Fertilizer synergist as well as preparation method and application thereof

Abstract

The invention discloses a fertilizer synergist, which comprises a solid component and a liquid component, the solid component comprises the following components by weight: 7.5-8.5 parts of polysuccinimide, 5.5-6.5 parts of ammonium carbonate, and 3.0-3.8 parts of zinc oxide; the liquid component comprises ammonia water; 23L of the liquid component is added into every 17.5 kg of the solid component. The invention further discloses a preparation method of the fertilizer synergist and application of the fertilizer synergist. The preparation method has the advantages of simplicity, easiness in industrial production, wide raw material source and low cost. The application of the invention can integrally improve the growth vigor of crops; zinc participates in enzymatic reaction, hormone synthesis and improvement of photosynthetic efficiency and stress resistance, nitrogen and zinc cooperate to realize double improvement of growth vigor and yield of crops, nutrients can be better absorbed under the condition of the same fertilization amount, the weight losing effect is further realized, and the fertilizer has important significance for promoting agricultural sustainable development in China.

Description

Technical field: The present invention relates to the technical field of fertilizers, and in particular to a fertilizer synergist, a preparation method thereof, and an application thereof. Background technology: With the continuous development of agriculture and rural economy, the scale and automation of my country's agriculture are constantly improving, the output and quality of agricultural products are constantly increasing, and the carrying capacity of land is constantly increasing, which puts higher requirements on fertilizers and scientific fertilization techniques. Especially since the Ministry of Agriculture and Rural Affairs introduced the zero growth plan for fertilizers and pesticides, the fertilizer industry is facing the challenge of improving product quality, increasing fertilizer utilization rate and achieving green development.

[0001] The commonly used fertilizer additives on the market are mainly chelated inorganic medium and trace elements. However, inorganic medium and trace elements are difficult for plants to absorb, and the content added to fertilizers is insufficient, which cannot really achieve the effect of reducing weight and increasing efficiency. A large amount of medium and trace elements cannot be decomposed in the soil, and enter the groundwater with soil erosion, causing water quality and environmental pollution. Summary of the invention: The first object of the present invention is to provide a fertilizer synergist.

[0002] The second object of the present invention is to provide a method for preparing a fertilizer synergist.

[0003] The third object of the present invention is to provide an application of a fertilizer synergist.

[0004] The first object of the present invention is implemented by the following technical solutions: A fertilizer synergist comprises a solid component and a liquid component, wherein the solid component comprises the following components by weight: 7.5 to 8.5 parts of polysuccinimide, 5.5 to 6.5 parts of ammonium carbonate, and 3.0 to 3.8 parts of zinc oxide; and the liquid component comprises aqueous ammonia. 23 L of the liquid component was added for every 17.5 kg of the solid component.

[0005] Furthermore, the solid component includes the following components by weight: 8 parts of polysuccinimide, 6 parts of ammonium carbonate, and 3.5 parts of zinc oxide.

[0006] Furthermore, the volume concentration of the ammonia water is 20%.

[0007] The second object of the present invention is implemented by the following technical solutions: A method for preparing a fertilizer synergist comprises the following steps: (1) Weigh 7.5-8.5 parts of polysuccinimide, 5.5-6.5 parts of ammonium carbonate, 3.0-3.8 parts of zinc oxide and 22-25 parts of ammonia water; (2) Add the ammonium carbonate, ammonia water and zinc oxide weighed in step (1) into the reaction tower and stir at room temperature for 10 minutes; (3) The polysuccinimide weighed in step (1) is added into the reaction tower, and the temperature in the reaction tower is raised to 60° C. and maintained for 4 hours to obtain a fertilizer synergist.

[0008] Furthermore, in step (1), 8 parts of polysuccinimide, 6 parts of ammonium carbonate, 3.5 parts of zinc oxide and 23 parts of ammonia water were weighed.

[0009] Furthermore, in step (1), the volume concentration of the ammonia water is 20%.

