Alaska Dried Fish,Dry Fish,Alaska Dry Fish Yanji Yongzhen Food Co., Ltd , https://www.yanjiyongzhenfood.com
Jujube trees have a long flowering period, which requires a significant amount of nutrients. If not properly managed, excessive flowering can lead to flower and fruit drop, ultimately reducing yield. To improve production during the flowering and fruit-setting stage, several effective management practices should be implemented.
First, applying foliar fertilizer during the early flowering stage with a 0.3% to 0.5% urea solution can enhance bud differentiation. During the flowering and young fruit stages, spraying a mixture of 0.3% urea and 0.4% potassium dihydrogen phosphate helps reduce fruit drop, increase fruit set, and improve fruit size and quality.
Second, using growth regulators and micronutrients during the flowering period can significantly boost fruit setting. A solution of 10â»â´ gibberellic acid or 2% chlormequat chloride mixed with 0.2% zinc sulfate can effectively enhance fruit retention in jujube trees.
Third, girdling is an effective technique for mature jujube trees (12–15 years old) during the flowering season. The method involves making two circular cuts about 15 cm from the ground on the trunk, with a width of 4–6 mm, reaching the xylem. This practice should be done once a year, starting from the base and moving upward every 3–5 cm. Girdling should not be performed on small or weak trees, and it must be avoided during sensitive periods.
Fourth, watering during the flowering period is essential, especially in hot and dry conditions. Spraying water on the tree canopy increases humidity, promotes pollen germination, and prevents blossom wilting. It is recommended to spray 3–4 liters per tree every 2–3 days, for a total of 3–4 times.
Fifth, topping the jujube head during the flowering period helps control excessive growth. When new branches reach 30 cm in length, cutting back part of the tip and leaving 3–4 secondary branches can prevent overgrowth and reduce nutrient consumption.
Lastly, applying boron during the flowering stage supports pollen development by enhancing sugar absorption and metabolic activity. A 0.2% to 0.3% borax solution or 0.1% to 0.2% boric acid solution should be sprayed evenly on the foliage to ensure optimal pollination and fruit set.
By implementing these techniques, growers can significantly improve the productivity and quality of their jujube crops.