A kind of water-soluble fertilizer containing humic acid and preparation method thereof

Abstract

The invention relates to the technical field of water-soluble fertilizer preparation, specifically a water-soluble fertilizer containing humic acid and a preparation method thereof. A water-soluble fertilizer containing humic acid comprises the following raw materials in parts by weight: 60 parts of urea, 800 parts of ammonium sulfate, 30 parts of monoammonium phosphate, 40 parts of potassium sulfate, 60 parts of potassium humate and 10 parts of feldspar ore powder. The water-soluble fertilizer containing humic acid prepared by the preparation method of the present invention has good water solubility, enhanced fertility and high fertilizer efficiency. It can increase the aggregate structure of the soil, increase the beneficial microbial flora, improve the soil buffering capacity, balance acid and alkali, retain water and fertilizer, and provide a good growth environment for crops. At the same time, it can increase root vitality, improve the absorption capacity of crops, increase stress resistance, improve crop quality, and increase yield.

Description

Technical Field

[0001] The invention relates to the technical field of water-soluble fertilizer preparation, in particular to a water-soluble fertilizer containing humic acid and a preparation method thereof. Background Art

[0002] Humic acid water-soluble fertilizer is a water-soluble fertilizer containing humic acid and a large number of elements. It has the functions of improving soil fertility, promoting crop growth, and enhancing crop resistance. Humic acid water-soluble fertilizer can improve soil fertility, promote crop growth and resistance, improve soil pH, reduce the effects of salinization and acidification, improve crop quality and taste, and protect the ecological environment. Reasonable use can increase crop yield and quality, increase farmers' income, and promote sustainable agricultural development.

[0003] The standard "NY 1106-2010 Humic Acid Water-soluble Fertilizer" stipulates the technical requirements, test methods, inspection rules, labeling, packaging, transportation and storage of humic acid water-soluble fertilizers (macro-element type) and humic acid water-soluble fertilizers (trace element type). However, many existing humic acid water-soluble fertilizers have poor water solubility, low fertility and slow fertilizer effect after dissolution. Summary of the invention

[0004] Based on the above background technology, the present invention provides a water-soluble fertilizer containing humic acid and a preparation method thereof.

[0005] A water-soluble fertilizer containing humic acid comprises the following raw materials in parts by weight: 60 parts of urea, 800 parts of ammonium sulfate, 30 parts of monoammonium phosphate, 40 parts of potassium sulfate, 60 parts of potassium humate and 10 parts of feldspar ore powder.

[0006] A method for preparing a water-soluble fertilizer containing humic acid comprises the following steps:

[0007] S1. Put urea, ammonium sulfate, monoammonium phosphate and potassium sulfate into the processing equipment, mix them evenly and crush them;

[0008] S2, putting potassium humate and feldspar ore powder into the processing equipment, mixing them evenly with urea, ammonium sulfate, monoammonium phosphate and potassium sulfate, and crushing them into fertilizer powder;

[0009] S3, putting the fertilizer powder into a granulator to make fertilizer granules;

[0010] S4, sieving the fertilizer granules to remove fertilizer powder mixed therein;

[0011] S5. Measuring and packaging the screened fertilizer particles.

[0012] In summary, the present invention has the following beneficial effects:

[0013] The humic acid-containing water-soluble fertilizer prepared by the preparation method of the present invention has good water solubility, enhanced fertility and high fertilizer efficiency. It can increase the aggregate structure of the soil, increase the beneficial microbial flora, improve the soil buffering capacity, balance acid and alkali, retain water and fertilizer, and provide a good growth environment for crops. At the same time, it can increase root vitality, improve the absorption capacity of crops, increase stress resistance, improve the quality of crops, and increase yield. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described in combination with the embodiments of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0015] A water-soluble fertilizer containing humic acid comprises the following raw materials in parts by weight: 60 parts of urea, 800 parts of ammonium sulfate, 30 parts of monoammonium phosphate, 40 parts of potassium sulfate, 60 parts of potassium humate and 10 parts of feldspar ore powder.

