The fruit trees in the early stage and fruit trees have reached a small year, with less flower, low yield and poor economic returns. In order to make fruit trees "small years are not small", flowers and high yields, plant hormones are the best help for fruit trees.
Phytohormone has the advantages of low dosage, low cost, wide range of physiological effects, rapid effect, easy decomposition in plants, light pollution to the environment, overcoming the size of fruit trees, improving fruit quality, and increasing storage and transportation. The hormones that can increase the fruit set rate of fruit trees are: gibberellin, chlormequat, toxin, 2,4-D (dichlorophenoxyacetic acid), naphthaleneacetic acid, and longer.
1. Gibberellin sprays 100ppm of gibberellin in the flowering period of apple, jujube, hawthorn, citrus, fig and other fruit trees, and the fruit setting rate is increased by one to several times compared with the control.
2. Chlormequat in the 1-3 weeks before the grape flower, with 300 ~ 500ppm chlormein spray grapes, can increase the grape fruit set rate of 30% ~ 100%.
3. Shaper in the apple, apricot, peach, pear and other fruit trees spray a concentration of 5 ~ 50ppm of the toxin, can increase the fruit set rate by 1 to 5 times. The spraying time is from full bloom to falling flowering.
4.2,4-D Spraying 20ppm 2,4-D in the flowering period of hawthorn, jujube, apple and other fruit trees can increase the fruit setting rate by 37%; spraying 8~10ppm 2,4-D with Wenzhou mandarin also has a significant effect.
5. Naphthalene Acetate Grape Berry In the pea grain size, impregnating the ear with 300ppm naphthaleneacetic acid can increase the fruit setting rate by 45%~100%. Spraying jujube trees with 10ppm naphthalene acetic acid can significantly improve the fruit setting rate, and the spraying time is in the jujube flowering period.
6. Compared with the long time of spraying 500~1000ppm in the grape flowering period, the fruit setting rate can be increased by 35%~100%.
The use of plant hormones should pay attention to:
1. The use of hormones should be strictly in accordance with the above tree species, hormone concentration and time of use. For example, spraying on other tree species should be carried out in a small-scale test, and the test should be carried out gradually from a low concentration to a high concentration.
2. When using hormones, it should be carried out in the absence of wind and cloudy weather, or in the morning and evening, in order to absorb and utilize the fruit trees.
When using hormones, it should not be in contact with copper and copper pesticides, and should be used now. It should not be left for too long.
Phytohormone has the advantages of low dosage, low cost, wide range of physiological effects, rapid effect, easy decomposition in plants, light pollution to the environment, overcoming the size of fruit trees, improving fruit quality, and increasing storage and transportation. The hormones that can increase the fruit set rate of fruit trees are: gibberellin, chlormequat, toxin, 2,4-D (dichlorophenoxyacetic acid), naphthaleneacetic acid, and longer.
1. Gibberellin sprays 100ppm of gibberellin in the flowering period of apple, jujube, hawthorn, citrus, fig and other fruit trees, and the fruit setting rate is increased by one to several times compared with the control.
2. Chlormequat in the 1-3 weeks before the grape flower, with 300 ~ 500ppm chlormein spray grapes, can increase the grape fruit set rate of 30% ~ 100%.
3. Shaper in the apple, apricot, peach, pear and other fruit trees spray a concentration of 5 ~ 50ppm of the toxin, can increase the fruit set rate by 1 to 5 times. The spraying time is from full bloom to falling flowering.
4.2,4-D Spraying 20ppm 2,4-D in the flowering period of hawthorn, jujube, apple and other fruit trees can increase the fruit setting rate by 37%; spraying 8~10ppm 2,4-D with Wenzhou mandarin also has a significant effect.
5. Naphthalene Acetate Grape Berry In the pea grain size, impregnating the ear with 300ppm naphthaleneacetic acid can increase the fruit setting rate by 45%~100%. Spraying jujube trees with 10ppm naphthalene acetic acid can significantly improve the fruit setting rate, and the spraying time is in the jujube flowering period.
6. Compared with the long time of spraying 500~1000ppm in the grape flowering period, the fruit setting rate can be increased by 35%~100%.
The use of plant hormones should pay attention to:
1. The use of hormones should be strictly in accordance with the above tree species, hormone concentration and time of use. For example, spraying on other tree species should be carried out in a small-scale test, and the test should be carried out gradually from a low concentration to a high concentration.
2. When using hormones, it should be carried out in the absence of wind and cloudy weather, or in the morning and evening, in order to absorb and utilize the fruit trees.
When using hormones, it should not be in contact with copper and copper pesticides, and should be used now. It should not be left for too long.
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