[0010] The reaction principle is as follows: ZnO+2NH3·H2O+CO3 2- →Zn(NH3)2CO3+H2O n [-CH2-CH2-COOH] + Zn 2+ → [-CH2-CH2-COO⁻]2Zn + 2n H + The third object of the present invention is implemented by the following technical solutions: A fertilizer synergist is used. The fertilizer synergist and urea are uniformly mixed in a mass ratio of 1:200, and then granulated to obtain chelated zinc urea.

[0011] Advantages of the present invention: 1. The preparation method of the present invention is simple, the entire preparation process does not require complex equipment, is easy to industrialize, and has a wide range of raw material sources and low cost, which is conducive to large-scale promotion and application. In addition, the preparation method is environmentally friendly and does not produce harmful by-products, which is in line with the development trend of green and environmentally friendly modern agriculture.

[0012] 2. The application of the present invention can promote the plant type construction, photosynthetic organ development, and underground root expansion, thereby improving the overall growth of crops; through the participation of zinc in enzymatic reactions and hormone synthesis, photosynthetic efficiency and stress resistance are improved, and nitrogen and zinc work together to achieve a double increase in crop growth and yield. Under the same amount of fertilizer, nutrients can be better absorbed, thereby achieving a weight loss effect, which is of great significance for promoting the sustainable development of my country's agriculture.

[0013] 3. Zinc in the fertilizer synergist of the present invention is a trace element, and the chelated zinc is a macromolecule that is not easily lost, thereby effectively reducing the loss of inorganic medium and trace elements in the soil; and the fertilizer synergist of the present invention is easily degraded, thereby reducing pollution to the environment and achieving sustainable development of green agriculture. Description of the drawings: In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is a photo of rice grown for 115 days in the control case; Figure 2 This is a photo of the 20-day-old cabbage seedlings in the control example; Figure 3 This is a photo of peanut seedlings planted 45 days ago in the control case; Figure 4 This is a photo of soybean seedlings planted 18 days ago in the control example; Figure 5 This is a photo of potato seedlings planted 30 days ago in the control example; Figure 6 This is a photo of the roots of eggplant seedlings grown for 45 days in the control example. Specific implementation method: The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0015] Example 1: A fertilizer synergist comprises: 8 g of polysuccinimide, 6 g of ammonium carbonate, 3.5 g of zinc oxide, and 23 mL of ammonia water with a volume concentration of 20%.

[0016] Example 2: A fertilizer synergist comprises: 8.5 g of polysuccinimide, 5.7 kg of ammonium carbonate, 3.2 kg of zinc oxide, and 23 mL of ammonia water with a volume concentration of 20%.

[0017] Example 3: A fertilizer synergist comprises: 7.5 g of polysuccinimide, 6.5 g of ammonium carbonate, 3.7 g of zinc oxide, and 23 mL of ammonia water with a volume concentration of 20%.

[0018] Comparative Example 1: A fertilizer synergist comprises: 8 g of polysuccinimide, 5 g of ammonium carbonate, 3.5 g of zinc oxide, and 23 mL of ammonia water with a volume concentration of 20%.

[0019] Comparative Example 2: A fertilizer synergist comprises: 8 g of polysuccinimide, 6 g of ammonium carbonate, 3.5 g of zinc oxide, and 22 mL of ammonia water with a volume concentration of 20%.

[0020] Comparative Example 3: A fertilizer synergist comprises: 8 g of polysuccinimide, 6 g of ammonium carbonate, 4 g of zinc oxide, and 23 mL of ammonia water with a volume concentration of 20%.

[0021] Example 4: A method for preparing a fertilizer synergist, characterized in that it comprises the following steps: (1) Weigh polysuccinimide, ammonium carbonate, zinc oxide and 20% ammonia water by volume according to the weight and volume of each raw material; (2) Add the ammonium carbonate, ammonia water and zinc oxide weighed in step (1) into the reaction tower and stir at room temperature for 10 minutes; (3) The polysuccinimide weighed in step (1) is added into the reaction tower, and the temperature in the reaction tower is raised to 60° C. and maintained for 4 hours to obtain a fertilizer synergist.

