The leaves of orchids still blossom if they eat well.

Orchids want to blossom more. In addition to supplying nutrients through the roots, the leaves can also absorb nutrients. Foliar fertilization has the advantages of strong pertinence, fast nutrient absorption and remarkable effect. Therefore, if the orchids are fertilized with foliar fertilizer, the leaves will still bloom if they "eat well".

So, how to master the skills of foliar fertilization of orchids to better achieve the goal of blooming orchids? Please read down carefully:

1. The temperature is suitable

When the temperature is 15-28 ℃, the stomata of the leaves of orchids are all open, and the respiratory function of orchids is very strong. At this time, spraying fertilizer solution is beneficial to the absorption and transport of nutrient elements by leaves, and can improve the fertilizer efficiency.

2. Appropriate humidity

When spraying leaf fertilizer when the air humidity is high, the fertilizer liquid wets the leaves longer and absorbs more nutrients by the leaves; when the air humidity is low, the fertilizer solution dries quickly after spraying, not only the leaves are difficult to absorb, but also because of water evaporation, the concentration of fertilizer liquid on the leaves increases, resulting in fertilizer damage to the leaf surface.

Therefore, foliar fertilizer spraying is best carried out on a windless cloudy or sunny morning. After spraying foliar fertilizer, when the foliar water is dry, the foliar can be wet with clean water, which can not only prevent the damage of foliar fertilizer, but also prolong the infiltration time of foliar, so as to improve fertilizer efficiency.

3. Suitable concentration

Usually in the application of foliar fertilizer, the high concentration is easier to absorb than the low concentration, its penetration is stronger, and the longer the infiltration time is, the better the absorption effect is. But orchids avoid thick fertilizer, improper concentration will often lead to fertilizer damage. Therefore, when spraying foliar fertilizer to orchids, the special organic liquid fertilizer for orchids should be selected and mixed with water 1000 times, mainly light, rather light than thick.

4. Correct position

When applying foliar fertilizer, some flower friends think that foliar fertilizer is sprayed on the leaf surface, but in fact, the stomatal ratio of the leaf surface to the back of the orchid is 3:7, and the back of the leaf has a stronger ability to absorb fertilizer than the leaf surface. Therefore, foliar spraying fertilizer solution should be mainly on the back of orchid leaves, both positive and negative sides should be taken into account, which is more conducive to fertilizer absorption and improve fertilizer spraying efficiency.

5. Look at seedlings and apply fertilizer

The demand for fertilizer is also different with different sizes and growth states of orchid plants. The absorptive capacity of strong seedlings to fertilizer is higher than that of weak seedlings. The growth of nitrogen-deficient orchid plants is slow, thin and short, and the leaves are yellow. nitrogen fertilizer should be used as the main fertilizer, combined with phosphorus and potassium fertilizer. At flowering stage, the supply of phosphorus and potash fertilizer should be strengthened.

6. Accurate time

Leaf wetting time is suitable for 30-60 minutes, so foliar fertilization is best carried out in the early morning windless weather; spraying fertilizer in the dewy morning will reduce the concentration of the solution and affect the effect of fertilization, so it can be thicker at this time. After spraying leaf fertilizer, you can not be caught in the rain or wash the orchid leaves with water, so it is easy to lose nutrients and reduce the fertilizer efficiency.

If the climate is dry, you can spray the orchid leaves with fine mist after spraying leaf fertilizer when the water on the leaves is dry, so as to prolong the infiltration time and improve the fertilizer efficiency. Foliar fertilization should be continuous, once a week or once every ten days, with an interval of more than a week every month.