Some views on water spraying of orchids

Orchid spray is also foliar watering, is to use a sprayer (spray pot) will orchid leaves up and down the foliage, water spray wet, water to flow into the bud heart, this practice is very common, in fact, there are a lot of pay attention to spray water, below we will see what pay attention to.

1. Timing of foliar watering

After the sun goes down or the orchid leaves do not reach the sun, they can be sprayed with a sprayer to wet the orchid leaves. The main function is to supplement the moisture lost by the orchid leaves during the day. It can be sprayed 1-3 times depending on the situation, such as 17-18, 22-23, 6-7, of course, depending on the growth status of the sprouts. The foliar watering is mainly to imitate the clouds at night on the mountain. Dew is formed on the orchid leaves. The orchid leaves absorb moisture. Therefore, the orchid is on the mountain. It does not rain for a long time. The main factor in survival.

Second, whether orchids must be watered

(a) To understand this problem, we have to consider whether orchids are short of water, their water absorption characteristics and environmental factors.

Orchids water supplement, mainly from the root absorption of water, followed by the leaf absorption of water at night cloud condensation, but because of different orchid species, orchid nature is different, so it is not necessary to irrigate leaf water, for example, cymbidium root thick and strong, leaf slender, drought resistance, therefore, new bud growth normal, do not need to irrigate leaf water; However, the leaves of the orchid are wide, the roots are less, like cool and humid, the leaves are curly or the buds stop growing, so it is necessary to irrigate the leaves, so it depends on the orchid species and the growth status of the buds to decide whether it needs to irrigate the leaves.

Spring orchid grass leaves are small, drought-resistant, can also grow in high temperature and dry environment, but at night watering leaves, new buds come more, grow faster, leaves will become soft, we should reduce watering.

(2) The length of orchid watering time depends on the evaporation of orchid water. If the watering time is too dense and the material is too wet, it will affect the exchange of orchid root moisture, which will lead to rotten roots. If the watering time is too long, it will affect the growth of new buds. Therefore, as long as the watering time is controlled, orchids can grow normally, so there is no need for foliar watering. If the orchid leaves are yellow, curly and the new buds stop growing, they must be watered normally.

The leaves of Wenshan Jialong and Wenshan Long are short and hard. In high temperature and dry environment, it is easy to harden buds. This pot of Wenshan Long has been planted for 4 years. In the past few years, it has been watered once a week in summer. Because the new buds are stiff, the watering time has been shortened to twice a day, but the new buds are still stiff and rotten. This year, the leaves have been watered three times at night. The growth of the new buds returns to normal. Therefore, the characteristics of each orchid are different. The watering method is also different. It needs to be adjusted and changed constantly.

(3) If the environment is humid and not ventilated, there is no need to irrigate foliar water, and ventilation should be strengthened; if it is a dry, high temperature and sunny environment, it is necessary to irrigate foliar water 1-3 times at night to supplement the moisture lost during the day.

(4) Observe the growth of new buds to determine whether to irrigate foliar water, new buds grow more and faster, do not need to irrigate foliar water, pay attention to ventilation, new buds stop growing, foliar yellow, curly, need to irrigate foliar water at night.

(5) depending on the orchid species, if the watering interval is shortened, the orchid buds can grow, and there is no need to irrigate the foliar water; watering cannot solve the problem of stiff buds, and it is necessary to irrigate the foliar water at night. The need for foliar watering depends on the growth needs of orchids.

If the watering time is shortened in summer, orchids can grow normally, so there is no need to irrigate foliar water again. This orchid was watered twice a day in the morning and evening last summer. The materials in the basin are too wet, which affects the water and gas exchange of orchid roots. Black water stains appear at the tail of leaves, and the new buds also stop growing. This summer, the orchid is watered three times at night, and the new buds resume normal growth.

Third, why does foliar watering sometimes cause rotten buds

(a) water quality should be clean: unclean water contains bacteria, fungi, viruses and nematodes, so frequent watering of leaves, easy to cause infection of orchid leaves, resulting in disease, so watering foliar water can be tap water, cold boiled water or reverse osmosis water. In addition, self-made organic liquid fertilizer should be sterilized with pesticides before use to avoid infection.

(2) If the environment is humid, high temperature, and not ventilated, it is not suitable for watering the leaves, and it is not easy to dry after watering the leaves. Water forms a thin film on the orchid leaves to prevent evaporation of stomatal water, and the roots cannot absorb water, thus forming physiological obstacles and causing rotten roots. Therefore, after watering the leaves, observe the orchid leaves. If they are dry within 10 minutes, you can irrigate the leaves with water. If the water in the orchid leaves is not dry after 2 hours, it means that the environmental humidity is high and it is not suitable for watering the leaves. Pay attention to ventilation.

