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I wonder if you're in the south or in the north? If you live in the north and you have some flowers from the southern environment, specifically, such as rhododendrons, gardenias, white orchids, etc., then these yellow leaves are caused by iron deficiency. Because the water in the north is alkaline, it cannot dissolve iron ions to supply plants, and it will turn yellow leaves.
The easiest way to deal with iron deficiency yellow leaves, white vinegar 5, water 95, sprayer spray on these yellow leaf plants, once a day, about ten days later, it will be a dark green leaf.
Special reminder of two points: first, only some specific plants can be sprayed with vinegar water, and the vast majority of plants should not be sprayed and cannot be sprayed. Second, even in Jiangsu and Zhejiang, if the gardenia has a strong green leaf color, it must also be sprayed with vinegar water.
Other ways to improve pH are: ferrous sulfate is watered after mixing water at 1:100.
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Generally, it should be nitrogen supplement.
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Symptoms of elemental deficiency in flowers and plants.
1. The growth of nitrogen deficiency is hindered, the leaves are small and light in color, the leaves are sparse and easy to fall, which affects photosynthesis, so the growth is poor, the plants are smaller, the branches are less, and the fruits are small and few.
2. The growth of phosphorus deficiency is inhibited, the plant is dwarf, the leaves become dark green, gray and dull, with purple spots, and finally die and fall off.
3. Potassium deficiency leaves appear brown spots, abnormal wrinkles, leaf margins curl, and finally scorched, and the symptoms are like fire.
4. The growth of calcium-deficient roots is inhibited, the roots are many and short, the cell wall is sticky, and the apical cells are destroyed, resulting in rot.
5. Magnesium deficiency causes green deficiency, yellowing and white flower disease. Magnesium-deficient flowers often begin to fade green from the lower leaves of the plant, appear yellowing, and gradually spread to the upper leaves, the veins remain green at first, the veins of the later leaves turn yellow, and soon the lower leaves turn brown until they die.
6. When iron deficiency and iron deficiency, the upper young leaves of the branches are damaged, the lower old leaves are still green, the flower mesophyll tissue is light green when the iron deficiency is slight, the leaf veins remain green, and the young leaves are all yellowish and white when it is severe, and there are dead spots and gradually scorched and fallen off.
7. When manganese deficiency flowers lack manganese, the leaves first turn pale with some gray, and then brown spots are found at the tip of the leaves, which gradually spread to other parts of the leaves, and finally the leaves wither rapidly, the plant growth becomes weaker, and the flowers cannot be formed.
8. The auxin in zinc-deficient flowers is destroyed, and the growth of plants is inhibited and diseases are produced. Good zinc nutrition can enhance the resistance of plants to fungal diseases.
9. Sulfur deficiency causes green deficiency, and the veins of flower leaves are yellow, but the mesophyll tissue still remains green, which can be distinguished from the symptoms of magnesium deficiency and iron deficiency. Sulfur deficiency begins with red blight at the base of the leaves, and usually the top leaves of flowering plants are damaged early, the leaves are thick, the branches are thin and lignified.
10. Plants deficient in trace elements have a greater demand for nitrogen, phosphorus, potassium, calcium, magnesium and sulfur for growth and development, and less demand for iron, manganese, zinc, copper, boron, selenium, molybdenum, etc. However, the lack of trace elements will also be detrimental to the growth and development of plants. Therefore, it is necessary to properly apply micro-fertilizer to ensure that the flowers are always blooming and the leaves are always green.
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1. Insufficient fertilization, especially if nitrogen fertilizer has not been applied or the potting soil has not been changed for a long time, the nitrogen nutrient in the soil is insufficient, resulting in thin branches and leaves, thin and yellow leaves;
2. It is necessary to pour the pot in time, take the plant out, replace it with a larger pot in the transportation section, load it with a new loose and fertile cultivation soil, and replant it;
3. After watering thoroughly, put the seedlings in a semi-bright place next to the hall, and apply thin liquid fertilizer or compound fertilizer after they resume growth.
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In the process of plant growth, if there is a lack of nutrients its leaves are easy to yellow, then a large amount of nitrogen fertilizer is needed to be applied to it, and a small amount of phosphorus and potassium compound fertilizer can restore the plant leaves to vitality, and suffer from pests and diseases that cause yellowing, then potassium fertilizer needs to be applied to increase the disease resistance of the plant, in fact, it can also be replaced by traditional compound fertilizer with Trim granule compound fertilizer.
