Lanthanum-cerium-neodymium rare earth synergist

Abstract

The invention relates to application of rare earth in agricultural production, in particular to a lanthanum-cerium-neodymium rare earth synergist. The lanthanum-cerium-neodymium rare earth synergist is prepared from the following substances in percentage by mass: 4.5%-5.5% of solid rare earth, 0.6%-1.0% of a regulator, 6.0%-7.0% of trace elements and the balance of water, and the solid rare earth is prepared from lanthanum, cerium and neodymium. The agricultural rare earth synergist project has an excellent yield increasing effect on crops, and has the main functions of increasing yield and income, preventing diseases and removing pests, maturing in advance, preventing cold and resisting drought, loosening soil, reducing the input of nitrogen, phosphorus and potassium, keeping a green environment and the like. Rare earth elements are processed through a special technology, all the elements are in a chelating state and can be timely and fully absorbed and utilized by crops, the disease resistance and quality of the crops are effectively improved, the added plant growth regulator can be directly absorbed and utilized by the plants, and the energy of the plant bodies is reduced.

Description

Technical Field

[0001] The present invention relates to the application of rare earth in agricultural production, in particular to lanthanum, cerium, neodymium rare earth synergist Background Art

[0002] Rare earth is a lanthanide element in the periodic table of chemical elements, referred to as rare earth. Agricultural rare earth (also called rare earth agricultural) is a new science separated from rare earth chemistry and rare earth biology, including plant application and animal application.

[0003] Rare earth elements are a group of elements in the periodic table of chemical elements. They are composed of 15 elements with very similar properties, including lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium, and 17 elements with very similar properties to lanthanide elements, scandium and yttrium. They are collectively called rare earth elements.

[0004] my country is blessed with rare earth resources, ranking first in the world. Due to the unique electronic layer structure of rare earth elements, they have excellent magnetic, optical, electrical and other properties. Therefore, rare earth materials are widely used in many industries such as metallurgy machinery, petrochemical industry, light industry and agriculture, electronic information, energy and environmental protection, national defense and military industry, and high-tech materials, producing significant economic and social benefits. They are indispensable strategic materials for countries around the world to transform traditional industries and develop high-tech and cutting-edge defense technologies.

[0005] In 1917, China discovered the biological effects of barium, strontium and cerium on Spirogyra, which pioneered the study of the biological activity of rare earth elements. In the 1930s, the Soviet Union conducted a large number of experimental studies on the plant physiological effects of rare earths, involving crops such as peas, radishes, cucumbers, flax and rubber, and clarified the promoting effects on the above crops.

[0006] Since the 1970s, my country has made a major breakthrough in 1985 through in-depth experimental research and repeated production practice. It has achieved many results and research reports in the fields of rare earth agricultural technology, soil science, plant physiology, toxicology and hygiene, analysis and testing, and agricultural product technology. It has successfully applied rare earth elements to agricultural production in my country, thus developing decades of intermittent research on the biological activity of rare earths into a practical technology, making China the first country in the world to use rare earth elements as a commercial product in agricultural production.

[0007] The application of trace elements and rare earth elements in the current agricultural development and application field is basically in the blank and experimental promotion stage. At present, most of the trace elements used in fertilizers are still mainly nitrogen, phosphorus and potassium. The crop yield may be high, but the quality is relatively poor. Even if there are some promoted products on the market, most of them are trace elements, which are in an inorganic or molecular state and cannot be effectively and fully absorbed and utilized by crops. Summary of the invention

[0008] The invention relates to a lanthanum, cerium, and neodymium rare earth synergist, which is used to solve the problem that the trace elements in fertilizers cannot be effectively and fully absorbed and utilized by crops, and the quality of crops using existing fertilizers is poor. An agricultural rare earth synergist, calculated by mass percentage, is composed of the following substances: 4.5-5.5% of solid rare earth, 0.6-1.0% of a regulator, 6.0-7.0% of trace elements, and the rest is water, wherein the solid rare earth is composed of three elements: lanthanum, cerium, and neodymium. Furthermore, the trace elements include zinc, manganese, boron, magnesium, and copper.

[0009] Furthermore, the regulator is a pH regulator. The lanthanum, cerium, neodymium and rare earth synergist comprises the following steps:

[0010] (1) selecting a powdered raw material, wherein the raw material particle size is 40-60 mesh, and the solid rare earth has a pH value of 3 and a content of ≥45%;

[0011] (2) (2) Adding 10-30 g of rare earth elements per mu of soil, trace elements, pH regulators, and photosynthetic agents, stirring for 1-2 hours, to obtain a solid rare earth mixture; (3) Adding pure water to a dissolving tank, stirring begins, stirring for 20 minutes, adding nitric acid or hydrochloric acid at a rate of 50 kg / min, stirring for not less than 20 minutes, to achieve an acidity pH value of 2;

[0012] (4) adding the solid rare earth mixture obtained in step (2) to the aqueous solution treated in step (3) at a speed of 48-52 rpm, and stirring at 48-52 rpm;

[0013] (5) After the liquid rare earth is allowed to stand for 4-8 hours, an agricultural rare earth synergist is obtained.

