Preparation of high-phosphorus and high-zinc liquid fertilizer containing amino acid

Abstract

The invention provides a high-phosphorus and high-zinc liquid fertilizer containing amino acid, and belongs to the technical field of liquid fertilizer preparation. The amino acid-containing high-phosphorus and high-zinc liquid fertilizer is prepared from the following raw materials in concentration: 100 to 150 g / L of amino acid, 250 to 400 g / L of phosphorus, 20 to 100 g / L of zinc, 0.5 to 10 g / L of boron, 0.5 to 5 g / L of iron, 0.5 to 5 g / L of manganese, 0.5 to 5 g / L of a chelating auxiliary agent, 0.5 to 5 g / L of a stabilizing auxiliary agent and 20 to 100 g / L of a synergistic auxiliary agent. According to the method, phosphate radicals and zinc ions can be stably coexistent in a liquid phase at the same time, and zinc phosphate precipitation is avoided; the proportion of phosphorus and zinc is reasonable, flowers can be protected and strengthened, and the fruit setting rate is increased; particularly, amino acids and small molecule peptides are added to improve the flowering phase resistance of crops.

Description

Technical Field

[0001] The invention belongs to the technical field of liquid fertilizer preparation, and in particular relates to a high-phosphorus and high-zinc liquid fertilizer containing amino acids. Background Art

[0002] Phosphorus participates in various physiological and biochemical processes in crops in many ways and is one of the macronutrients necessary for crop growth and development. Phosphorus plays an important role in photosynthesis and the synthesis, transportation and nitrogen metabolism of carbohydrates. Protein synthesis and fat synthesis are affected when phosphorus is deficient. Phosphorus can accelerate cell division and promote the formation and growth of early roots. Phosphorus deficiency will inhibit the formation of new cells, resulting in insufficient root development and stagnation of plant growth. Phosphorus can improve crop stress resistance, especially the ability of crops to resist cold, drought and disease. Phosphorus can promote seed germination, help flower bud differentiation, promote good flowering, and promote maturity and fruiting.

[0003] Zinc is a trace element that is generally lacking in the soil. Zinc affects the photosynthesis, metabolism and nutrient synthesis of plants by affecting the synthesis of various enzymes in plants. Zinc affects the synthesis of chlorophyll in crops. Zinc deficiency cannot synthesize sufficient organic matter even under sufficient light conditions. Zinc deficiency will cause the protective film of crop roots and the protective function of crop epidermal cells to be partially lost.

[0004] Amino acids are an organic nitrogen source that participates in protein synthesis, can effectively increase the chlorophyll content in plants, effectively improve enzyme activity, promote and regulate plant growth, and improve crop quality.

[0005] With the continuous promotion and application of water-fertilizer integration technology, liquid fertilizers have gradually become popular in my country. At present, liquid fertilizers in my country are still in the preliminary research stage, especially the research on high-concentration and high-complex liquid fertilizers. Liquid fertilizers are the preferred fertilizers for irrigation equipment fertilization due to their advantages such as quick dissolution and uniformity. Because of their ready-to-use type, they do not need to be stirred and dissolved, making them very suitable for automated fertilization. In countries where irrigation technology and automated fertilization are popular, liquid fertilizers are widely used.

[0006] In order to allow crops to absorb balanced nutrients, various macro- and micro-nutrients required for plant growth, such as nitrogen, phosphorus, potassium, zinc, manganese, boron, etc., are generally added to liquid fertilizers. However, in the liquid phase of liquid fertilizers, phosphate ions and zinc are prone to metal ion reactions, forming a large amount of precipitation, which reduces the nutrient utilization rate of fertilizers. At the same time, zinc phosphate precipitation easily clogs the filters and drippers of the drip irrigation system, causing losses to the agricultural drip irrigation system. In the domestic production of liquid fertilizers, liquid fertilizers that contain amino acids, phosphorus and zinc are basically blank. Therefore, the development of high-phosphorus and high-zinc liquid fertilizers containing amino acids has important social and economic benefits. Summary of the invention

[0007] In view of the existing technical problems, the purpose of the present invention is to provide a method for preparing a high-phosphorus and high-zinc liquid fertilizer containing amino acids. The high-phosphorus and high-zinc liquid fertilizer containing amino acids has high contents of phosphorus and zinc, and is combined with elements such as boron, iron, and manganese. It contains rich amino acids and small molecule peptides, which can enhance the stress resistance of crops during the flowering period and achieve the effects of promoting flowering, strengthening flowers, and protecting fruits.

