Compound fertilizer containing amino acid chelated titanium and 5-ALA

Abstract

The invention belongs to the technical field of fertilizers, and particularly discloses a compound fertilizer containing amino acid chelated titanium and 5-ALA. The compound fertilizer disclosed by the invention is prepared from the following raw material components in percentage by mass: 2 to 4 percent of amino acid chelated titanium and 0.1 to 0.2 percent of 5-ALA. The compound fertilizer disclosed by the invention is good in stability and high in utilization rate, and can effectively promote the growth of crops and improve the yield and quality of the crops.

Description

Technical Field

[0001] The present invention relates to the technical field of fertilizers, in particular to a compound fertilizer containing amino acid chelated titanium and 5-ALA. Background Art

[0002] Titanium is a beneficial nutrient that effectively promotes crop growth and plays an important physiological catalytic role in crops. my country's soils contain a high total titanium content, averaging 7g / kg as TiO2. However, the vast majority of titanium in soil is in the form of titanium dioxide, which has extremely low solubility and cannot be absorbed and utilized by crops. The amount of soluble titanium that can be absorbed and utilized by crops is even less. Numerous studies have demonstrated that only chelated titanium (i.e., soluble titanium) can be absorbed by crop leaves.

[0003] 5-Aminolevulinic acid (ALA) is an oxygen- and nitrogen-containing hydrocarbon compound. It is the common precursor of all porphyrin compounds and is involved in photosynthesis and respiration. It is a naturally occurring, metabolically active physiologically active substance in plants, essential for plant life. ALA can be synthesized biologically or artificially. It is non-toxic, easily degradable, and leaves no residue. In agricultural production, it can be used as a seedling growth enhancer, yield increaser, herbicide, insecticide, color enhancer, and defoliant. Because ALA is involved in regulating plant growth and development, it is considered a new growth regulator with multiple physiological functions. Therefore, it has important potential applications in agricultural production and has broad application prospects and market development potential.

[0004] However, there is currently little research on the combined application of chelated titanium and 5-ALA. Therefore, providing a compound fertilizer of amino acid chelated titanium and 5-ALA is beneficial to agricultural production. Summary of the Invention

[0005] In view of the above, it is necessary to provide a compound fertilizer containing amino acid chelated titanium and 5-ALA. The compound fertilizer of the present invention has good stability and high utilization rate, can effectively promote the growth of crops, and improve the yield and quality of crops.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A compound fertilizer containing amino acid chelated titanium and 5-ALA comprises the following raw material components by mass percentage: 2-4% amino acid chelated titanium and 0.1-0.2% 5-ALA.

[0008] Furthermore, the amino acid chelated titanium comprises the following raw material components: amino acid and titanyl sulfate, wherein the mass ratio of the amino acid to the titanium in the titanyl sulfate is 2-3; the amino acid comprises glycine and glutamic acid, wherein the mass ratio of the glycine to the glutamic acid is 1-3.

[0009] Furthermore, the preparation method of the amino acid chelated titanium is: mixing the amino acid and the titanium oxysulfate and stirring them evenly, reacting them at 60-70°C while stirring for 90-100 minutes, naturally cooling to 40-45°C, then adjusting the pH to 4.5-5.0, and then naturally cooling to 40°C, filtering, and thus obtaining the amino acid chelated titanium.

[0010] Furthermore, the following raw material components are also included, calculated by mass percentage: 35-45% of major elements and 0.4-0.6% of medium and trace elements.

[0011] Furthermore, the macroelements include phosphorus and potassium, and the mass ratio of the phosphorus to the potassium is 3:1.

[0012] Furthermore, the phosphorus element is provided by phosphorus pentoxide, and the potassium element is provided by potassium oxide.

[0013] Furthermore, the trace elements include magnesium, boron and zinc.

[0014] The present invention has the following beneficial effects:

[0015] 1. The present invention combines 5-ALA with a specially formulated amino acid chelated titanium to form a stable synergistic system that jointly influences the activity of multiple catalytic enzymes in the phenylpropanoid metabolic pathway, thereby effectively activating the phenylpropanoid metabolic pathway and promoting photosynthesis, thereby promoting the synthesis and accumulation of multiple metabolites and photosynthesis products.

[0016] 2. The amino acid chelated titanium of the present invention is prepared by chelating glycine, glutamic acid, and titanyl sulfate. Glycine and glutamic acid have small molecular weights and abundant coordinating groups. When combined as ligands, they have excellent chelating ability for titanium ions. The prepared chelated titanium is highly stable, does not produce precipitation, and has a high titanium content.

