Du pear
Du pear, also known as Tang pear, is a deciduous tree of Rosaceae pear, up to 12 meters high. The branchlets are spiny, the leaves are long-ovate, 5 to 9 cm long, the leaf margin is coarsely serrated, the flowers are milky white, the fruit is stone-colored, the particle size is about 2 cm, the florescence is from mid-late April to early May, and the ripening period is from mid-late August to mid-September. It is widely distributed in China, and it is cultivated in North China, Northwest China, the middle and lower reaches of the Yangtze River and the south of Northeast China.
Du pear is adaptable, light-loving, cold-resistant, drought-resistant, waterlogging-resistant and barren-tolerant, and can grow normally in neutral soil and saline-alkali soil. The soil salt content in the area where the author is located is 0.4%, and the pH value is 8.5. However, without soil improvement and guest soil and other technical measures, the planted du pear can grow vigorously.
The reproduction of du pear is mainly sowing, and it can also be pressed, which can be stacked indoors after seed collection in autumn, so that the pulp will soften naturally, and it should be stirred frequently during the period to prevent it from rotting. After the pulp becomes soft, it is scrubbed in water, the seeds are fished out, and put in the indoor shade to dry. In November, the soil is mixed with sand before freezing, and the ratio of wet sand to seeds is 31. After mixing well, put in the outdoor shady storage pool, in order to prevent dehydrated seeds. Can cover about 10 cm of wet sand, after thawing in spring next year, it should be stirred in time to prevent mildew and deterioration, the time is once a day, after planting buds, sowing in time, about 20 days can be germinated, about 5 years can blossom.
Du pear is not only strong in nature, but also lax in water and fertilizer requirements, coupled with its beautiful tree shape and white color, it is widely used in saline-alkali areas in the north. It can be used not only as shelterbelt, soil and water conservation forest, but also for the greening of street courtyards and parks. It is a good tree species worth popularizing.
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Beware of jujube fruit drop in summer
Adjust the distribution of nutrients to make nutrients flow more centrally to jujube fruits. Measures: first, pull branches to open angle. For the more upright branches, the direction can be changed and the polarity can be dispersed by means of brace and pull, which can enhance the ventilation and light transmission of the tree and make the summer cloth of the branches sit well. Second, get rid of cuteness and pick the heart. For the budding jujube head, it can be removed from the base or cut from the rosette when there is no room for development, leaving only 3 jujube hangers at the base of 2mi. This can effectively reduce the consumption of nutrients and make the accumulation of nutrients.
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Processing method of preserved apricot fruit
(l) main raw materials (100 jin of finished products) 350-360 jin of apricot and 60-65 jin of sugar. (2) for material selection and pre-processing, the fruit used in the production of preserved apricot should be golden in color, easy to leave kernel, delicate meat, full of toughness, storability, soft after maturity, and intact without diseases and insect pests. Generally speaking, "Tiebada" and "Shanhuang apricot" are more ideal in production. After picking, the fruit is knocked open along the closing line, enucleated and washed. However, the green apricot producing green plum was soaked in 15% salt water for 3 days.
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