[0008] The first aspect of the present invention provides a high-phosphorus and high-zinc liquid fertilizer containing amino acids, which is prepared from raw materials with the following concentrations: amino acids: 100-150 g / L, phosphorus: 250-400 g / L, zinc: 20-100 g / L, boron: 0.5-10 g / L, iron: 0.5-5 g / L, manganese: 0.5-5 g / L, chelating aid 0.5-5 g / L, stabilizing aid 0.5-5 g / L, and synergistic aid 20-100 g / L.

[0009] Preferably, the amino acids include animal-derived composite amino acids, plant-derived composite amino acids, and single amino acids (18 kinds of amino acids are mixed in proportion).

[0010] Preferably, the phosphorus raw materials include industrial grade monoammonium phosphate, ammonium polyphosphate, polyphosphoric acid, phosphoric acid, and potassium dihydrogen phosphate.

[0011] Preferably, the zinc raw material includes zinc nitrate, zinc chloride, zinc oxide and the like.

[0012] Preferably, the boron includes borax, boric acid and the like.

[0013] Preferably, the iron comprises ferrous sulfate or chelated iron.

[0014] Preferably, the manganese comprises manganese nitrate, chelated manganese, manganese sulfate and the like.

[0015] Preferably, the chelating aid comprises: EDTA, EDDHA, glucoheptonic acid and the like.

[0016] Preferably, the stabilizing agent comprises polypeptide protein, complex sugar alcohol, ethylene glycol, glycerol and the like.

[0017] Preferably, the synergistic aid comprises γ-aminobutyric acid GABA, 5-aminolevulinic acid 5-ALA and the like.

[0018] The second aspect of the present invention is a method for preparing the high-phosphorus and high-zinc liquid fertilizer containing amino acids according to the first aspect of the present invention, comprising the following steps: S1. The zinc, iron, manganese and chelating agent are sequentially added to water for chelation reaction for 40-60min, maintaining the reaction temperature at 50-70°C to obtain a mother liquor; S2. Add phosphorus and boron to the mother liquor in S1, stir for 30-60 minutes until completely dissolved, and maintain the temperature at 50-70°C; S3. Add amino acids and stabilizing agents to the liquid formed in S2 and stir for 30 minutes. The temperature drops to 45-50°C; S4. Add synergistic aids to the liquid formed in S3, stir for 10-30 minutes, reduce the temperature to 40-45°C, and cool to room temperature to obtain a high-phosphorus and high-zinc liquid fertilizer containing amino acids.

[0019] Compared with the prior art, the present invention has the following beneficial effects: The amino acid-containing high-phosphorus and high-zinc liquid fertilizer of the present invention has stable physical and chemical properties and has no crystallization, precipitation, stratification and the like phenomena under high temperature, low temperature and normal temperature conditions.

[0020] The amino acid-containing high-phosphorus and high-zinc liquid fertilizer of the present invention can be sprayed or drenched on leaves, and can also be used in sprinkler irrigation and drip irrigation systems. It is easy to use and has the advantages of saving time, labor and fertilizer, and rapid fertilizer effect.

[0021] The amino acid-containing high-phosphorus and high-zinc liquid fertilizer of the present invention has high phosphorus and zinc contents. Phosphoric acid is added to provide acidic conditions so that phosphate radicals and zinc ions can coexist stably in the liquid phase, thereby avoiding the generation of insoluble precipitates such as zinc phosphate.

[0022] The amino acid-containing high-phosphorus and high-zinc liquid fertilizer of the present invention can provide energy and transport carriers for plant flower bud differentiation, promote the effective accumulation of nutrients such as carbohydrates and endogenous regulatory substances, improve the C / N ratio, stimulate the physiological and morphological differentiation of growth point tissues, and achieve the purpose of promoting crop flowering and improving the quality of flowers.

