A Detailed Guide to Making Homemade Foliar Fertilizer for Orchids

Homemade nitrogen fertilizer: prepare some vegetable leaves, peanuts or expired milk powder, grind them into powder, put them into a transparent container, place it in a well-lit spot, seal and ferment, then dilute before use. Homemade phosphorus fertilizer: put fish bones, pork bones, eggshells and similar materials into a container, add some clean water and a fermentation agent, and dilute before use after fermentation. Homemade potassium fertilizer: ferment tea water and dilute it before use.

Add 1 ingredient to foliar fertilizer application and the effect doubles

If you want to improve the effect of foliar fertilizer on orchids, you can add this 1 ingredient when making the foliar fertilizer liquid——urea. Urea has a softening effect on the cuticle of plant leaf epidermal cells, and it will not affect the original nutrients and concentration of the fertilizer liquid. When spraying foliar fertilizer on orchids, after diluting the liquid fertilizer, add a certain proportion of urea to enable the orchids to absorb nutrients faster and better.

After applying foliar fertilizer to orchids, let the fertilizer liquid remain on the leaf surface for a period of time so that the orchid leaves can absorb nutrients more fully. Therefore, when applying foliar fertilizer to orchids, it is generally best to choose a windless cloudy day, or early morning and evening when air humidity is high and air movement is slow.

When spraying foliar fertilizer on orchids, it is best to use a spray bottle, and the liquid sprayed out is best in the form of mist. Fine mist more easily enters the leaf epidermal cells and is less likely to cause water accumulation in the leaf center. When spraying, it is best to spray from the back of the leaves upward. First, this can reduce water accumulation in the leaf center; second, the absorption efficiency of the back of orchid leaves is higher than that of the front, enabling the orchid leaves to absorb more nutrients.