How to raise orchid leaves to be brighter and greener, how to make orchid leaves green?

When orchids are not in bloom, they are mainly foliage-oriented. Raise the leaves, so that the leaves are green, shiny, elegant, and the ornamental value is no worse than when it blooms. However, the orchid leaves of some flower friends always look yellow, not bright and green enough, and the sense of vitality is not strong.

If your orchid does not have yellow leaves, dry tips, and can sprout new seedlings normally, and the leaves are not green, it is a matter of maintenance, adjust it in time, and the leaf color can come back in about a month. In response to the problem that the leaves of orchids are not green and shiny, I will teach you 3 methods, which are like "emerald green belts" and have high ornamental value.

Control the lighting.

The color of the orchid leaves has a lot to do with the light. In a brighter environment, the leaves turn yellow-green and do not look so green in order to protect themselves from being burned by the sun. In a low-light environment, the leaves will become particularly green when they synthesize more organic matter in order to absorb more light.

Therefore, if your orchid is placed in a very sunny environment, when the leaves are not green, move to a place with less light to maintain, and the leaf color will gradually turn green.

However, it should be noted that although it is said that the leaves of orchids can turn green when the light is weak, the light is too weak, which is not conducive to the growth of orchids, and the leaves are easy to grow and the growth rate is slow. Therefore, do not keep orchids in places where there is too much light, and do not keep them in places where the light is too weak. For example, now, it is better to properly shade orchids, and 30% to 50% of the shade is sufficient.

In the summer, shade more than 70%, or put it in a place with astigmatism.

Apply fertilizers with high nitrogen elements.

If your orchid has no problem with the light, the leaf color is yellow, and the new seedlings germinate less or grow slowly, you can apply a thin layer of nitrogen fertilizer, which can not only make the new seedlings grow quickly, but also make the leaves green and shiny. When the orchid lacks nitrogen, it is easy for the leaves to turn yellow and grow slowly.

When applying nitrogen fertilizer to orchids, you must pay attention to the concentration to avoid fertilizer injury. For example, when using urea, the concentration is controlled at about 1200 times, watered or foliar sprayed every 15 days, and stopped or switched to other fertilizers after 2 consecutive uses. If too much nitrogen fertilizer is applied, orchids are easy to grow and look luxuriant, but in fact they are very weak, it is difficult to give birth to flower buds normally, and even insects are prone to diseases.

Use organic fertilizer water.

Orchids like a slightly acidic growth environment, if you plant orchids with neutral or alkaline planting materials, or use alkaline fertilizers and water for a long time, resulting in an increase in the pH value of the planting material, even if there is no problem with light and nutrients, there may be yellowing of leaf color, weak growth and other phenomena. Therefore, in the process of raising orchids, it is best to use well-rotted organic fertilizer. It can be a solid organic fertilizer, buried directly in the roots.

You can also water some organic fertilizer water in the peak growing season to promote the growth of orchid plants. In addition to maintaining the slightly acidic nature of the soil, organic fertilizer is also rich in trace elements and microorganisms, which help orchids absorb nutrients.

Simply using fast-acting fertilizer or controlled-release fertilizer, although orchids can grow normally, they always feel that it is not as good as using organic fertilizer. If you don't change the planting material for a long time, and always use fast-acting fertilizer or controlled-release fertilizer, the growth of orchids will deteriorate. In spring, after flowering, the temperature drops a lot in autumn.

Raising orchids to avoid these 3 situations, so that the leaves are green and bright, and the seedlings are not stiff and the roots are not rotten!

Although the yellowing of orchid leaves is not a fatal disease, it will seriously affect the growth of orchids, so special attention should be paid to the allocation of soil and water quality in the management of draw leakage, which can effectively avoid the occurrence of yellowing of orchid leaves. You can also soak the orchid pot with rusty water and mix the water into acidic water to water the orchid. At the same time, increase the shade time, you can move the orchid pot to a cool place for a month or two, and the leaves of the orchid will slowly turn green.

Orchids prefer to stay in a moist environment, and if it lacks water, it will cause dryness and shrinkage, if it is watered too much, it will cause the roots to rot, then the leaves will definitely turn yellow.

Orchids like well-ventilated places, and if the temperature in the home is too high or stuffy, the leaves of the orchid will turn yellow. Orchids belong to semi-negative plants, and if you put it in a shady place, it will not only fail to bloom but also have yellow leaves. Light is an important factor in the formation of flower buds.

Although orchids love coolness, they rarely bloom if they are kept in a hidden place all year round. Orchid artists have long discovered that the leaves of the Yin Orchid of the Mountain are long and the flowers are sparse, and the Yang Orchid of the Mountain is short and has many flowers. Therefore, when cultivating orchids, we must pay attention to the problem of light. In spring and summer, orchids are best shaded with curtains.