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Dear, hello happy to serve you Yellow leaves are generally caused by the lack of nutrients in plants, so this problem can be solved by fertilization. The specific type of fertilizer and the method of use should be determined according to the cause of yellow leaves and the type of plant. 1.
If the yellow leaves are caused by nitrogen deficiency, nitrogen fertilizers with higher nitrogen content can be used, such as urea, ammonium sulfate, etc. It is also possible to use well-rotted organic fertilizers or chemical fertilizers with high key nitrogen to provide enough nitrogen for plants to absorb. 2.
If the yellow leaves are caused by potassium deficiency, potassium-containing fertilizers can be used, such as potassium sulfate, potassium chloride, etc. In addition, applying alkaline fertilizers to lawns can also help increase the potassium content in the soil and promote plant growth. 3.
If the yellow leaves are caused by magnesium deficiency, magnesium-containing fertilizers can be used, such as magnesium sulfate, multi-element fertilizers, etc. However, it should be noted that the use of these fertilizers containing magnesium should be carried out in an appropriate manner to avoid excessive fertilizer and affect the health of the plant. Only by choosing the right fertilizer, adding the appropriate amount, and treating it according to the specific situation can we effectively prevent and improve the problem of yellow leaves.
It is recommended to understand the fertilization needs of plants and know the appropriate type of fertilizer and how to use fertilizer before using fertilizer. If my answer is helpful to you, please give a thumbs up (comment in the lower left corner), look forward to your like, your efforts are very important to me, and finally I wish you good health and a happy mood!
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The general manifestations of nitrogen deficiency are: the plants are short and weak; The leaves are yellow-green, yellow-orange and other abnormal green, and the base leaves gradually dry and wither; Less branching of the root system; The tillering of cereal crops was significantly reduced, or even no tillering, the young panicle differentiation was poor, the branches were few, the panicle shape was small, the crops were significantly premature senescence and early maturity, and the yield was reduced.
Crops have the ability to absorb and assimilate inorganic nitrides. Therefore, in addition to a small amount of soluble nitrogen-containing organic matter existing in the soil, such as urea, amino acids, ammonium, etc., the nitrogen absorbed by crops from the soil is mainly ammonium salt and nitrate, both ammonium nitrogen and nitrate nitrogen, and the ammonium nitrogen absorbed into the body can be directly photosynthesized by the organic acid of the product Mingzhong to form amino acids, and then form other nitrogen-containing organic matter.
Nitrate nitrogen can only be absorbed and utilized after it is reduced to ammonium nitrogen in the body. The ammonia absorbed by plants and the ammonia reduced by nitrate nitrogen can not accumulate too much in the body, otherwise it will poison the plant, and the ammonia poisoning will reduce the respiration of the plant and hinder the protein synthesis.
Unreduced nitrate nitrogen can accumulate in plants, such as dry crops such as wheat and tobacco and salt-tolerant plants growing on saline soils, which can accumulate more nitrate, and vegetables can also accumulate a large amount of nitrate in leaves.
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There are many reasons for the yellowing of leaves, for trees that are not tolerant to waterlogging, if there is too much watering, there is no water in the soil to drain out, and the root system will cause yellow leaves due to lack of oxygen.
On the contrary, if you water too little, it will also cause yellow leaves due to lack of water, so you should quickly replenish the water.
When the trees are exposed to strong light, the leaves will also turn yellow, and the shade should be shaded in the summer for the shade-loving plants.
In the process of tree maintenance, the bridge can be used to properly apply water-soluble fertilizer to the fertile leaves.
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Apply organic fertilizer and water thoroughly.
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Sometimes the leaves grow yellow, so we just need to add fertilizer to the flower water, which is more conducive to plant growth. The most familiar water for raising flowers is rice water, which can not only provide fertilizer, but also save water. If you always use tap water for watering, it will lead to soil compaction.
There is also the use of water from fish tanks for watering flowers. There is a good organic fertilizer in the fish tank water, which is very suitable for the growth of plants. It can help plants grow more lushly.
There is also beer, which can be diluted with beer and watered to help plants grow better. At the same time, we can also use cotton cloth to wipe the leaves, which can also help the leaves of the plant grow more lush and green.
After fermentation, okara is diluted with water and can also be used to raise flowers. These homemade flower water is very suitable for growing flowers. These flowers are more suitable for plant growth.
Water it, water it on a sunny day, don't water it on a cloudy day, don't let the sun shine, and you'll be fine in a few days.
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