What does the fruit set rate of citrus have to do with the leaves?

Yes, in order to improve the fruit setting rate of citrus, it can be sprayed before flowering, young fruit stage and fruit expansion stage to thicken the fruit pedicle and improve the nutrient delivery. Prevent falling flowers, falling fruits, cracked fruits, stiff fruits, and deformed fruits, so that the fruits are beautifully colored, beautiful in shape, and in good taste. At the same time, with the spraying of 800 times of the new high-lipid film, it can play the role of liquid film bagging, which will not affect fruit respiration, prevent fruit rust, prevent fruit cracking, improve the coloring and brightness of the fruit surface, reduce residual toxicity and improve quality.

Practice shows that if the overwintering old leaves fall off 20%-30%, the citrus yield will be reduced by 30% in the next year, and about 75% of the old leaves will only bloom without fruit set. Therefore, don't forget to protect the leaves after picking the citrus fruit. The five measures to protect winter leaves are:

1. Fertilize and protect leaves. Apply fruit picking fertilizer, winter fertilizer and pre-bud fertilizer to restore the tree in time, so that the leaves will not fall prematurely, and the life of the leaves will be extended as much as possible.

2. Irrigation and leaf protection. After fruit picking, the loss of water and nutrients in the tree body is large, and when there is less rain, the leaves will curl or even wilt and fall off. Therefore, in case of drought, it is necessary to irrigate in time, especially after fruit picking, if the soil is dry, combined with fertilization, it is necessary to irrigate once permeable, if there is a lot of rain after fruit picking, it should be ditched and drained.

3. Beauty and leaf preservation. The winter pruning beauty of citrus after harvest should be based on the "tree" conditions, and the tree should be pruned. Generally, the trees with more fruits and poor tree strength should be pruned lightly, and only dry and dead branches should be pruned; Conversely, heavier pruning can be done. Trim the mouth and apply a callus antiseptic film to promote wound healing.

Fourth, spray to protect leaves. Spider mites are the main pest that inflicts on citrus leaves after fruit picking and can do so until winter. 73% gram mite 2000-3000 times should be sprayed immediately, or Baumé's stone sulfur content + new high lipid film control;

5. Anti-freezing and leaf protection. 1.It is to cultivate the soil in time after picking the fruit to protect the roots; 2.It is to pay attention to the loose soil, and the whole garden is sprayed to protect the tree general disinfection and sterilization, which has obvious warming, heat preservation and anti-freezing effects.

The relationship between fruit set and leaves. Leaves are engaged in photosynthesis. Nutrient manufacturing.

A: No, it is impossible for citrus leaves to grow upwards. The citrus plant is a tropical fruit that is less sensitive to light and has no effect on whether the leaves are bent upwards or not.

At the same time, citrus calyx leaves also often have a similar light sensitivity, and there is almost no obvious photosynthesis in the seeds and fruits. Therefore, when planting citrus, it is impossible to increase the harvest rate by planting the leaves facing upwards, so is the citrus leaf facing upwards a long growth? The answer is obviously:

No way!

Citrus wants to have a high fruit setting rate, fertilization management is indispensable, especially top dressing, you can use powder potassium dihydrogen phosphate + imported chelated boron fertilizer before citrus flowering, which can improve the flowering and fruit setting rate of citrus, and the later use of high potassium water-soluble fertilizer containing 44 potassium is not less, the fruit expansion effect is good, the citrus fruit is large, and the fruit is more than Qinyou.

1 2-year-old young trees, focusing on cultivating each branch tip, fertilization to the principle of thin fertilizer from violet, and more application before and after the shoots. One month after planting, the new roots begin to move, and thin water and fertilizer can be applied. Apply water-soluble fertilizer once before each new shoot germination 10-15 days before the new shoot germination and during the new shoot stop growth period, and strive to extract 3 or 4 strong shoots a year.

First-fruiting trees (3-4 years old) are repeated in winter, before spring, and before autumn. The principle of not doing it before the summer. That is, from December to January of the following year, fertilizer is applied after fruit picking, which is needed for the spring shoot period, and water-soluble fertilizer is the main one.

In February, the tree is not applied before the spring shoots, and the weak pine trees are applied with water-soluble fertilizer once to promote the growth of spring shoots. In May and June, no fertilizer is generally applied to control the growth of summer shoots. Re-apply before autumn, mainly with fast-acting water and fertilizer, the purpose is to promote the autumn shoots, lay a good foundation for the second year to increase production, 8-10 months can be applied 1-2 times of water-soluble fertilizer to strengthen shoots and fruits.

Middle-aged fruiting trees are fertilized 4-5 times a year, mainly before and after fruit picking, before spring shoots, and before autumn shoots. Late-maturing seeds, medium-maturing varieties with more fruits, and weaker fruiting trees should be applied before fruit picking; Early-maturing seeds and medium-ripening seeds with little fruiting amount are applied after fruit picking.