Beware of jujube fruit drop in summer
Adjust the distribution of nutrients to make nutrients flow more centrally to jujube fruit.
Measures:
First, pull the branch to open the 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 nutrients accumulate on jujube hanging and jujube fruit, thus speeding up the growth of young fruit and avoiding fruit drop caused by lack of nutrients.
What needs to be pointed out here is that all adult jujube trees, for the sprouting jujube head, all use the technique of extremely heavy heart-picking, leaving no jujube head branch or secondary branch. This is the key to the high yield of jujube trees. Any form of jujube head branch is a kind of vegetative growth, which will consume a lot of tree nutrients and make other jujube fruits drop a lot due to lack of nutrients.
Third, replenish fat and water in time. After flowering, three-yuan compound fertilizer should be applied once, nitrogen fertilizer should be gradually reduced, and the amount of phosphorus and potassium fertilizer should be increased. Combined with fertilization and watering once, it can obviously improve the quality of leaves, enhance the tree potential and promote the expansion of fruit.
Fourth, spray foliar fertilizer to prevent fruit drop and fruit drop caused by high temperature in summer.
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Taohui rain dew
In 1981, the Institute of Horticulture of Jiangsu Academy of Agricultural Sciences was selected by crossing Zhaohui × Yuhualu. The original code is 81Mui 8Mui 83, which was named in 1994. The fruit is round; the average weight of a single fruit is 110 grams, and the maximum fruit weight is 174 grams; the pericarp is milky yellow, with rose halo on the face; the pulp is milky white, soft and juicy, with sweet flavor and aroma; and the soluble solids are 11.1%. Sticky core. The fruit matured about June 10 in Nanjing area, and the fruit development period was 70 days. This variety has early fruit, high yield and wide adaptability.
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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, barren-resistant, neutral soil and saline-alkali soil and neutral soil.
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