[0016] Urea, also known as carbamide, has a chemical formula of CH4N2O or CO(NH2)2. It is a white crystal, tasteless and odorless, easily soluble in water, ethanol and benzene, and slightly soluble in ether and chloroform. Urea is one of the simplest organic compounds and is the main nitrogen-containing end product of protein metabolism and decomposition in mammals and some fish. It can be used as fertilizer, animal feed, explosives, glue stabilizer and chemical raw material. Because this substance is contained in human urine, it is named urea. As a neutral fertilizer, urea is suitable for various soils and plants. It is easy to store, easy to use, and has little destructive effect on the soil. It is a chemical nitrogen fertilizer with a large usage. Urea contains 46% nitrogen (N), which is the highest nitrogen content among solid nitrogen fertilizers. Urea is a high-concentration nitrogen fertilizer, a neutral quick-acting fertilizer, and can also be used to produce a variety of compound fertilizers. No harmful substances remain in the soil, and long-term application has no adverse effects. Urea is suitable for base fertilizer and topdressing, and is sometimes used as seed fertilizer. Urea (nitrogen fertilizer) can promote cell division and growth, making branches and leaves grow luxuriantly. Urea also has the following applications in agriculture: regulating the amount of flowers, thinning flowers and fruits, rice seed production, pest control, urea iron fertilizer, etc.

[0017] Ammonium sulfate is an inorganic substance with the chemical formula (NH4)2SO4. It is colorless crystals or white particles and has no odor. It decomposes above 280℃. Solubility in water: 70.6g at 0℃, 103.8g at 100℃. It is insoluble in ethanol and acetone. The pH of 0.1mol / L aqueous solution is 5.5. Ammonium sulfate is mainly used as a fertilizer and is suitable for various soils and crops. Ammonium sulfate is an excellent nitrogen fertilizer (commonly known as fertilizer powder) suitable for general soils and crops. It can make branches and leaves grow vigorously, improve fruit quality and yield, and enhance the resistance of crops to disasters. It can be used as base fertilizer, topdressing fertilizer and seed fertilizer.

[0018] Monoammonium phosphate, also known as diammonium phosphate, is an inorganic compound with a chemical formula of NH4H2PO4. It can be subdivided into compound fertilizer, fire extinguisher, fermentation agent, nutrient enhancer, etc. according to its use. Monoammonium phosphate for compound fertilizer is a compound fertilizer containing two main nutrients, nitrogen and phosphorus. It is usually white or light gray granules, has good water solubility, and can be quickly dissolved by water in the soil, thus providing plants with essential nutrients. The nitrogen and phosphorus provided by monoammonium phosphate are two elements necessary for crop growth and development. Nitrogen is a component of plant protein, chlorophyll and other important organic molecules, which helps promote plant leaf growth and enhance photosynthesis; phosphorus participates in energy transfer, cell division and root development, and is an important element for crop flowering and fruiting. Monoammonium phosphate can improve the physical and chemical properties of the soil. Phosphate ions combine with calcium, magnesium and other ions in the soil to form insoluble phosphate minerals, reduce phosphorus loss and improve phosphorus utilization. At the same time, ammonium ions are converted into nitrates in the soil, which also helps to improve soil fertility. Adequate phosphorus supply can enhance crops' resistance to diseases and pests, improve their resistance to drought and cold, and reduce the adverse effects of environmental stress on crop growth.

[0019] Potassium sulfate is an inorganic salt with the chemical formula K2SO4, and is a white crystalline powder. Potassium sulfate is a chemically neutral and physically acidic fertilizer. Its main components are potassium and sulfur, which are the main elements required for plant growth and development. It can significantly increase the content of various solids such as protein, amino acids, and vitamin A in fruits, and improve the yield and quality of fruits. Agricultural potassium sulfate is mostly light yellow in appearance. Potassium sulfate has low hygroscopicity, is not easy to agglomerate, has good physical properties, and is easy to apply. It is a good water-soluble potassium fertilizer and the main raw material for making chlorine-free nitrogen, phosphorus, and potassium ternary compound fertilizers.

