BB fertilizer, full name is bulk blended fertilizer. It is a kind of compound fertilizer made by blending several granular single fertilizers or compound fertilizers in a certain proportion. Its advantages are: comprehensive nutrient, high concentration, significant production savings, strong pertinence, easy processing, low production cost, no pollution, and flexible formula. Humic acid-coated fertilizer is a complete nutrient fertilizer, slow-release replenishing BB fertilizer, and suitable for mechanical application. These three characteristics determine that the fertilizer has the characteristics of saving fertilizer, saving water, saving labor and increasing production.
Sustained release efficiency
The humic acid coating fertilizer uses three series of coating materials to apply large particles of urea, granular ammonium phosphate, and agglomerate granulation of potassium to realize the “enhancement of controlled separation†of the three major elements to achieve “nitrogen controlâ€. The purpose of promoting phosphorus and keeping potassium.
In terms of “nitrogen controlâ€, the coating material is upgraded from the single controlled nutrient dissolution rate of common coated slow-release fertilizers to the integrated system of delayed physical dissolution, controlled dissolution and diffusion control, multiple physical controlled release combined with urease or nitrification inhibition. , And through the different number of coating (layers), to obtain different slow-release period of the product to meet the changes in nutrient demand for different crops throughout the growth period. As far as "promoting phosphorus" is concerned, it can effectively reduce the fixation of phosphorus by soil ions, increase the movement of phosphorus in soil and stimulate the absorption of phosphorus by crops. As far as "preserving potassium" is concerned, it can effectively reduce the probability of potassium ions being fixed by the crystal lattice and activate the mineral potassium in the soil.
The process concept of promoting separation and control and the production mode of BB fertilizer are combined to change the mode of controlled release of general nutrients in controlled and slow-release fertilizers or controlled-release nitrogen only, and a new type of BB fertilizer product with slow release and increased efficiency is formed.
Full nutrition supply
Full nutrition refers to ensuring the effective supply and even distribution of medium and trace elements on the premise that a large number of elements are supplied in sufficient quantities. The process mode of humic acid-coated fertilizers provides the possibility of effective supply and even distribution of microelements. In the production process of the coating material, the medium and trace elements are added into the mixed liquid of the humic acid and the organic hydrophilic polymer to form a complex state, which is favorable for the absorption and utilization of the crop. At the same time, coating materials containing medium and trace elements are coated on the surface of nitrogen, phosphorus, and potassium granule fertilizers, and are evenly distributed in the soil. This solves the problem of uneven application of trace element roots and becomes a true “full nutritionâ€. "BB fat.
Suitable for mechanical application of BB fertilizer
The humic acid-coated fertilizer adopts the technical concept of stimulating separation and control, and adopts a process of grading and utilization in the design of the production process, that is, in the process of granulating large-particle urea, granular ammonium phosphate, and powdered potassium fertilizer. Separation process, the formation of large, medium and small three kinds of particle size of semi-finished products, and then blended with the similar particle size semi-finished products into soil testing formula fertilizer, thereby increasing the fertilizer uniformity index.