What Is Nitrogen Fertilizer? A Comprehensive Guide to Nitrogen Fertilizer Knowledge

[Nitrogen] is one of the main elements for the growth of Chinese orchids (Cymbidium). Nitrogen is an important material for synthesizing chlorophyll, forming proteins and nucleic acids, and increasing organic matter, and is extremely important for promoting the growth of Chinese orchids. The main functions of nitrogen are to promote stem and leaf elongation, vigorous growth, lush stems and leaves, and so on. Usually, when nitrogen supply is insufficient during the growth period of Chinese orchids, it often easily causes leaf yellowing; newly grown young shoots will be short and thin due to nitrogen deficiency, and the number of leaves will be relatively reduced. At maturity, the pseudobulbs are small, disease resistance is weakened, maturity is advanced, and sometimes flowering occurs early. When nitrogen is supplied in excess, the tissues become weak, stems and leaves grow excessively and droop, disease resistance decreases, mechanical support is also weak, the maturity period is delayed, leaves appear dark green, and quality and yield are greatly reduced. If nitrogen can be fully supplied in a timely manner under appropriate conditions, the ability of Chinese orchids to absorb nitrogen is greatly enhanced, and the production of nitrogen-containing substances such as proteins increases; then the leaf area and organic products of Chinese orchids increase and become larger, chlorophyll content increases, photosynthesis is enhanced, and rapid growth of Chinese orchid plants is promoted, improving quality and yield. Nitrogenous fertilizers can be divided into two types: "organic fertilizers" and "chemical fertilizers." Generally, organic matter is slow-release; when applied in Chinese orchid pots and mixed with the medium, it requires the action of microorganisms in the medium before it can be supplied to Chinese orchids for absorption and use. Examples include chicken manure, pig manure, soybean cake, fish meal, and so on. Chemical fertilizers include commonly seen effective fertilizers below, such as Lan Kang Duo and Lan Shijie Live Enzyme Bacterial Fertilizer (BKC) long-lasting compound fertilizers, whose fertilizer effect lasts 3-6 months after a single application. And quick-acting fertilizers, such as Mula liquid and Aisheng Lan, can be absorbed and used by Chinese orchid plants after application.