[0017] 3. The present invention combines high-potassium, low-phosphorus macroelements and trace elements with 5-ALA and specially prepared amino acid chelated titanium to effectively regulate nutrition, participate in photosynthesis in the life process of crops, as well as the effects of sugar and starch and the energy transfer process, effectively store and regulate energy, and thus improve crop yield and quality. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, a detailed description will be given below with reference to specific embodiments.

[0019] First, the chelating effect of chelated titanium was verified, as shown in the following Examples 1-3 and Comparative Examples 1-4.

[0020] Example 1

[0021] An amino acid chelated titanium, the preparation method of which comprises the following steps:

[0022] (1) Glycine and glutamic acid are taken and mixed evenly at a mass ratio of 1 to obtain a diamino acid;

[0023] (2) Taking a bisamino acid and titanium oxysulfate in a ratio of 2 by mass, mixing the two, stirring evenly, reacting at 60°C while stirring for 90 minutes, cooling naturally to 40°C, and then adjusting the pH to 4.5 with ammonia water, cooling naturally to 40°C, and filtering to obtain the amino acid chelated titanium.

[0024] Example 2

[0025] An amino acid chelated titanium, the preparation method of which comprises the following steps:

[0026] (1) Glycine and glutamic acid are taken and mixed evenly at a mass ratio of 2 to obtain a diamino acid;

[0027] (2) Taking a bisamino acid and titanium oxysulfate at a mass ratio of 2.5, mixing the two, stirring evenly, reacting at 65°C while stirring for 95 minutes, cooling naturally to 42°C, and then adjusting the pH to 4.7 with ammonia water, cooling naturally to 40°C, filtering, and the resulting supernatant is the amino acid chelated titanium.

[0028] Example 3

[0029] An amino acid chelated titanium, the preparation method of which comprises the following steps:

[0030] (1) Glycine and glutamic acid are taken and mixed evenly at a mass ratio of 3 to obtain a diamino acid;

[0031] (2) Taking a bisamino acid and titanium sulfate in a ratio of 3 by mass, mixing the two, stirring evenly, reacting at 70°C while stirring for 100 minutes, cooling naturally to 45°C, and then adjusting the pH to 5.0 with ammonia water, cooling naturally to 40°C, and filtering to obtain the amino acid chelated titanium.

[0032] Comparative Example 1

[0033] An amino acid chelated titanium, the preparation method of which is as follows:

[0034] Glycine and titanyl sulfate are taken in a ratio of 2.5 by mass of titanium to glycine, mixed and stirred evenly, reacted at 65° C. with stirring for 95 minutes, and then naturally cooled to 42° C., and then adjusted to pH 4.7 with ammonia water, and then naturally cooled to 40° C. and filtered to obtain the amino acid chelated titanium.

[0035] Comparative Example 2

[0036] An amino acid chelated titanium, the preparation method of which is as follows:

[0037] Glutamic acid and titanyl sulfate are taken in a ratio of 2.5 by mass to titanium in glutamic acid and titanyl sulfate, and the two are mixed and stirred evenly. After reacting at 65° C. with stirring for 95 minutes, the temperature is naturally lowered to 42° C., and then the pH is adjusted to 4.7 with ammonia water. The mixture is then naturally lowered to 40° C. and filtered to obtain the amino acid chelated titanium.

[0038] Comparative Example 3

[0039] An amino acid chelated titanium, the preparation method of which comprises the following steps:

[0040] (1) Glycine and phenylalanine are taken and mixed evenly with the glycine and glutamic acid at a mass ratio of 2 to obtain a diamino acid;

[0041] (2) Taking a bisamino acid and titanium sulfate at a mass ratio of 2.5, mixing the bisamino acid and titanium sulfate, stirring evenly, reacting at 65°C while stirring for 95 minutes, cooling naturally to 42°C, and then adjusting the pH to 4.7 with ammonia water, cooling naturally to 40°C, and filtering to obtain the amino acid chelated titanium.

[0042] Comparative Example 4

[0043] An amino acid chelated titanium, the preparation method of which comprises the following steps:

[0044] (1) Glycine, glutamic acid and threonine are taken and uniformly mixed in a mass ratio of 2:1:1 to obtain three amino acids;

[0045] (2) Taking the triamino acid and titanyl sulfate in a ratio of 2.5 by mass, mixing the triamino acid and titanyl sulfate, stirring evenly, reacting at 65°C while stirring for 95 minutes, cooling naturally to 42°C, and then adjusting the pH to 4.7 with ammonia water, cooling naturally to 40°C, and filtering to obtain the amino acid chelated titanium.

[0046] The amino acid chelated titanium obtained from each group was placed in a transparent reagent bottle with a secure cap. The bottle was then placed indoors and observed the next day for precipitation and the titanium content was determined. Titanium content was determined according to NY / T 2879-2015, "Determination of Cobalt and Titanium Content in Water-Soluble Fertilizers." The observation and test results are shown in Table 1 below.

