Longan is a tropical fruit tree. The quality is excellent. It is the main fruit tree developed by our province. Because the fruit tree is rough and rough, the yield is low. To make the longan have high yield and stable production, there must be a scientific management. How to timely harvest the autumn shoots is to ensure high yield. An important part of stable production. Longan has many flowers and fruit harvest, but the main reason for no flowers is that the tipping period is not appropriate. The last tip is often easy to germinate and the winter shoots are without flowers, and the secondary shoots are late, due to autumn drought and temperature drop. The reason is that the tip is difficult to mature. Unripe longan autumn shoots cannot form flower buds due to insufficient organic nutrients stored. By drawing a comprehensive practical experience, the following techniques can be used to promote the ideal autumn shoot. Black Light Tube,Blb Tube,Blb Bulb,Blb Lamp Changxing leboom lighting product CO.Ltd. , https://www.leboomuvd.com
Longan promotes timely autumn shoot technology
Longan promotes timely autumn shoot technology
Longan promotes timely autumn shoot technology should pay attention to the following points:
First, due to the land, due to varieties. Due to the weather of the year, the autumn shoots were made.
Generally, it should be germinated from mid-September to mid-October, and mature at the end of December. Through the understanding of the fruit farmers, it is considered that the shoots are good in September. The early release can solve the winter shoots with early control. The early shoots are more likely to form flower bud differentiation, and there are also fruit growers. It is considered to be good in the middle and late October, and it is considered to be warm in winter, difficult to suppress winter shoots, and it is difficult to use old fertilizers to promote high fertilizer and moisture. Each of these two methods has its own benefits.
Through understanding, it is believed that the tip of the stone dragonfly turns green early, the tipping period can be later, and the late-maturing Dawuyuan variety turns green, and the last tip should be advanced. In the winter cold year, the tip should be advanced, and the winter warm year should be postponed. I have summarized the experience for many years and thought that it should be postponed in this area. This is suitable for the winter warm season in the region.
Second, heavy application of quick-acting fertilizer: slow-absorbing organic fertilizer, such as chicken, piglet, bean cake, etc. must be applied in time after fruit picking, otherwise it will induce winter shoots due to not being absorbed in time. Insufficient quick-acting fertilizer, the tip is difficult to pump quickly, and the autumn shoots are not strong enough. Generally, the strain can produce 2-4 kg of urea, 30 kg of potassium, mixed with half a catty of potash, and the vertical ditch in the periphery of the canopy. It is better to use the annular groove to apply better. When the plant is in drought, the tree plant is drenched. If magnesium sulfate, zinc sulfate or borax is not applied in the same year, it can be mixed with quick-acting fertilizer at the same time. About 15 days before the tipping period.
Third, timely sparse, promote new shoots in time. Trimming should be carried out after fertilization. (1) Properly handle the higher and denser branches in the middle of the canopy, generally 2-3 saws can be cut off, which is better for absorbing sunlight. (2) Properly remove the mopping branches, the upper branches and the less leaf branches, the pests and branches, and the dense branches. (3) Where the fingers are 2-3 years old, only 2-3 tips are left in the year. (4) timely sparseness. After the autumn shoots germinated, the excess shoots should be wiped out as early as possible, leaving only 1-2 buds.
Fourth, in case of drought, timely irrigation. In the autumn of our province, there is always a drought in autumn. After the fertilization, the soil moisture is insufficient, and the fertilizer can not promote the shoot in time. Therefore, if the longan planted in the mountain does not rain for 1 month, it should be drenched.
5. Eliminate pests and diseases. After the long-term germination of new shoots, it is easy to be taken with mites, so that the new shoots stop growing and cannot form flower buds. At the same time, there are also damages such as curling leaves, scorpions, caterpillars, etc. At about 2-3 cm, once the red leaves are open, 40% dimethoate or trichlorfon 800-1000 times solution can be used for spraying. If the larvae of the beetle should be inserted into the hole.
Sixth, timely control of the tip. Drug control for long-term late shoots and winter shoots in longan. Available: Ethylene 20-30 ml + paclobutrazol 50-100 g + potassium dihydrogen phosphate 100 g + 50 kg water for spraying. If the canopy is short, manual removal can be used. The effect of ethylene dilute varies with temperature. When taking medication, the higher the temperature, the more intense the effect, which may cause phytotoxicity. The ring-cutting and controlling tip is mainly for the long-eyed tree with strong tree strength. It can be cut in a circle in November and the second in a row in January and February. In winter, the winter shoots can be controlled by combining loose roots.
Through timely technical treatment, it is possible to cultivate a healthy and healthy mother tree branch better and more effectively, and lay a good foundation for flowering and fruiting next year.
Total 1 | <First <Prev 1 Next> Last> |
share to: