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It may be that too much fertilizer has been added, or that the concentration of fertilizer in the soil of a single tree is too high. When fertilizing, it is necessary to pay attention to the small amount of fertilizer several times.
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Of course, it is caused by your improper fertilization, and the fertilizer should not be too close to the fruit tree. How far do you have to go? Generally, it depends on the size of the sapling, and if the sapling is large, it should be at least within the range of more than one meter.
Because the tree has large roots and long roots, the trenches around it are about 18 to 20 centimeters deep. If the tree is small, it can be too close to the nearest point, so as not to burn the roots and cause wilting and death. In case of yellowing of the leaves of fruit trees, the fertilizer should be watered immediately and the fertilizer should not be too close to the fertilizer.
Because chemical fertilizer is slowly converted into ammonia after being applied to the soil, ammonia has a burning effect on crops, so it is necessary to pay attention to the use of chemical fertilizers.
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There are many reasons for the yellowing of mandarin leaves, and if it is determined that the yellowing of the leaves after fertilization, the cause should be caused by your improper fertilization.
1. Apply unrotted fertilizer, 2. Excessive or too concentrated fertilizer, 3. The fertilization site is too close to the root system, 4. Use high-chlorine fertilizer.
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Leaf crushing. Symptoms: After two or three years of planting, the branches and leaves are yellow, or the tree becomes worse, there are many flowers, fewer fruits and small fruits, small leaves, curly, dull and dull, few new shoots and short, the most obvious and unique characteristics are strong winds, or pushed by feet or hands, the trunk is easy to break at the grafting site, and the fracture is smooth.
Causes: Seedlings and scion with disease transmission, knife and scissors pruning transmission.
Preventive measures: introduce disease-free seedlings and scion, disinfection of pruning tools, and timely uprooting of diseased trees.
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If the flowers are fertilized excessively or the organic fertilizer that is not decomposed and fermented is applied, the root system will often be burned, and the fertilizer damage of leaf yellow and leaf fall will appear. So what should you do if your plants are fertilized? Is there a remedy?
The answer is yes, let's learn about the remedies for excessive fertilization and the correct fertilization posture.
The remedies for excessive fertilization of flowers are as follows:
1. Clean the roots and repot.
Depot the flowers that have been over-fertilized in time, clean the roots, cut off the damaged roots and dry and yellowed branches and leaves, and wash the roots with potassium permanganate or carbendazim or tobuzin dilution to disinfect and sterilize. Then dry the wound to prevent infection at the roots, prepare new soil, repot it, water it thoroughly, and place it in a cool place, away from direct sunlight, until the flowers and trees return to normal growth.
2. Water thoroughly.
If there are some flowers and trees that are not suitable for changing pots and soil, then immediately water the damaged flowers and trees continuously, water them thoroughly, and water them thoroughly, so that they can play the role of washing the potting soil, and use them to discharge high-concentration fertilizers, and then observe the plants and then deal with them. Wish.
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Summary. What's wrong with the yellow color that starts to turn yellow after growing a young leaf?
Dear, do you have a **?
Yes. In Yulin, Guangxi, fertilizer is only applied once every few months.
You're probably fat. Your situation is less fertilization. And be well hydrated.
Here's a fertilization plan for you. You can refer to the reference.
Send it over. The seedlings are in the second year, that's it, and now it's hot, how can this be done? One of them has already died.
Apply morning and evening, taking care to have enough water. Appropriately shorten the fertilization gap, once a month, nitrogen fertilizer, try to rescue.
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The cause of yellowing of old leaves of mandarin oranges
1. Soil. 1.In terms of soil fertility:
After years of production, there are no nutrients in the soil, and the fruit growers have a clear understanding of the fruit trees will impose fertilizers containing mineral microbial elements, if they are not fertilized in time, the orange trees will show the phenomenon of yellowing of old leaves in bad weather, and look fragile and without nutrients. The soil texture is sticky, resulting in yellowing of leaves: the soil is in a stagnant environment, and the vitality of the root system is significantly weakened, which hinders the absorption and utilization of nutrients by the roots, resulting in the loss of green and yellow leaves.
2.Soil salinity: high soil salt content will lead to nutrients in the soil is difficult to absorb, most of the soil in the southern hills or mountainous areas is reddish, reddish soil acidity is relatively high, too high acid will lead to nutrients being fixed, citrus fruit trees can not absorb nutrients at all, it is difficult to survive, so there will be a phenomenon of green and yellow orange leaves.
2. Pests and diseases
The invasion of pathogens or viruses produces various secretions that clog the transport system, resulting in an inability to absorb water and nutrients, problems with photosynthesis, and yellowing of the leaves.
3. Human factors
Human factors are poor management, the above three are basically natural factors, poor management of the citrus orchard will also lead to the yellowing of old leaves, over-watering or over-fertilization, will affect the trace elements in the soil, fruit farmers resist pests spraying pesticides improper use will also lead to stunted development of fruit trees, for fruit farmers to regularly fertilize and water spraying, the most important thing is to use the right amount of pesticides and to manage the growth trend of mandarin fruit trees.
Governance Measures:
1.The soil is fertile, the soil is the foundation of the growth of the mandarin orange is also the foundation of growth, for the mandarin orange to have a high yield must have fertile soil, the composition of the soil is the most important, especially the minerals in it are conducive to the growth of Fugong, the fruit farmer can renovate the soil before planting, it is recommended to use green bag fertilizer strong demilcotic agent. If the above phenomena such as soil agglomeration occur, it is recommended to use green bags of fertilopeptide synergist, and the corresponding field management measures should be reasonably managed.
