1, ring cut flowers
The main purpose is to control underground root activity and reduce the backflow and consumption of nutrients. The circumcision object is a ring cut on a vigorously growing fruit tree. Ring cut part: young tree trunk cut trunk, rich fruit laurel fruit tree ring major branch. The depth of circumcision is appropriate to cut the phloem without damaging the xylem.
2, cut off the root to promote flowers
The purpose is to control the absorption of water and regulate the growth of above-ground parts, and increase the accumulation of organic nutrients in shoots. The root cut position should be selected within the root growth area. Specific operations: Generally, 20-30 cm outside the crown can be used to remove roots. The tree that bears more fruit is about 10 cm in length, and the tree that bears less fruit is about 15-18 cm deeper. The tree without fruit can be about 20 cm deeper. After rooting, rooting 4-5 days to promote flower effect is better.
3, fertilization promote flowers
The purpose is to increase the absorption of nutrients by the root system and ensure that there is sufficient supply of nutrients during the flowering period in the coming year. The principle of fertilization is mainly organic fertilizers, combined with appropriate amount of potassium sulfate compound fertilizers. Fertilization method: combined with root-cutting and flower-strengthening measures, the general fruit-bearing tree is used to produce 6 kg of chicken manure, 0.5 kg of phosphate fertilizer and 0.2-0.3 kg of potassium sulfate compound fertilizer. The application of potash fertilizer can increase the growth of trees to 0.4 kg. For trees with weaker growth and yellow leaves, it is better to apply 0.1-0.2 kg per plant.
4, spraying hormones to promote flowers
The purpose of applying hormones to fruit trees is to regulate the growth relationship between the shoot and the ground by spraying plant growth regulators.
Spraying method: (1) Use paclobutrazol, spraying 75 kg of water per package, spraying leaves 1-2 times, spray once every 15 days. (2) Spray the foliar once with a concentration of 60-80 ppm 2,4-D (1 g powder or 5 tablets diluted with water 20 kg).
YT-T11
YT-T11
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