What is the best fertilizer for orchids?

1. What fertilizer to use for orchids

Inorganic fertilizer: Inorganic fertilizer, that is, chemical fertilizer, can be applied appropriately during the growth stage of orchids. Fertilizers mainly include nitrogen fertilizers and potassium fertilizers. Urea and potassium dihydrogen phosphate can be applied. The urea solution can be diluted 150-200 times with water and used to water the roots of orchids. The potassium dihydrogen phosphate can be diluted 200 times with water and sprayed on the leaves.

Organic fertilizer: During the growth period of orchids, mainly organic fertilizers are applied, such as cake fertilizer, fish bones, orange stalks, fallen leaves, grass, human and animal feces, etc., which can also provide sufficient nutrients for orchids and the fertilizer effect is relatively mild. Organic fertilizer is mainly used as base fertilizer. It must be sterilized and insecticidal, fully fermented, and mixed into the soil when potting to ensure a good supply of nutrients. It can also be used as top dressing. You can dig holes in the soil around the roots of the orchid, apply the fertilizer into it, and cover it with soil.

Water-soluble fertilizer: Orchids can also be applied with water-soluble fertilizer. Mix the water-soluble fertilizer with water and then water it to the roots of the orchid. The water-soluble fertilizer can encourage the roots to fully absorb nutrients.

Special fertilizer: When growing orchids, you can use special slow-release fertilizer for orchids, which is specially developed for orchids and can effectively promote the growth of orchid roots.

2. Precautions for orchid fertilization

Sterilization: When using organic fertilizer for orchids, they can be sterilized in advance. It needs to be fermented first and then steamed at high temperature to kill bacteria and insect eggs.

Apply fertilizer in small amounts and frequently: When fertilizing orchids, be sure to apply fertilizer in small amounts and frequently.