Orchid maintenance needs to keep the potting soil dry, too wet and easy to rot roots. This involves the problem of watering, watering should be dry and thorough, and wet should be stopped. The general growth period is at the end of May to June, which requires more watering, the budding stage and flowering period of the extracted leaves are in March and April, and the dormant period is the winter when less watering is needed.

Orchid likes shade, is afraid of direct sunlight, likes moisture, avoids dryness, likes fertile, rich in a large amount of humus, and should be in an environment with air circulation, so the cultivation medium requirements: aeration, softness, good water leakage, and slightly acidic. The most commonly used soil for outdoor cultivation is clay soil.

The climate and environment of various places can affect the growth of orchids, so the way to choose planting materials is different. For example, in the southern Fujian area, the weather is warmer in all seasons, not too cold, and the orchid grows fast, which is suitable for planting with small pebbles.

1. Save resources. Clause.

Second, pebbles are conducive to ventilation and do not accumulate water. Orchids grow well when the relative humidity of the air is 60-70%, and too dry or too wet can easily cause orchid disease.

Controlling water is the most fundamental condition for raising orchids. Orchid leaves have a thicker texture and are protected by cuticles on the surface, therefore, orchid leaves do not consume a lot of water. The pseudosquamous base and fleshy roots of orchid can store a certain amount of nutrients and water, so they are more drought tolerant.

Except for the rooting, germination, and rapid growth periods, which require more water, the other times consume less water. If there is too much water, it will cause water accumulation in the soil, block the respiration of the roots, and it will be easy to rot the roots. Too much water will also cause the cell wall of orchid leaves to be filled with water, and the leaf surface stomata will be opened, resulting in weak nutrients, which in turn will cause weak tissues, poor growth and diseases.

Orchids are rain-loving and fearful, moist and wet. Due to the different air humidity in spring, summer, autumn and winter, orchids have different growth rates and different water requirements. By the way, there is a saying that whether or not to plant orchids depends mainly on whether it will be watered.

Orchids like to be light, and fertilization is rather light than thick. Like other plants, nitrogen promotes the growth of stems and leaves. Phosphorus can promote the development of orchid roots, promote the development of reproductive organs, and stretch stems and leaves.

Magnesium, sulfur, iron and other trace elements can make the leaves green and the flowers strong. Orchids should be fertilized more during the peak growth period, and no fertilizer should be applied during the dormant period or weak growth period. If it is over-fertilized, it will burn the roots and leaves, causing irreparable damage.

1. The water sprayed on the foliage should be clean, without or less impurities (the author's practice, after spraying leaves with tap water for a long time, dirt will be generated, the solution is to add appropriate edible white vinegar to the tap water, let it stand for more than two days, and lightly take the sediment on the surface), you can also use the TDS instrument for water quality testing (conductivity value of water dissolved substances), the lower the value, the purer the water quality! The original value of tap water is between 50 and 300.

2. Foliar sterilization can not be too much, the general efficacy residue is more than 15-20 days, do not repeat the application of pesticides during the interval period, if there are orchids that have been infected with germs, they must be isolated and managed, and return to the orchid room for normal management after the orchid is smelted; It is recommended to apply water-based bactericidal drugs as much as possible.

3. Increase the relative air humidity of the orchid room to prevent dry wind, hot wind and strong winds from damaging the orchid leaves; For example, the roof or balcony of the orchid should be increased with corresponding humidification equipment for microclimate intervention to keep the air humidity at about 70%-80%.

4. Close the orchid room to reduce the dust entering the orchid room to pollute the leaves; Wet curtains can be used to filter polluted air from the outside world; The air in the orchid room is moist and fresh, and there is the use of gas exchange to grow with orchids.

5. It is recommended to apply special foliar fertilizer for foliage plants with comprehensive micro-fertilizer, which dissolves quickly, absorbs well, has no residue, and will not cause foliar pollution; A large number of elements such as urea, phosphorus dipotassium, is best used in pots, if you need to apply outside the roots, it is not too flat, and the foliar application of a large number of elements does not exceed 12 times a year, that is to say, at most once a month, including the growth period and dormancy.

6. Regularly rinse orchids with water, clean the leaves, and prevent harmful substances and impurities accumulated by pesticide stains and inorganic salting! After each shower, it is necessary to ventilate in an emergency, blow dry the water in the leaf clip, prevent rotten hearts, and pay more attention to the budding stage.

Raising orchids, looking at the "leaves" to supplement fertilizer, these 3 kinds are the most suitable.