BB fertilizer, short for “Blended Bulk Fertilizer,” is a formulated fertilizer created by precisely measuring and uniformly mixing two or more single-element fertilizers (such as urea, potassium chloride, monoammonium phosphate, etc.), compound fertilizers, or micronutrient fertilizers, based on soil fertility, crop needs, and fertilization plans. Unlike traditional compound fertilizers, BB fertilizer production involves no chemical synthesis reactions. Its core advantage lies in “customization on demand and precise nutrient matching.”

The core characteristics of BB fertilizer are formula flexibility and targeted nutrient delivery. Soil fertility varies greatly in different regions, and different crops have different nutrient requirements at different growth stages. BB fertilizer can adjust the ratio of nitrogen, phosphorus, potassium, and micronutrients according to specific needs. For example, the proportion of potassium chloride can be increased for orchards deficient in potassium. Furthermore, its nutrient distribution is intuitive, with each raw material particle retaining its original characteristics, thus avoiding problems of excessive or deficient single nutrients after application.

The simple and precise production process is key to the widespread adoption of BB fertilizer. Production relies on fertilizer mixers and precise metering equipment, without the need for complex chemical reaction devices: first, various raw materials are screened to remove impurities and ensure uniform particle size; then, they are precisely weighed according to the formula using a metering system; finally, they are sent to a BB fertilizer mixer for thorough mixing. Once the mixing uniformity meets the standards, it can be packaged and shipped. Compared to compound fertilizer production, BB fertilizer production lines(NPK blending fertilizer production lines) have lower investment costs, simplified processes, and can achieve flexible production of small batches and multiple formulas.

In terms of application, BB fertilizer has wide applicability and is easy to use. It can be applied in various ways, such as broadcasting, banding, or spot application, according to crop needs, and can also be used in combination with organic fertilizers to improve fertilizer efficiency; it also reduces fertilizer waste and lowers planting costs, making it particularly suitable for the personalized fertilization needs of large-scale planting bases.