[0023] The amino acid-containing high-phosphorus and high-zinc liquid fertilizer of the present invention has a reasonable ratio of nitrogen, phosphorus, potassium and medium and trace elements, can effectively improve the ratio of male and female flowers, improve the development of flower organs, strengthen flower buds, increase the number of flowering crops, reduce the generation of deformed flowers, and improve the pollination probability and fruit setting rate.

[0024] The amino acid-containing high-phosphorus and high-zinc liquid fertilizer of the present invention can strengthen root cell division, promote root development, increase absorption and synthesis functional areas, make fibrous roots and root hairs that effectively absorb nutrients grow densely, strengthen the nutrient absorption function of the root system, and improve the absorption efficiency of crops for nutrients during flowering period.

[0025] The amino acid-containing high-phosphorus and high-zinc liquid fertilizer of the present invention can effectively provide energy factors to cells, increase the content of soluble sugar and phospholipids in plants, improve the elasticity of cell membranes, reduce the freezing point of cell protoplasm, and enhance the adaptability of cells to temperature changes, thereby increasing the body's cold resistance and antifreeze ability and regeneration and recovery ability.

[0026] The amino acid-containing high-phosphorus and high-zinc liquid fertilizer of the present invention is produced by an organic phosphide esterification process, which can effectively improve the speed of nutrient absorption in plants; at the same time, the addition of a spreader, a penetrant and a wetting agent can make the nutrients evenly spread on the leaves, enhance the nutrient penetration capacity, ensure the effectiveness of the nutrients, fast absorption and long fertilizer effect. Implementation

[0027] The present invention is further described in detail below in conjunction with specific embodiments to provide a better understanding of the present invention.

[0028] Example 1 The amino acid-containing high-phosphorus and high-zinc liquid fertilizer described in the embodiment contains the following components in parts by weight: water 50 servings Amino Acids 5 servings Potassium dihydrogen phosphate 15 servings Zinc Oxide 15.5 servings Boric acid 1 serving Ferrous Sulfate 0.5 serving Manganese nitrate 0.5 serving EDTA 1.25 servings Peptide protein 1.25 servings GABA 10 servings The specific preparation method of the amino acid-containing high-phosphorus and high-zinc liquid fertilizer comprises the following steps: S1. Zinc, iron, manganese and EDTA are added to water in sequence for chelation reaction for 40-60 min, and the reaction temperature is maintained at 50-70 ° C to obtain a mother liquor; Add phosphorus and boron to the mother liquor in S1, stir for 30-60 minutes until completely dissolved, and maintain the temperature at 50-70°C; Add amino acids and polypeptide proteins to the liquid formed by S2 and stir for 30 minutes. The temperature drops to 45-50°C; Add γ-aminobutyric acid to the liquid formed by S3, stir for 10-30 minutes, reduce the temperature to 40-45°C, and cool to room temperature to obtain a high-phosphorus and high-zinc liquid fertilizer containing amino acids.

[0029] Example 2 water 50 servings Amino Acids 5 servings Potassium dihydrogen phosphate 15 servings Zinc Oxide 15.5 servings Boric acid 1 serving Ferrous Sulfate 0.5 serving Manganese nitrate 0.5 serving EDTA 1.25 servings Peptide protein 1.25 servings 5-Aminolevulinic acid 10 servings The specific preparation method of the amino acid-containing high-phosphorus and high-zinc liquid fertilizer comprises the following steps: S1. Zinc, iron, manganese and EDTA are added to water in sequence for chelation reaction for 40-60 min, and the reaction temperature is maintained at 50-70 ° C to obtain a mother liquor; Add phosphorus and boron to the mother liquor in S1, stir for 30-60 minutes until completely dissolved, and maintain the temperature at 50-70°C; Add amino acids and polypeptide proteins to the liquid formed by S2 and stir for 30 minutes. The temperature drops to 45-50°C; Add 5-aminolevulinic acid to the liquid formed by S3, stir for 10-30 minutes, reduce the temperature to 40-45°C, and cool to room temperature to obtain a high-phosphorus and high-zinc liquid fertilizer containing amino acids.