[0022] Experimental example: Using the preparation method of the fertilizer synergist provided in Example 4, 6 corresponding fertilizer synergists were prepared according to the raw material ratios provided in Examples 1-3 and Comparative Examples 1-3, and the status of the products was observed and recorded, as shown in Table 1.

[0023] Table 1 Product phenomena corresponding to Examples 1-3 and Comparative Examples 1-3

[0024] The presence of insoluble matter in Comparative Examples 1-2 indicates that the chelation ratio is not accurate and the zinc oxide cannot be completely chelated. The presence of white precipitate in Comparative Example 3 also indicates that the obtained product is an unsuccessful sample and cannot be used.

[0025] Application examples: The fertilizer synergist provided in Examples 1-3 was prepared into chelated zinc urea. The specific method was as follows: the fertilizer synergist and urea were uniformly mixed in a mass ratio of 1:200, and then granulated to obtain chelated zinc urea.

[0026] The chemical properties of the prepared chelated zinc urea were tested, and the results are shown in Table 2.

[0027] Table 2 Chemical properties and costs of chelated zinc urea prepared from the fertilizer synergists provided in Examples 1-3

[0028] The solid content in Table 2 refers to the proportion of solids obtained after the sample is dried at 105°C to the total amount.

[0029] As shown in Table 2, the chemical properties of the chelated zinc urea prepared in this invention meet the standards of purchased chelated zinc urea, while also being significantly lower in cost. For a 5,000-mu rice paddy, using the chelated zinc urea in this invention, assuming a urea fertilizer rate of 30 kg / mu, would save approximately RMB 57,050 in urea costs: 5,000 x 30 x (2,200 - 1,819.67) / 1,000.

[0030] Comparison example: The chelated zinc urea prepared from the fertilizer synergist of Example 1 and ordinary urea were used to fertilize rice, cabbage, peanuts, soybeans, potatoes, and eggplant under the same planting conditions at the same fertilizer dosage during the planting stage. The crops treated with the chelated zinc urea were recorded as the chelated zinc urea group, and the crops treated with ordinary urea were recorded as the blank group. The growth of the crops in the chelated zinc urea group and the blank group was compared, and the specific results are as follows: Figure 1 The picture shows rice that was planted for 115 days. It can be clearly seen from the picture that the rice in the chelated zinc urea group has a taller and more uniform plant height than the blank group, the plants are upright, and the group is highly uniform; the flag leaf is dark green and shiny, the number of effective tillers is large, the ear emergence rate is higher, and the ear shape is more consistent.

[0031] Figure 2 The photo shows 20-day-old cabbage seedlings. It can be clearly seen from the picture that the cabbage seedlings in the chelated zinc urea group are taller than those in the blank group, have more layers of leaves, and the outer leaves are more expanded. The leaves are dark green with a waxy luster.

[0032] Figure 3 Shown are photos of peanut seedlings planted for 45 days. It can be clearly seen from the picture that the rice seedlings in the chelated zinc urea group are more uniform in plant height, have a larger crown width (lateral coverage area of ​​the plant), more evenly distributed branches, and better coordination between the main stem and side branches than the blank group. They also have more compound leaves, larger leaflet areas, dark green leaves with high glossiness, and flat leaves.

[0033] Figure 4 Shown are photos of soybean seedlings planted for 18 days. It can be clearly seen from the pictures that the soybean seedlings in the chelated zinc urea group are relatively taller than those in the blank group, the stems look thicker, the leaves are more numerous and larger in area, and the leaves are darker green and more shiny; the root system is also more developed, with more roots, wider roots, longer roots, and finer and denser fibrous roots.