[0014] Furthermore, the method further comprises the following step: allowing the produced agricultural rare earth synergist to stand for more than 4 hours to remove impurities.

[0015] An agricultural rare earth synergist is prepared by any of the above-mentioned preparation methods.

[0016] The agricultural rare earth synergist as described above and the agricultural rare earth synergist prepared by the method described above are used in agriculture.

[0017] The present invention relates to the application of rare earth in agricultural production. The agricultural rare earth synergist project has an excellent effect on increasing crop yields. Its main functions include increasing production and income, preventing diseases and pests, early maturity, cold and drought resistance, loosening the soil, reducing the input of nitrogen, phosphorus and potassium, and maintaining a green environment. According to product technology classification, it is divided into broad-spectrum type, cotton-specific type, fruit-specific type, vegetable-specific type, grain and oil-specific type, forestry-specific type, root crop-specific type and rooting agent.

[0018] Rare earth elements are processed through special techniques. All elements are in a chelated state and can be promptly and fully absorbed and utilized by crops, effectively improving the disease resistance and quality of crops. The added plant growth regulators can be directly absorbed and utilized by plants, reducing energy waste in the plant body. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described below by specific implementation methods. It should be understood by those skilled in the art that the embodiments are only to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0020] Embodiment 1:

[0021] The formula of the agricultural rare earth synergist in this embodiment is as follows: by mass percentage, 4.5% solid rare earth, 0.6% pH regulator, 6.0% trace elements, and the rest is water, wherein the solid rare earth is composed of three elements: lanthanum, cerium, and neodymium;

[0022] The preparation method of the agricultural rare earth synergist is as follows:

[0023] (1) selecting a powdered raw material, wherein the raw material particle size is 40 mesh, and the solid rare earth has a pH value of 3 and a content of 45%;

[0024] (2) adding 10 g of rare earth elements per mu of the raw material, a trace element, a pH regulator, and a photosynthetic agent, and stirring for 1 hour to obtain a solid rare earth mixture;

[0025] (3) Add pure water to the dissolving tank and start stirring. After stirring for 20 minutes, add nitric acid or hydrochloric acid at a rate of 50 kg / min and stir for no less than 20 minutes until the pH value reaches 2;

[0026] (4) adding the solid rare earth mixture obtained in step (2) to the aqueous solution treated in step (3) at a speed of 48 rpm, and stirring at 48 rpm;

[0027] (5) After the liquid rare earth is allowed to stand for 4 hours, a lanthanum, cerium, and neodymium rare earth synergist is obtained.

[0028] 1.1 Experimental units: Houbafang Village, Dusheng Town, Cang County; Xiaowangguanzhuang Village, Xingji Town, Cang County; Dahanzhuang Village, Fenghuadian Township, Cang County.

[0029] 1.2 Test product name: Lanthanum, cerium, neodymium, rare earth synergist

[0030] 1.3 Experimental design: Each test point uses local medium soil, which is slightly alkaline. There are 13.5 acres of jujube trees in Houbafang Village, Dusheng Town, Cang County, 9.7 acres of jujube trees in Xiaowangguanzhuang Village, Xingji Town, Cang County, and 17.6 acres of jujube trees in Dahanzhuang Village, Fenghuadian Township, Cang County, with a total test area of ​​40.8 acres.

Claims

1. Lanthanum, cerium, neodymium and rare earth synergist, characterized in that: The composition is calculated by mass percentage: 4.5-5.5% of solid rare earth, 0.6-1.0% of regulator, 6.0-7.0% of trace elements, and the rest is water. The solid rare earth is composed of three elements: lanthanum, cerium and neodymium.

2. The agricultural rare earth synergist according to claim 1, characterized in that: The trace elements include zinc, manganese, boron, magnesium and copper.

3. The agricultural rare earth synergist according to claim 1, characterized in that: The regulator is a pH regulator.

4. A method for preparing the agricultural rare earth synergist as claimed in claim 1, characterized in that: The steps include: (1) selecting a powdered raw material, wherein the raw material particle size is 40-60 mesh, and the solid rare earth has a pH value of 3 and a content of ≥45%; (2) adding 10-30 g of rare earth elements per mu of the raw material, a pH regulator, and a photosynthetic agent, stirring for 1-2 hours to obtain a solid rare earth mixture; (3) Add pure water to the dissolving tank and start stirring. After stirring for 20 minutes, add nitric acid or hydrochloric acid at a rate of 50 kg / min and stir for no less than 20 minutes until the pH value reaches 2; (4) adding the solid rare earth mixture obtained in step (2) to the aqueous solution treated in step (3) at a speed of 48-52 rpm, and stirring at 48-52 rpm; (5) After the liquid rare earth is allowed to stand for 4-8 hours, an agricultural rare earth synergist is obtained.

5. The method for preparing the agricultural rare earth synergist according to claim 4, characterized in that: The method also includes the following steps: allowing the produced agricultural rare earth synergist to stand for more than 4 hours to remove impurities.

6. An agricultural rare earth synergist, characterized in that: The product is prepared by the preparation method described in any of claims 4 to 5.

7. Use of the agricultural rare earth synergist as described in any of claims 1 to 3, or the agricultural rare earth synergist prepared by the method described in any of claims 4 to 5 in agriculture.