[0030] Example 3 water 50 servings Amino Acids 5 servings Potassium dihydrogen phosphate 15 servings Zinc Oxide 15.5 servings Boric acid 1 serving Ferrous Sulfate 0.5 serving Manganese nitrate 0.5 serving EDTA 1.25 servings Peptide protein 1.25 servings GABA 5 servings 5-Aminolevulinic acid 5 servings The specific preparation method of the amino acid-containing high-phosphorus and high-zinc liquid fertilizer comprises the following steps: S1. Zinc, iron, manganese and EDTA are added to water in sequence for chelation reaction for 40-60 min, and the reaction temperature is maintained at 50-70 ° C to obtain a mother liquor; Add phosphorus and boron to the mother liquor in S1, stir for 30-60 minutes until completely dissolved, and maintain the temperature at 50-70°C; Add amino acids and polypeptide proteins to the liquid formed by S2 and stir for 30 minutes. The temperature drops to 45-50°C; Add γ-aminobutyric acid and 5-aminolevulinic acid to the liquid formed by S3, stir for 10-30 minutes, reduce the temperature to 40-45°C, and cool to room temperature to obtain a high-phosphorus and high-zinc liquid fertilizer containing amino acids.

[0031] The above specific implementation cases of the present invention are described in detail, but they are only examples, and the present invention is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions made to the present invention are also within the scope of the present invention. Therefore, the equalization changes and modifications made without departing from the spirit and scope of the present invention should be included in the scope of the present invention.

Claims

1. A high-phosphorus and high-zinc liquid fertilizer containing amino acids, characterized in that: It is composed of raw materials with the following concentrations: amino acid: 100~150g / L, phosphorus: 250~400g / L, zinc: 20~100g / L, boron: 0.5~10g / L, iron: 0.5~5g / L, manganese: 0.5~5g / L, chelating agent 0.5~5g / L, stabilizing agent 0.5~5g / L, synergistic agent 20~100g / L.

2. The preparation method of the amino acid-containing high-phosphorus and high-zinc liquid fertilizer comprises the following steps: S1. The zinc, iron, manganese and chelating agent are sequentially added to water for chelation reaction for 40-60min, maintaining the reaction temperature at 50-70°C to obtain a mother liquor; S2. Add phosphorus and boron to the mother liquor in S1, stir for 30-60 minutes until completely dissolved, and maintain the temperature at 50-70°C; S3. Add amino acids and stabilizing agents to the liquid formed in S2 and stir for 30 minutes. The temperature drops to 45-50°C; S4. Add synergistic aids to the liquid formed in S3, stir for 10-30 minutes, reduce the temperature to 40-45°C, and cool to room temperature to obtain a high-phosphorus and high-zinc liquid fertilizer containing amino acids.

3. The high-phosphorus and high-zinc liquid fertilizer containing amino acids according to claim 1, characterized in that: The amino acids include animal-derived composite amino acids, plant-derived composite amino acids, and single amino acids (18 kinds of amino acids are mixed in proportion).

4. The high-phosphorus and high-zinc liquid fertilizer containing amino acids according to claim 1, characterized in that: The phosphorus raw materials include industrial-grade monoammonium phosphate, ammonium polyphosphate, polyphosphoric acid, phosphoric acid, and potassium dihydrogen phosphate.

5. The high-phosphorus and high-zinc liquid fertilizer containing amino acids according to claim 1, characterized in that: The zinc raw materials include zinc nitrate, zinc chloride, zinc oxide and the like.

6. The amino acid-containing high-phosphorus and high-zinc liquid fertilizer according to claim 1, characterized in that: The boron includes borax, boric acid and the like.

7. The amino acid-containing high-phosphorus and high-zinc liquid fertilizer according to claim 1, characterized in that: The iron includes ferrous sulfate and chelated iron.

8. The amino acid-containing high-phosphorus and high-zinc liquid fertilizer according to claim 1, characterized in that: The manganese includes manganese nitrate, chelated manganese, manganese sulfate and the like.