Fertilization of orchids should be timely

To fertilize orchids, you can't apply fertilizer in the following situations:

First, it is not suitable to apply fertilizer in early spring: the orchid that has just come out of the room is also just recovering from dormancy to recover its growth period. at this time, the temperature is low, and the activity ability is not too strong, if fertilization will remain in the orchid root because the plant cannot be absorbed at this time, causing great fertilizer damage. Fertilization is the best time for the Spring Equinox.

Second, the high temperature in midsummer is not suitable for fertilization: the general temperature is more than 35 ℃, when the orchid plant may be dormant or semi-dormant, the vegetative growth is very slow, the root activity is very weak, and the growth has dropped to extremely weak. If fertilizing at this time, like "adding to the snow", the orchid plant can not be absorbed at all, which is easy to cause fertilizer damage. If there is more fat in summer, the leaves will grow vigorously in autumn, which will also lead to poor flowering of roots and leaves in the following year.

Third, winter is not suitable for fertilization: the winter weather is cold, the temperature is very low, the plant has entered the dormancy period, and the flower bud also enters the vernalization stage, the vegetative growth also slows down gradually with the dormancy, so generally does not apply fertilizer in winter.

Fourth, it is not suitable to apply fertilizer at noon: no matter in what season, it is not suitable to apply fertilizer at noon, it is most suitable to apply fertilizer in the morning and evening, because the temperature is the highest at noon in any season, and fertilization under high temperature is very easy to harm the roots of seedlings.

Fifth, the new orchid just on the pot should not be fertilized: the new orchid just on the pot should not be fertilized, because the pot soil is too fat, orchid plants often can not survive. And because the orchid seedling has experienced several twists and turns, the body is in a state of inhibition, the resistance is weak, and the broken root has not yet healed, so it is very easy to be infected with the virus.

When the orchid bacteria are gradually produced, the hyphae are densely distributed, and an appropriate number of new roots are formed, the orchid plants completely return to normal, and the resistance is enhanced before the "thin fertilizer" can be applied frequently.

Sixth, the orchid plant is not strong and cannot be fertilized: if the orchid plant does not develop normally, the new buds cannot be drawn, and the orchid leaves are grayish green, dull, drooping and scorched, which may be the root system is rotting and dying. At this time must not fertilize, can only spray some foliar fertilizer, supplement nutrition, but should not be too much. If still can not restore growth, can only turn the basin to change soil pruning maintenance, is expected to recover growth.

7. New buds are not suitable for fertilization: when the orchid seedlings on the pot take out leaf buds, it shows that the orchid bacteria have initially formed, the new roots also gradually grow out, and begin to need nutrients, but at this time the new roots are still not exuberant, the roots are few and short, and the function is weak. therefore, it is necessary to wait for the new buds to grow to about 15 cm high before applying thin fertilizer. Langen will be hurt if you fertilize too much.

Eighth, the growth of flower buds is not full and should not be fertilized: when orchid plants grow in early autumn, the more new roots grow, they also begin to sprout flower buds. If the flower buds are not full or even grotesque, it means that the root system is not good, but can only grow reluctantly, but can not satisfy the vegetative growth. This kind of orchid must not apply fertilizer, can only spray a small amount of foliar fertilizer, and should not be excessive frequently, otherwise, the loss outweighs the gain.