5 kinds of acidic flowers, always easy to yellow leaves, ferrous sulfate is watered regularly, the l

These five acidic flowers prefer to survive in acidic soils, and if alkaline soils appear, they tend to turn yellow leaves. So put it in the conditions you like, and the leaves will glow green.

In the process of cultivating flowers, it is still more difficult to raise acidic materials, and if the soil is deficient in acidic substances, yellow leaves will appear. So be sure to pay attention.

Because these kinds of flowers can grow better after being poured with ferrous sulfate, and they can supplement vitamins.

1. Water yellow. Caused by over-frequent watering, it is characterized by no obvious change in old leaves and yellowing of young leaves; Water should be controlled immediately.

Second, dry yellow. Due to lack of water, caused by drought, it is characterized by the old leaves from the bottom to the top of the first yellow, if the lack of water for a little longer, the whole plant yellow leaves, or even death, should be watered in time.

3. Fat yellow. Caused by too frequent fertilization or too high concentration, it is characterized by thick young leaves, shiny, and uneven; Fertilizer, cultivation and watering should be controlled.

Fourth, hungry yellow. Due to the lack of fertilizer, low fertilization concentration, and the fertilization interval is too long, it is characterized by the first yellow at the young leaves and young stems, if this phenomenon is not fertilized in time, it will also cause the whole plant yellow leaves and even die; For flowers lacking fertilizer, avoid applying a large amount of thick fertilizer at one time, so as not to cause root burning.

5. Iron deficiency yellow leaves. Woody flowers in the greenhouse, due to the large change of soil fertility conditions, often appear yellow leaf phenomenon, characterized by the young leaves obvious, the old leaves are lighter, the mesophyll is yellow, the leaf veins are green, and form a typical network, can be applied ferrous sulfate aqueous solution to solve, the method is: 7 parts of cake fertilizer, 5 parts of ferrous sulfate, 200 parts of water shed collapse into a double liquid watering.

Sixth, the lack of elements and loss of green. If there is a lack of iron in the potting soil, the tips of the leaves will turn yellow first. If nitrogen is deficient, the new leaves are yellowish-white.

Seventh, the source of celery burn. Strong direct sunlight, especially after summer, occurs in the yellow spots of the leaves of the chain lobes, which is called sunburn. When the high temperature is above 30 degrees Celsius, the leaves are also prone to yellowing.

8. Pollution. Orchid leaves should be kept clean, as contamination may turn yellow if splashed with dirt.

9. Frost damage. Orchids suffer from frost damage below 0 degrees, and the symptoms are still yellow leaves.

10. Daily burning. Orchid is a feminine plant that dries out when exposed to the scorching sun, and is prone to burn out even in high-temperature rooms. The solution is to avoid exposure to the sun, regularly use a rag dipped in beer to scrub the leaves, scrub with beer Gentleman's Orchid, not only beautiful but also not easy to lose the moisture of the leaves.

Ten. 1. Leaf spot. It is caused by bacterial infection, and the main cause of the disease is to change the raw soil that is not rotten, apply fertilizer without fermentation, and the potting soil is not changed for a long time, and the fertilizer nitrogen, phosphorus and potassium are unbalanced, and the amount of fertilizer is too large, which can cause this disease.

At the beginning of the disease, small yellow-brown spots appear on the leaf surface, and then the color of the spots gradually deepens, and the area of the spots expands, resulting in ulceration and the whole plant rots.

Solution: The placement of flowers should be ventilated and overcome with direct sunlight. Orchids often have leaf tips dry up, and even whole leaves withered, the first orchid flower friends do not know what to do, orchid leaf tips dry is mainly due to orchid anthracnose and round spot disease, orchids suffer from frost damage or late frost damage, but also easy to form leaf tips dry or discolored, let's look at the specific solutions.

Caused by anthracnose and round spot disease in orchids. This disease occurs in large numbers during the rainy season or during the summer and autumn seasons when it is hot and rainy. The solution is to spray 50% carbendazim 1000 times solution or 500% gram of bacteridan 500 times solution in the disease-prone period, 1 time in 10 days, 3 or 4 times in a row.

Ferrous sulfate is not a fertilizer, so we should try to control the concentration of water at more than 1000 times, and about 1000 times with water, if you are a novice. Therefore, after ferrous sulfate is mixed into water and dissolved in water, it is best to use it up within half an hour, if it is sprinkled in the soil, we must completely cover it with soil, in the position of two or three centimeters of the flower soil.

Ferrous sulfate breeding southern flowers, is an indispensable artifact, but also our necessary fertilizer to raise flowers, it is not a fertilizer, is a kind of regulation, then ferrous sulfate when raising flowers has two misunderstandings, many people do not know.

Therefore, every time you use it, you will find that there is a problem with the flowers, either the leaves are dropped, or the yellow leaves are wilted and died, all because these two misunderstandings are not done, we all know that ferrous sulfate to raise flowers can mainly adjust the pH value of the soil, so that it is stable in a slightly acidic nature, suitable for the absorption and growth of the roots of flowers.

At the same time, it can supplement iron, which can be conducive to absorption and transformation by plants, so that the leaves can photosynthesize and produce chlorophyll, so the leaves will not be disturbed and turn yellow.

1. The concentration is too large

Ferrous sulfate is not a fertilizer, so we should try to control the concentration of water at more than 1000 times, and about 1000 times with water, if you are a novice.

It is recommended that when you use fertilizer to buy at home, you can scoop a spoonful of light potatoes, that is, the amount of one gram of water should be 1000 times, 1000 ml of water, so as to avoid the occurrence of large concentration, causing root burning and seedling burning, and at the same time avoid watering at noon, preferably in the morning or evening.

2. Mix into water

After ferrous sulfate is dissolved in water, it should be used up as soon as possible, because in ferrous sulfate, all that can be absorbed by plants is second-order iron, if it is soluble in water, it is oxidized into third-order iron, and the plant cannot absorb it, so the capsule has no effect, but will inhibit its root system. Tsai Dan.

Therefore, after ferrous sulfate is mixed into water and dissolved in water, it is best to use it up within half an hour, if it is sprinkled in the soil, we must completely cover it with soil, in the position of two or three centimeters of the flower soil.

The effect of raising flowers is better than that of ferrous sulfate, and the key is to use more and not hurt the flowers. The leaves are thick and green.