[0034] Figure 5Shown are photos of potato seedlings planted for 30 days. It can be clearly seen from the pictures that the potato seedlings in the chelated zinc urea group are taller and have thicker stems than those in the blank group; they have more leaves, a larger leaf area, and a dark green and shiny leaf color; and it can be seen from the picture that the potato seedlings in the chelated zinc urea group have formed obvious tubers, which are larger in size, regular in shape, smooth in surface, well-developed in root system, with thick main roots, dense lateral roots, abundant root hairs, and wide root width, which have obvious advantages.

[0035] Figure 6 Shown are photos of the roots of eggplant seedlings planted for 45 days. It can be clearly seen from the pictures that the roots of the eggplant seedlings in the chelated zinc urea group are more developed than those in the blank group. The main roots are thicker and longer, and the lateral roots and fibrous roots are more numerous and densely distributed, with a wider root width.

[0036] The yield comparison between chelated zinc urea and ordinary urea is shown in Table 3.

[0037] Table 3 Comparison of the yields of the chelated zinc urea of ​​the present invention and conventional urea

[0038] As can be seen from Table 3, the chelated zinc urea of ​​the present invention can effectively increase the yield of various crops compared with ordinary urea (in the control experiment, the yield of eggplant was not counted, so the relevant data is not provided in Table 3).

[0039] The chelated zinc urea of ​​the present invention promotes the construction of aboveground plant type, the development of photosynthetic organs, and the expansion of underground root system through "nitrogen-guaranteed growth + chelated zinc synergistic metabolism", thereby improving the overall growth of crops; it can also promote tillering, stem and leaf expansion, and build a high-yield population; at the same time, through the participation of zinc in enzymatic reactions and hormone synthesis, it improves photosynthetic efficiency and stress resistance, and nitrogen and zinc work together to achieve a dual improvement in crop growth and yield.

[0040] The above control experiment also reflects the key support of chelated zinc urea for the growth of crops in the seedling stage, and verifies the scientific nature of the chelated zinc urea formula matching the fertilizer requirements of crops.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fertilizer synergist, characterized in that The invention comprises a solid component and a liquid component, wherein the solid component comprises the following components by weight: 7.5 to 8.5 parts of polysuccinimide, 5.5 to 6.5 parts of ammonium carbonate, and 3.0 to 3.8 parts of zinc oxide; and the liquid component comprises aqueous ammonia. 23 L of the liquid component was added for every 17.5 kg of the solid component.

2. A fertilizer synergist according to claim 1, characterized in that, The solid component includes the following components by weight: 8 parts of polysuccinimide, 6 parts of ammonium carbonate, and 3.5 parts of zinc oxide.

3. A fertilizer synergist according to claim 1, characterized in that, The volume concentration of the ammonia water is 20%.

4. A method for preparing a fertilizer synergist as claimed in any one of claims 1 to 3, characterized in that: The following steps are involved: (1) Weigh 7.5-8.5 parts of polysuccinimide, 5.5-6.5 parts of ammonium carbonate, 3.0-3.8 parts of zinc oxide and 22-25 parts of ammonia water; (2) Add the ammonium carbonate, ammonia water and zinc oxide weighed in step (1) into the reaction tower and stir at room temperature for 10 minutes; (3) The polysuccinimide weighed in step (1) is added into the reaction tower, and the temperature in the reaction tower is raised to 60° C. and maintained for 4 hours to obtain a fertilizer synergist.

5. The method for preparing a fertilizer synergist according to claim 4, characterized in that: In the step (1), 8 parts of polysuccinimide, 6 parts of ammonium carbonate, 3.5 parts of zinc oxide and 23 parts of ammonia water are weighed.

6. The method for preparing a fertilizer synergist according to claim 4, characterized in that: In the step (1), the volume concentration of the ammonia water is 20%.

7. Use of a fertilizer synergist according to any one of claims 1 to 3 in the field of fertilizer synergism, characterized in that: The fertilizer synergist and urea are uniformly mixed in a mass ratio of 1:200, and then granulated to obtain chelated zinc urea.

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