[0020] Potassium humate is an organic compound with the chemical formula C9H8K2O4. It is a macromolecular organic substance widely found in nature and is widely used in agriculture, forestry, animal husbandry, petroleum, chemical industry, building materials, medicine, health, environmental protection and other fields. Potassium humate is a highly efficient organic potassium fertilizer because the humic acid in it is a biologically active agent that can increase the content of available potassium in the soil, reduce the loss and fixation of potassium, increase the absorption and utilization rate of potassium by crops, and also has the functions of improving soil, promoting crop growth, improving crop resistance, improving crop quality, and protecting the agricultural ecological environment; it can be made into a highly efficient and multifunctional compound fertilizer after being mixed with urea, phosphate fertilizer, potassium fertilizer, trace elements, etc. Potassium humate is easily soluble in water and is an organic macromolecular compound containing a large number of intricate functional groups. It is more resistant to microbial decomposition. Its slow decomposition is the best of all organic solid fertilizers. It has strong adsorption, exchange, complexation and chelation capabilities. It is the best indicator of fertilizer retention and is known as an ecological fertilizer. It can provide slow-release nitrogen, phosphorus and potassium organic fertilizers. It can also provide macro, medium and trace elements required by various plants, as well as organic matter including humic acid, humic acid, humic amino acids, carbohydrates, etc. It is a high-quality potash fertilizer and organic raw material in the production of organic compound fertilizers.

[0021] Feldspar powder is a powder of feldspar minerals. Feldspar is an aluminum silicate mineral of alkali metals and alkaline earth metals such as potassium, sodium, calcium and barium. Its main chemical components are SiO2, Al2O3, K2O, Fe2O3, Na2O, CaO, and it is an important rock-forming mineral. It is mainly used to make ceramics, enamel, glass raw materials, abrasives, etc., and can also make potash fertilizers. The main uses of fertilizer feldspar powder in agriculture include: Soil improvement: By increasing the mineral content in the soil, improving the physical properties of the soil, such as improving soil aeration and water retention, optimizing soil structure, and creating a better growth environment for plant roots. Nutrient supply: The mineral elements such as potassium, calcium, and magnesium contained in feldspar powder are essential nutrients for plant growth. These elements are gradually released in the soil, providing plants with lasting nutrient support and promoting healthy plant growth. Regulating soil pH: Feldspar powder has a certain regulating effect on soil pH, which helps to maintain the soil within a suitable acid-base range, thereby better meeting the growth needs of plants. Improve crop quality and yield: By improving the soil environment and providing nutrients, feldspar powder fertilizer helps to enhance the stress resistance of crops (such as drought resistance, disease resistance, etc.), thereby promoting the healthy growth of crops and improving crop yield and quality.

[0022] A method for preparing a water-soluble fertilizer containing humic acid comprises the following steps:

[0023] S1. Put urea, ammonium sulfate, monoammonium phosphate and potassium sulfate into the processing equipment, mix them evenly and crush them;

[0024] S2, putting potassium humate and feldspar ore powder into the processing equipment, mixing them evenly with urea, ammonium sulfate, monoammonium phosphate and potassium sulfate, and crushing them into fertilizer powder;

[0025] S3, putting the fertilizer powder into a granulator to make fertilizer granules;

[0026] S4, sieving the fertilizer granules to remove fertilizer powder mixed therein;

[0027] S5. Measuring and packaging the screened fertilizer particles.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A water-soluble fertilizer containing humic acid, characterized in that: The invention comprises the following raw materials in parts by weight: 60 parts of urea, 800 parts of ammonium sulfate, 30 parts of monoammonium phosphate, 40 parts of potassium sulfate, 60 parts of potassium humate and 10 parts of feldspar ore powder.

2. A method for preparing a water-soluble fertilizer containing humic acid, characterized in that: The following steps are involved: S1. Put urea, ammonium sulfate, monoammonium phosphate and potassium sulfate into the processing equipment, mix them evenly and crush them; S2, putting potassium humate and feldspar ore powder into the processing equipment, mixing them evenly with urea, ammonium sulfate, monoammonium phosphate and potassium sulfate, and crushing them into fertilizer powder; S3, putting the fertilizer powder into a granulator to make fertilizer granules; S4, sieving the fertilizer granules to remove fertilizer powder mixed therein; S5. Measuring and packaging the screened fertilizer particles.