The influence of fertilizer on the growth of orchids
Today, I will explain to netizens the knowledge about orchids, a member of the orchid family, focusing on the influence of fertilizer on orchid growth. Let's learn about it together next.
The influence of nutrient elements in fertilizer on orchid growth
(1) Nitrogen
Nitrogen is a component of plant proteins, chlorophyll, and enzymes. Vitamins, hormones, alkaloids, and other substances in plants also contain nitrogen. When nitrogen (N) is sufficient, orchids have lush branches and leaves, deep green leaves, and strong growth. Insufficient nitrogen will cause the plant to be stunted, with the lower leaves first turning yellow due to a lack of green, then gradually spreading to the upper leaves. The leaves become thin and small, and growth is slow. Excessive nitrogen can lead to plant lodging and increased susceptibility to diseases and pests.
(2) Phosphorus
Phosphorus is a component of plant cell nuclei and enzymes, which can promote cell division, root development, early flowering, and enhance the drought and cold resistance of orchids. Phosphorus deficiency causes the plant to turn dark green starting from the old leaves, with stems and leaves having a purplish-red color. Later, the leaves turn yellow and are prone to fall off, root development is poor, and the setting rate is low.
(3) Potassium
Potassium mainly participates in plant metabolism and regulation, promoting the formation of chlorophyll and photosynthesis, making the plant grow strong, stems tough, and less prone to lodging, enhancing disease resistance and cold tolerance. When potassium is deficient, old leaves show yellow, brown, or purple spots, leaf tips become withered and curl downward, and leaves turn yellow from the edges to the center, but the veins remain green.
The above sharing is the complete introduction to the influence of fertilizer on orchid growth, for everyone to learn and understand!