GB18382-2001 "Label, Content and Requirements of Chemical Fertilizers" and GB15063-2001 "Complex Fertilizer (Compound Fertilizer)" are two mandatory national standards issued by the General Administration of Quality Supervision, Inspection and Quarantine. These standards are in effect during production and distribution processes.
The concentration of potassium sulfate compound fertilizer varies significantly, so it’s important to choose the appropriate level based on your needs. Most compound fertilizers are formulated according to the average nutrient levels of soils in a region and the typical requirements of major crops. There are three main concentration categories available: low, medium, and high. Low concentration fertilizers usually have total nutrient content between 25% and 30%, medium between 30% and 40%, and high above 40%. Selecting the right concentration depends on local conditions, soil type, and crop requirements. High-concentration fertilizers are often preferred for cash crops due to their superior quality, reduced residue, and better nutrient absorption.
ATAGO potassium sulfate concentration meter PAL-56S and potassium chloride concentration meter PAL-49S are portable and fast measurement tools. Utilizing the refractive principle, they are ideal for measuring the concentration of various compound fertilizers like potassium sulfate and potassium chloride, serving as an essential tool for production monitoring. These instruments provide scientific data for agricultural development and new variety cultivation. With features to prevent external light interference, they can be used anywhere for accurate concentration measurements. They can directly display mass percentage (Brix), solid content (SD), or refractive index, making them suitable for measuring potassium sulfate and potassium chloride content. Users are welcome to send samples for testing, and ATAGO offers over 200 product application solutions.
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