2.Spraying pesticides, the yellow leaves of mandarin oranges are likely to be caused by the infestation of pests and diseases, so it is important to spray pesticides regularly, not only to prevent them, but also to effectively kill pests and diseases.
3.Sufficient light, whether animals or plants can not survive without light, mandarin oranges need sufficient light, even the back side also needs sufficient light, daily light and ventilation are the most important.
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It can be due to malnutrition, over-teaching, or soil diseases, all of which can lead to yellowing.
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There are two reasons for the yellowing of old mandarin leaves: the first is that not enough fertilizer is given, and the second is because there is not enough light.
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It is because there is no timely prevention of pests and diseases, and the secretions produced by pathogen invasion eventually lead to yellowing of old leaves.
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Hello dear, according to your description, the yellowing of the leaves of the citrus tree after fertilization may be caused by excessive or improper use of fertilizer, at this time, the following measures can be taken: Wash the roots: Rinse the roots of the citrus tree with clean water to remove residual fertilizer and salt.
Increase the frequency of watering: Increasing the frequency of watering can help dilute the fertilizer and salt in the soil and slow down damage to citrus trees. Prune branches and leaves:
Pruning off damaged, aging leaves and branches is beneficial for the metabolism and nutrient absorption of citrus trees. Adjust the amount and method of fertilization: control the amount of fertilizer each time, choose the type and method of fertilizer by Hemin Flushing, and follow the principles of "less but many times" and "staggered fertilization" to reduce the pressure on citrus trees.
Supplement citrus trees with trace elements: citrus trees lack trace elements will also cause yellowing of leaves, and special fertilizers containing trace elements can be supplemented. If the above methods still do not solve the problem, it is recommended to ask a professional gardener to check and **.
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The yellowing of the leaves of citrus trees after fertilization may be due to over-fertilization, root burns or lack of oxygen in the roots, or it may be a lack of certain nutrients, such as iron, zinc, magnesium, etc. **Here's how:1
Stop fertilizing in time and give plenty of water to help the roots recover. 2.If there is a lack of nutrients, it needs to be replenished in time, either by using fertilizers containing essential nutrients or by adding corresponding nutrients to the soil.
3.If the disease is severe, foliar sprays can be considered to help the leaves absorb nutrients and promote the recovery of leaves. 4.
If needed, a professional horticulturist can be called in for inspection and treatment to ensure healthy growth of the tree.
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Summary. Hello dear <>
High temperature exposure, low rainfall, large water evaporation, small absorption, easy to roll leaves, fallen leaves, fruit drops, and wilt. Insufficient fertilizer and water, small and weak trees, small branches and leaves, yellowing leaves, low nutrient reserves, shallow root system, high temperature exposure, water shortage and high temperature of topsoil, poor stress resistance of shallow roots, easy to wither and rot. Especially on the slopes, the soil quality is poor, the heat of the weathered stone is easy to conduct, and it is a steep slope, the water retention and fertility are poor, the root system is shallow, the vitality is weakened, and the loss of water causes leaf rolling, leaf fall, and root rot.
Fruit trees grown in mountainous areas with inadequate irrigation facilities.
What's going on with the yellow hair curls of the mandarin leaves.
Hello dear <>
High temperature exposure, low rainfall, large water evaporation, small absorption, and Shensen are prone to leaf rolling, leaf dropping, fruit dropping, and wilting. Insufficient fertilizer and water, small and weak trees, small branches and leaves, yellowing leaves, low nutrient reserves, shallow root system, high temperature exposure, water shortage and high temperature of topsoil, shallow roots are wide and disorderly, and the mu has poor stress resistance, which is easy to wither and rot. Especially on the slopes, the soil quality is poor, the heat of the weathered stone is easy to conduct, and it is a steep slope, the water retention and fertility are poor, the root system is shallow, the vitality is weakened, and the loss of water causes leaf rolling, leaf fall, and root rot.
Fruit trees grown in mountainous areas with inadequate irrigation facilities.
There are many reasons for this. If there is a lack of positive and magnesium and calcium deficiency, etc., if you say that it is yellow and rolled, if there is an inverted V-shaped yellowing, it should be a magnesium deficiency. I wish you a happy life! Hope mine is helpful to you ha.
Seedless mandarin you should say 091 seedless mandarin bar, the general yield per mu should be more than 5,000 catties, to the peak production period of seedless mandarin orange per mu should be able to reach about 10,000 catties, of course, it has something to do with your planting method, like Guangxi, Yunnan is dwarf dense planting, 120 plants are planted per acre, after all, other people's planting conditions are good, it can be operated in this way, but if you are in Sichuan, you can also dwarf dense planting, but, due to the light conditions are not as good as Guangxi and Yunnan, Therefore, it is generally planted 60-80 plants per acre of land, and there should be no problem with the yield per mu of more than 6,000 catties, however, seedless mandarin oranges need to be carried out to protect Guoha, otherwise the high yield can not be raised, and the specific 091 seedless mandarin planting technology citrus people have planting technology**You can see, go learn to see it.
My classmates and I are also fruit tree entrepreneurs, and the seedlings sold by Jianyang Zeyou Agriculture and Animal Husbandry are very good, growing strong, and the fruits are full and delicious.
You can eat seafood every half an hour after eating mandarin oranges, seafood is rich in protein and a variety of trace elements, minerals, eating some mandarin oranges can promote the absorption of nutrients in seafood. But if it is a crab, it is recommended to eat it after an hour, because crabs contain arsenic, which will react with vitamin C and cause diarrhea, bloating, and vomiting.
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