Why are NPK fertilizers called the "three essential elements" in agriculture?
In crop growth, over 90% of the dry matter is made up of carbon, hydrogen, and oxygen—elements that plants absorb mainly from air and water. In most cases, the soil provides only about 5% of these nutrients, except during extreme conditions like drought or flooding. However, crops typically do not suffer from a lack of carbon, hydrogen, or oxygen. Instead, the main limiting factors for crop yield are often the smaller portion of nutrients supplied by the soil, particularly nitrogen (N), phosphorus (P), and potassium (K).
Although plants require large amounts of N, P, and K for healthy growth, the available quantities of these nutrients in most soils are often insufficient to meet the demands of high-yield crops. This creates a significant gap between nutrient supply and crop needs. Agricultural practices have shown that, in order to boost production, farmers often need to supplement the soil with chemical fertilizers to balance this nutrient demand.
The application of N, P, and K fertilizers has been proven to significantly improve crop yields, which is why they are referred to as the "three essential elements" of fertilizer. This understanding has driven the Chinese fertilizer industry to prioritize the production and development of NPK fertilizers, ensuring that farmers have access to the necessary nutrients for sustainable agricultural productivity.
Others Orthopedics Instruments
We're professional Others Orthopedics
manufacturers and suppliers in China, specialized in providing high
quality medical instruments with reasonable price. We warmly welcome you
to buy or wholesale bulk Others Orthopedics for sale here and get quotation from our factory.
Surgical Skull Tractor,Arthroscopy Punch Forcep,Arthroscopy Trocar Cannula,Arthroscopy Orthopedics Instrument
Tonglu WANHE Medical Instrument Co., Ltd , https://www.vanhurhealth.com