(3) Different types of orchids have different requirements for various environmental conditions. As long as the orchids can grow normally through watering, there is no need to irrigate foliar water; when it is found that the orchids lose green and yellow, the leaves curl, and the new buds stop growing, foliar watering is needed. After watering the foliar water for a certain period of time, it is found that the leaves are anti-green and bright, indicating that the orchids grow in a humid environment and like foliar watering.

(4) Orchids in high temperature, dry, strong light, well-ventilated places, water loss rapidly, if not from the orchid root to replace the water loss, orchid leaf stomata closed, leaf temperature increased, will cause black spots, scorched tail, rotten roots physiological obstacles, new bud growth also followed by stop. Therefore, foliar watering is to supplement the water lost by orchids, the water is normal, the orchid leaves are also normal for photosynthesis, and the natural buds can also grow normally.

However, most of these physiological obstacles occur in the hot and dry environment in summer. When the high temperature season is over and the temperature drops below 28 degrees Celsius, the water supply of orchid roots will be restored to balance, and orchids will grow normally. There is no need to water the leaves again.

(e) Orchids themselves are infected by bacteria, and watering the leaves will make the disease worse.

When it rains, the rain will carry germs, so some orchids will be infected. If the environment is dry, it will not be infected. You can not spray treatment. However, if the environment is humid, you must spray treatment immediately. Otherwise, the germs will infect the whole orchids by moisture.

IV. Details determine success or failure

(I) Orchid cultivation is a systematic project, interlocking, a failure in detail, will cause the failure of orchid cultivation, for example: before I did organic liquid fertilizer orchid cultivation, but after fertilization orchids will get sick rotten buds, but see Yunwei Orchid Garden also with organic liquid fertilizer fertilization, but will not get sick, quite surprised, but after reading the post to understand that the original is to use pesticide sterilization before use, and learn a trick, but also solve the organic liquid fertilizer easy to cause disease problem, so in the process of planting orchids, there will be a lot of problems, we should think about what problems orchids have, and how to solve them, of course, orchid cultivation technology links are as follows:

1. Good orchids = good environment X good technology.

2. Good environment (growth period)= appropriate (light × temperature × humidity × ventilation × temperature difference between day and night)×(month).

3. Good technology =1. Temperature and humidity management ×2. Shade management ×3 planting materials ×4. Watering management ×5. Fertilizer management ×6. Pest management ×7. Others (such as introduction, etc.).

(2) Orchids are easy to get two rot, related to management, summary factor is not clean and sanitary enough, in an open and dry environment, the infection of bacteria is very slow, but if it is in a closed and humid environment, clean and sanitary is very important, this refers to the orchid house, planting materials, pots, orchid watering water quality, can not contain viruses, fungi, nematodes, etc., otherwise, easy to cause two rot, it is necessary to use pesticides to prevent and control.

This black orchid tiger spot is planted with water retention method at the bottom of the basin, mainly to cope with dry environment, orchid water evaporation fast, orchid root can quickly absorb water, provide orchid growth, last year bud growth normal, but this year bud has very serious disease, although the root is still very good, may be breeding miscellaneous bacteria in water, infected orchid, so, orchid under the basin, preferably summer, spring, autumn and winter three seasons, orchid water demand less, should be relatively dry, otherwise easy to cause infection.

5. Improper watering will have adverse consequences. Whether foliar watering is needed depends on the growth status of orchid buds. Of course, in the dry and high temperature environment in summer, orchid water quickly loses, causing physiological obstacles to produce stiff buds. The most effective way is to change the environment and adjust the environment to an environment suitable for orchid growth. If the environment cannot be changed, only increase the watering frequency or foliar watering, but both of them have risks. For example; Increase watering frequency, will cause the planting material too wet, affect the exchange of water and gas, resulting in rotten roots, therefore, if the tail of the leaf has a watery black, that is, excessive watering caused rotten roots, in addition, improper watering of the leaf surface, will also cause rotten buds, so, depending on the environment and orchid species, to constantly adjust, as long as the orchid does not rot roots, new buds can grow normally, is the correct management.

VI. Conclusion

Orchids watering depends on the environment, orchid species, planting materials, seasonal changes in spring, summer, autumn and winter, to decide how to water, watering methods can be divided into normal watering, foliar watering, soaking watering... Such as way, watering time interval rhythm, depending on orchid water consumption and orchid pot size, for example: winter water consumption is less, may be 1 week, or half a month watering 1 time, summer temperature is high, water evaporation fast, may be 1 day watering 1 time, or 1 day night watering leaf water 3 times, watering appropriate, will be reflected in the growth of orchid buds, new buds can grow normally and bloom, is the correct watering method, improper watering, will lead to bud stop growth or rotten buds and rotten roots, therefore, in the actual watering experience, remember the failure experience, adjust the watering method, can raise orchids, so, orchid watering and there is no certain pattern to follow, only in the constant adjustment, find the correct path.

There is no fixed way to raise orchids. Different orchids have different management methods. As long as the new buds of orchids can grow normally and do not get sick, it is the most correct management method.