[0047] Table 1 Observation and detection results of chelated titanium in each group

[0048] Group Observation results the next day Titanium content (%) Example 1 No precipitation 3.48 Example 2 No precipitation 3.51 Example 3 No precipitation 3.47 Comparative Example 1 There is precipitation 2.01 Comparative Example 2 There is precipitation 2.31 Comparative Example 3 There is precipitation 2.22 Comparative Example 4 There is precipitation 2.35

[0049] As can be seen from Table 1, no precipitate is produced in the chelated titanium of Examples 1-3, while precipitate is produced in all the chelated titanium of Comparative Examples 1-4, and the titanium content is significantly higher than that of Comparative Examples 1-4. This indicates that the combination of glycine and glutamic acid as ligands can undergo a cyclization reaction with the titanium element, thereby allowing titanium to stably exist in the aqueous phase without hydrolysis, and the chelation rate is high, which can increase the titanium content. However, once the type of amino acids is replaced, reduced, or increased, the reaction effect will be reduced, thereby reducing the stability of titanium.

[0050] Secondly, the compounding effect of amino acid chelated titanium and 5-ALA was verified, as shown in Examples 4-6 and Comparative Examples 5-8.

[0051] Example 4

[0052] A compound fertilizer containing amino acid chelated titanium and 5-ALA comprises the following raw material components by mass percentage: 2% of the amino acid chelated titanium of Example 1 and 0.1% of 5-ALA.

[0053] Example 5

[0054] A compound fertilizer containing amino acid chelated titanium and 5-ALA comprises the following raw material components by mass percentage: 3% of the amino acid chelated titanium of Example 2 and 0.15% of 5-ALA.

[0055] Example 6

[0056] A compound fertilizer containing amino acid chelated titanium and 5-ALA comprises the following raw material components by mass percentage: 4% of the amino acid chelated titanium of Example 3 and 0.2% of 5-ALA.

[0057] Comparative Example 5

[0058] A compound fertilizer containing amino acid chelated titanium and 5-ALA comprises the following raw material components by mass percentage: 2% of the amino acid chelated titanium of Comparative Example 1 and 0.1% of 5-ALA.

[0059] Comparative Example 6

[0060] A compound fertilizer containing amino acid chelated titanium and 5-ALA comprises the following raw material components by mass percentage: 3% of the amino acid chelated titanium and 0.15% of 5-ALA of Comparative Example 2.

[0061] Comparative Example 7

[0062] A compound fertilizer containing amino acid chelated titanium and 5-ALA comprises the following raw material components by mass percentage: 4% of the amino acid chelated titanium of Comparative Example 3 and 0.2% of 5-ALA.

[0063] Comparative Example 8

[0064] A compound fertilizer containing amino acid chelated titanium and 5-ALA comprises the following raw material components by mass percentage: 4% of the amino acid chelated titanium of Comparative Example 4 and 0.2% of 5-ALA.

[0065] During the cherry tomato veraison period, a 200-fold dilution of the compound fertilizers from Examples 4-6 and Comparative Examples 5-8 was sprayed. Three sprayings were performed, with each application taking 7 to 10 days apart. Each group of cherry tomatoes was harvested three times, and the number of red fruits in each harvest was counted. The results are shown in Table 2 below.

[0066] Table 2 Number of red fruits and total number of red fruits in each group of tomatoes during three harvests

[0067] Group Number of red fruits for the first time Second red fruit number / piece The third red fruit number / piece Total number of red fruits Example 4 68 7 36 111 Example 5 70 8 41 119 Example 6 67 6 38 111 Comparative Example 5 48 15 23 91 Comparative Example 6 53 12 31 96 Comparative Example 7 55 11 30 96 Comparative Example 8 51 15 34 99

[0068] As shown in Table 2, the number of red tomatoes after treatment with the compound fertilizers of Examples 4-6 is greater, especially the number of red tomatoes during the first harvest. This indicates that the specially formulated amino acid chelated titanium and 5-ALA compound of the present invention can effectively promote tomato color change and shorten the tomato harvest time.

[0069] Finally, the compounding effects of amino acid chelated titanium and 5-ALA with other basic fertilizer components were verified, as shown in Examples 7-9 and Comparative Examples 9-12. In the following examples, the phosphorus element was provided by phosphorus pentoxide, the potassium element was provided by potassium oxide, and the mass ratio of the phosphorus element to the potassium element was 3:1. The magnesium element was provided by magnesium sulfate, the boron element was provided by boric acid, and the zinc element was provided by EDTA chelated zinc; and the mass ratio of the magnesium element, the boron element, and the zinc element was 1:1:1.

