Multi-functional controlled availability fertilizer

Abstract

The invention relates to multi-functional controlled availability fertilizer, which is prepared from the following components in parts by weight: 70 to 80 parts of nitrogen phosphorus and potassium basal fertilizer, 10 to 35 parts of medium nutrient elements, 2 to 8 parts of micronutrients, 0.05 to 0.1 part of surfactant, 0.05 to 0.1 part of seaweed glucan, 0.05 to 0.1 part of codium fragile, 0.1 to 0.5 part of ammonium zinc phosphate and 0.05 to 0.2 part of pine polyphenols. The multi-functional controlled availability fertilizer is compounded in formula, has a variety of effects, elements such as nitrogen, phosphorus and potassium, medium nutrient elements such as magnesium and boron, and micronutrients such as copper, cobalt and zinc can meet a variety of nutritions needed by the crop growth, and the yield and the quality of crops are improved; the ammonium zinc phosphate and copper, cobalt and zinc micronutrients nanocrystal particles are dissolved slowly to release nutrient cations, and the transport efficiency of nutrient elements is greatly improved.

Description

technical field [0001] The invention relates to a multifunctional long-acting fertilizer. Background technique [0002] Macronutrients, mesonutrients and micronutrients in soil, each of which is essential for crops. Various formulas in the prior art still have problems such as unbalanced nutritional elements and single function. [0003] Further, in the prior art, there are fertilizers that contain comprehensive nutrients, but the fertilizer itself is easy to harden, and the root cause of fertilizer agglomeration is water. How to inhibit the chemical reaction of water release inside the fertilizer or set up water-blocking fertilizers on the surface of fertilizer particles Films, etc., so as to prevent or reduce the agglomeration of fertilizers has become a problem that the fertilizer industry needs to solve urgently. [0004] Zinc is an essential micronutrient and is usually applied in the form of simply ground zinc oxide, which is difficult to achieve even distribution in...

AI Technical Summary

Problems solved by technology

Various formulas in the prior art still have problems such as unbalanced nutritional elements and single function

[0003] Furthermore, in the prior art, there are fertilizers that contain comprehensive nutrients, but the fertilizer itself is easy to harden, and the root cause of fertilizer agglomeration is water. How to inhibit the chemical reaction of water release inside the fertilizer or set up water-blocking fertilizers on the surface of fertilizer particles Films, etc., so as to prevent or reduce the agglomeration of fertilizers has become an urgent problem in the fertilizer industry

[0004] Zinc is an essential micronutrient, usually applied in the form of simply ground zinc oxide, which is difficult to achieve even distribution in the roots of the crop; and has low solubility, resulting in low zinc utilization