Autumn shoots are the fruiting mother branches of citrus in the coming year. The autumn shoots are strong and mature, which will greatly help the growth of citrus in the coming year. However, it is a very troublesome problem that citrus does not put autumn shoots. Today I will share with you what is the reason why citrus does not put autumn shoots. What should I do? What is the reason why citrus does not put autumn shoots, and what to do! In recent times, the continuous high temperature and drought in the south have made many orange farmers very melancholy. Apart from working in the fields under the scorching sun, what worries them even more is the late autumn shoots. Generally speaking, it takes 40-45 days for the new shoots of citrus to mature. If the autumn shoots are too late, it will delay their maturity. The nutrient of the tree will be involved in the later period, which will slow down the fruit expansion speed and reduce the differentiation of flower buds. Accumulated temperature time, especially for trees with high yield, weak tree vigor, and large fruit bearing capacity, has a more serious impact. High temperature and drought, why don't citrus shoot out? Damaged roots Roots are the main organs for citrus to absorb water. When citrus roots are exposed to water stress due to soil drought, the outer epidermis of the absorbing roots is damaged, and most of the root organelles are destroyed and dissolved. The shoots and roots are closely connected, and the root system is damaged, making it difficult to extract the shoots. The autumn shoot period of citrus is at the critical period of fruit swelling, new shoots and root growth. The root system is damaged due to drought, the ability to absorb fertilizer is sharply reduced, and nutrient absorption cannot keep up with consumption. At this time, the fruit is basically stable. The sap fruit is in an advantageous position in the competition, and it is difficult to get the stalk. What is the reason why citrus does not put autumn shoots and what to do Base fertilizer takes effect slowly Although many fruit farmers have applied autumn shoot fertilizer before, the composition of autumn shoot fertilizer is mostly organic fertilizer + quick-acting compound fertilizer. Organic fertilizer has a slow and long-lasting effect, which provides nutritional guarantee for the entire autumn shoot period, while quick-acting compound fertilizer is the driving force for "promoting shoots". However, the long-term drought caused compound fertilizer to dissolve slowly and take effect more slowly. It could not reach the effect of promoting shoots. It was also prone to fertilizer damage. In addition, the root system was damaged and could not be absorbed effectively, making it difficult to extract new shoots. The tree is affected by drought Leaves are the most sensitive organs of citrus to water stress. If long-term drought, the ultrastructure of leaf cells and chloroplasts will change, the arrangement of chloroplast basal grains will be disordered, and even disintegrate in severe cases, affecting its photosynthetic energy efficiency. The growth of shoots is blocked during drought, and it often shows that it matures early and stops growing or is difficult to extract. The main reason is that drought inhibits cell division. What is the reason why citrus does not put autumn shoots, and what to do? The effect of long-term drought on the growth of citrus shoots In the long-term dry environment, the amount of citrus shoots is much lower than under normal conditions, especially the autumn shoots. Source: Fan Weiguo Drought will increase the sap concentration, break the balance between vegetative growth and reproductive growth, promote the differentiation of flower buds, and even the possibility of autumn flowers, increase the abnormal consumption of tree body nutrients and hinder the emergence of new shoots. When citrus is drought, the general trend of hormone changes in the body is that the growth-promoting hormones decrease and the growth-delaying or inhibiting hormones increase, making it difficult to shoot out. Solutions for tangerines without autumn shoots It is a self-preservation behavior that citrus does not shoot out during high temperature and drought. Just imagine, if the new shoots are extracted, the transpiration will undoubtedly intensify, and the tree body will be more affected by water stress, so doing a good job in drought resistance is a major prerequisite for promoting shoots. Do a good job in drought resistance: Measures include irrigation, tree cover, grass cultivation, water spraying, etc., but irrigation is the most effective and direct. Irrigation should be carried out in the morning and evening every day. Remember not to irrigate a large amount of water after a serious drought occurs in the orange orchard to avoid causing a lot of cracking of the fruit. What is the reason why citrus does not put autumn shoots, and what to do? Improve tree nutrition: spray 800~1000 times of sea spirit biological stimulant (foliar type) on the canopy, on the one hand, it enhances photosynthesis, and at the same time supplements tree nutrients, strengthens fruit and promotes shoots; on the other hand, sea spirit contains Humic acid, seaweed extracts, etc. can promote the increase of proline content in plant leaves, promote the water holding capacity of cells, increase the activity of plant cell protective enzymes, reduce the permeability of cell plasma membrane, etc. to comprehensively improve the drought resistance of citrus. Maintenance of root system: Spray 300 times solution of sea spirit biological stimulant (root application type) to repair damaged root system, improve fertilizer efficiency and absorption capacity, and facilitate new shoots. It is recommended to use ditching. The surface of the soil crusts after drought. It is difficult for the water poured on the ground to penetrate into the soil below 5 cm, and it is easy to evaporate, and the fertilizer and water use efficiency is very low. Matters needing attention: â‘ If the drought persists, we must persist in the drought resistance work. After the new shoots emerge 5cm, increase the application of phosphorus and potassium fertilizers to promote maturity and reduce transpiration consumption. â‘¡If the drought is particularly severe, you should give up on promoting the shoots and focus on preserving the trees. The green hills left are there and you are not afraid of not having firewood. Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone Flavored Tea,Lemon Tea,Peach Tea,Ginger Tea DIYAS DEVELOPMENT LIMITED , https://www.diyastea.com