[0070] Example 7

[0071] A compound fertilizer comprises the following raw material components, calculated by mass percentage: 35% of macroelements, 2% of amino acid chelated titanium of Example 1, 0.1% of 5-ALA, and 0.4% of medium and trace elements.

[0072] Example 8

[0073] A compound fertilizer comprises the following raw material components, calculated by mass percentage: 40% of macroelements, 3% of amino acid chelated titanium of Example 2, 0.15% of 5-ALA, and 0.5% of medium and trace elements.

[0074] Example 9

[0075] A compound fertilizer comprises the following raw material components, calculated by mass percentage: 45% of macroelements, 4% of amino acid chelated titanium of Example 3, 0.2% of 5-ALA, and 0.6% of medium and trace elements.

[0076] Comparative Example 9

[0077] A compound fertilizer comprises the following raw material components, calculated by mass percentage: 35% of macroelements, 2% of amino acid chelated titanium of Comparative Example 1, 0.1% of 5-ALA, and 0.4% of medium and trace elements.

[0078] Comparative Example 10

[0079] A compound fertilizer comprises the following raw material components, calculated by mass percentage: 40% of macroelements, 3% of amino acid chelated titanium of Comparative Example 2, 0.15% of 5-ALA, and 0.5% of medium and trace elements.

[0080] Comparative Example 11

[0081] A compound fertilizer comprises the following raw material components, calculated by mass percentage: 45% of macroelements, 4% of amino acid chelated titanium of Comparative Example 3, 0.2% of 5-ALA, and 0.6% of medium and trace elements.

[0082] Comparative Example 12

[0083] A compound fertilizer comprises the following raw material components, calculated by mass percentage: 45% of macroelements, 4% of amino acid chelated titanium of Comparative Example 4, 0.2% of 5-ALA, and 0.6% of medium and trace elements.

[0084] During the fruit-swelling stage, cherry tomatoes were sprayed with a 200-fold dilution of the compound fertilizers described in Examples 7-8 and Comparative Examples 9-12. This was done three times, with each spray applied 7 to 10 days apart. For each group of cherry tomatoes, the red fruits were harvested three times and weighed. The average fruit weight (g) of the three harvests was calculated. The results are shown in Table 3 below.

[0085] Table 3 Average single fruit weight of red tomatoes in each group (g)

[0086] Group Average single fruit weight (g) Example 7 4.85 Example 8 4.93 Example 9 4.91 Comparative Example 9 3.82 Comparative Example 10 3.97 Comparative Example 11 2.79 Comparative Example 12 3.89

[0087] As shown in Table 3, the average single fruit weight of tomatoes using the compound fertilizers of Examples 7-9 is significantly better than that of Comparative Examples 9-12, indicating that the cherry tomatoes using the compound fertilizers of the present invention have relatively larger fruit sizes and better yield potential.

Claims

1. A compound fertilizer containing amino acid chelated titanium and 5-ALA, characterized in that: Calculated by mass percentage, the raw material components include: 2-4% amino acid chelated titanium and 0.1-0.2% 5-ALA.

2. The compound fertilizer containing amino acid chelated titanium and 5-ALA according to claim 1, characterized in that: The amino acid chelated titanium comprises the following raw material components: amino acid and titanyl sulfate, wherein the mass ratio of the amino acid to the titanium in the titanyl sulfate is 2-3; the amino acid comprises glycine and glutamic acid, wherein the mass ratio of the glycine to the glutamic acid is 1-3.

3. The compound fertilizer containing amino acid chelated titanium and 5-ALA according to claim 2, characterized in that: The preparation method of the amino acid chelated titanium comprises the following steps: mixing the amino acid and the titanyl sulfate and stirring them uniformly, reacting them at 60-70° C. while stirring for 90-100 minutes, naturally cooling the temperature to 40-45° C., adjusting the pH to 4.5-5.0, and then naturally cooling the temperature to 40° C. and filtering to obtain the amino acid chelated titanium.

4. A compound fertilizer containing amino acid chelated titanium and 5-ALA according to any one of claims 1 to 3, characterized in that: Calculated by mass percentage, the following raw material components are also included: 35-45% of major elements and 0.4-0.6% of medium and trace elements.

5. The compound fertilizer containing amino acid chelated titanium and 5-ALA according to claim 4, characterized in that: The macroelements include phosphorus and potassium, and the mass ratio of the phosphorus to the potassium is 3:

1.

6. The compound fertilizer containing amino acid chelated titanium and 5-ALA according to claim 5, characterized in that: The phosphorus element is provided by phosphorus pentoxide, and the potassium element is provided by potassium oxide.

7. The compound fertilizer containing amino acid chelated titanium and 5-ALA according to claim 5, characterized in that: The trace elements include magnesium, boron and zinc.