti-freezing in the cold season, especially the varieties which are sensitive to low temperature. The suitable storage temperature of crisp pear is 0-5 ℃.
Before the pear fruit enters the warehouse, the ventilation storehouse must be cleaned and sterilized, and the temperature and hygrometer should be set up and placed in a representative position in order to correctly understand and grasp the changes of temperature and humidity in the storehouse.
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Jin jujube (hanging jujube)
Jin jujube (hanging jujube). The main producing area is on both sides of the Weibei Jinghe River in Shaanxi Province. Fruit cylindrical or long ovoid. The single fruit weighs 34 grams, the pulp is crisp, the juice is much, and it is very sweet. The sugar content of fresh jujube is 28%, and that of dried jujube is 82.4%. The nucleus is small and slender. Dry mainly. A traditional famous product with strong adaptability. The mature period is in late September. The area suitable for planting is wide. Main planting in Weibei Arid Plateau of Shaanxi Province.
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Peach gum disease and its control
1. Distribution: peach gum disease, also known as resin disease, is common in all peach areas in China, especially in the south. The etiology is complicated and it is not easy to prevent and cure it thoroughly. Gum flow causes tree weakness, affecting fruit quality, and even dead branches and dead trees. two。 Symptoms: the disease mostly occurs in the branches of peach trees, especially in the trunk and main branches. At the initial stage, the disease expanded slightly, gradually spilled the translucent colloid, and aggravated after the rain. After that, the colloid gradually becomes jelly-like, yellowish brown after dehydration and dark brown when dry. Bark cracking in severe cases
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