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First of all, we must understand the reason for the loss of leaves of potted apple trees, and only by figuring out the reasons and then prescribing the right medicine, we can quickly make the apple trees with leaves fall off germinate quickly! Generally, the causes of leaf loss in potted apple trees can be roughly divided into:
a) Lignification of branches.
The probability of lignification of the branches of potted apples in the process of growth is much higher than that of other plants, when its branches are lignified, the leaves will be yellow, and all the leaves will fall off in the later stage, during the rapid growth of the apple tree, it is necessary to prune its old branches in time to let it grow as many new branches as possible, which will prevent the leaves from falling out due to the lignification of the branches.
b) Excessive watering.
The root system of the potted apple tree is shallow, and it is easy for its roots to rot if it is watered too much, which makes the apple tree unable to breathe and absorb normally, and its leaves will turn yellow and fall off after the branches of the plant do not have nutrients and water.
3) Excessive fertilization or improper fertilization.
Many people in potted apple trees in order to make the apple tree bear fruit speed up on the potted plant to add excessive nutrients, this operation not only can not achieve the desired purpose, but will have a certain impact on the root system of the apple pot, its roots are burned by thick fertilizer can not function normally, so the growth of the plant will be affected, and some people do not know much about fertilization, the wrong fertilizer will also cause serious damage to the fruit tree and lead to leaf loss, and improper fertilization caused by the fall of leaves may lead to the fruit tree to burn the roots and die!
4) Insufficient light.
The growth of apples needs sufficient light, if the apple pot is placed in a shaded environment for a long time, its leaves can not photosynthesize and can not form chlorophyll, the leaves will fade green and yellow, the apple tree pot should be moved to a sunny place for maintenance, so that its leaves can grow normally and will not appear yellow and defoliated.
5) Pests and diseases.
Common pests and diseases of potted apples include anthracnose, ring disease, early defoliation, red spiders, aphids, heartworms, etc., if not timely and effectively controlled, it will seriously harm the leaves and fruits of potted apples, and will cause leaf lesions to fall off.
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Potted flat fruit trees can not lack phosphorus and calcium fertilizer, remove rotten roots, it is recommended that you use thiase copper to irrigate the roots, if there is a lack of phosphorus and calcium, it is recommended that you spray rich people to pat synergistic calcium, spray one or two can alleviate symptoms,
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You can supplement some nutrients in moderation. For example, choose nitrogen and potassium fertilizers to promote the growth of plant rhizomes, water them regularly and place them in a well-ventilated area.
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Cut off all the branches, leave the main trunk and place it outside in a sunny place and let it dry for two weeks. Usually watering is not easy to get too wet, and it was launched in half a month.
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How to make the apple continue to grow after the leaves have fallen off, put the potted apple tree in the shade outside, and the natural winterizer cavity at a temperature of about 0 to 30 degrees for about 20 days, (adjust the number of days according to the temperature), the lower the temperature, the better the dormancy and the faster). Then gradually adjust the temperature, move to the cold storage room, (slow frost process potato serving), slowly move to the indoor temperature above 25 degrees, and then pour the first hand of water, so that it quickly wakes up from the dormant period, to achieve the purpose of rapid sprouts, can make the fruit out of season to market, this is the potted apple.
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Normally, it takes a certain amount of time for the tree to recover, and some nutrient solution can be used to supplement nutrients, 1. Keeping leaves should retain water, and maintaining enough water is the key measure to maintain leaves.
2. Prune the tender shoots, break the top advantage, and promote the germination of side buds, axillary buds and other buds.
3. For trees with a diameter at breast height of more than 7-8 cm, the tree body should be hung with "Happy Forest Hanging Needle Solution" or "Activation Solution" to supplement nutrition and promote bud germination.
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