The invention discloses a multifunctional liquid organic and inorganic fertilizer and application thereof, and relates to the field of fertilizer preparation. The multifunctional liquid organic and inorganic fertilizer is prepared from the following components in parts by mass: 60 to 78 parts of liquid organic fertilizer, 20 to 40 parts of inorganic fertilizer, 0 to 2 parts of chelating agent, and 0 to 2 parts of growth regulator, wherein the inorganic fertilizer comprises a high-nitrogen inorganic fertilizer, a high-phosphor inorganic fertilizer and a high-potassium fertilizer; the components are uniformly mixed to prepare the liquid organic and inorganic fertilizer. The liquid organic and inorganic fertilizer has the characteristics that the nutrient content is high, the compounding of organic and inorganic nutrients is reasonable, the state of solution or suspension is relatively stable, the liquid organic and inorganic fertilizer can be used as a water fertilizer to apply, the different requirements of crops in different growth periods are met, and the output of crops is increased.

Multifunctional liquid organic and inorganic fertilizer and application thereof

The invention relates to an amino acid composite liquid fertilizer special for calcareous soil. A liquid fertilizer mother solution is a mixed solution of concentrated biogas slurry, a welsh onion extract and an amino acid stock solution; the macroelement is at least one of urea, ammonium polyphosphate, urea phosphate, potassium dihydrogen phosphate, dipotassium hydrogen phosphate and potassium sulfate; the medium element comes from amino acid chelated calcium, amino acid chelated magnesium, and magnesium sulfate; the microelement is at least one of EDDHA-Fe, EDTA-Mn, EDTA-Cu, EDTA-Zn, zinc sulfate, sodium octoborate and boric acid; and also EDTA-Si and a rare earth liquid fertilizer are added. According to the invention, the concentrated biogas slurry and amino acid stock solution compose a mixed solution in a ratio of 1:4, then according to the nutritional requirement law of crops, a specific nutritional material formula is selected, the raw materials are added in a specific adding order and are mixed evenly so as to obtain the fertilizer product. The amino acid composite liquid fertilizer provided by the invention has the advantages of balanced nutrition, comprehensive functions, good water solubility and moderate acidity, and is especially suitable for large area popularization and application in northern calcareous soil.

Amino acid composite liquid fertilizer special for calcareous soil and preparation method thereof

Belonging to the field of water-soluble fertilizer processing, the invention discloses a high efficiency and environment-friendly water-soluble fertilizer and a preparation method thereof. According to the method, humic acid complexation and element chelation are carried out step by step to prepare the water-soluble fertilizer, also full stirring and precipitation are combined, precipitation is conducive to removing impurities that interact to cause precipitate, the added humic acid is used for complexation of heavy metals to reduce the heavy metal content and heavy metal pollution of the water-soluble fertilizer, thus being more conducive to improving the safety performance of the water-soluble fertilizer, and metal element chelation is conducive to improving the stability of the water-soluble fertilizer, ensuring the use efficiency and stability of the water-soluble fertilizer, and prolonging the storage period. The combination of the three solves the disadvantages of a lot of impurities, uneven color and the like, and poor solubility of products in the prior art.

High efficiency and environment-friendly water-soluble fertilizer and preparation method thereof

The invention provides a fulvic acid-containing large-medium-trace element water-soluble fertilizer and a preparation method thereof, wherein the fulvic acid-containing large-medium-trace element water-soluble fertilizer comprises, by mass, 50-90% of fulvic acid, and 10-50% of water-soluble elements, wherein the water-soluble elements comprise large water-soluble elements of potassium dihydrogen phosphate and urea, medium water-soluble water-soluble elements of ammonium calcium nitrate and magnesium sulfate, trace water-soluble elements of zinc sulfate, manganese sulfate, ferrous sulfate, copper sulfate and ammonium tetramolybdate, alginic acid and a chelating agent. Compared with the preparation method in the prior art, the preparation method of the present invention has the following characteristics that fulvic acid is produced by using local straw, rape, corn stalk herb waste as raw materials, and a variety of large-medium-trace elements capable of improving the absorption rate of crops are added, such that the fulvic acid-containing large-medium-trace element water-soluble fertilizer is prepared, the environment is improved, the cost of the fulvic acid water-soluble fertilizeris reduced, the benefits of enterprises are increased, and the competitiveness of enterprises is enhanced.

Fulvic acid-containing large-medium-trace element water-soluble fertilizer and preparation method thereof

The invention discloses a production process of water-soluble humic acid. Pig manure biogas slurry and mineral humic acid are taken as main raw materials; the production process comprises the following steps: (1) strong base and the pig manure biogas slurry are mixed in the ratio being 1g:(100 mL-120 mL) and heated to be boiled; (2) the mineral humic acid and the mixed liquid are mixed in the ratio being 1g:(2 mL-4 mL), heated and stirred; (3) the reaction temperature is controlled at 90-95 DEG C and kept for 3-4 h, and then the temperature is decreased to 80-85 DEG C and kept for 2-3 h again.The production process has the benefits as follows: the pig manure biogas slurry and the mineral humic acid are taken as the main raw materials and are organically combined, the water-soluble humic acid which is easily absorbed and utilized by plants and can effectively improve soil is produced, the phenomena of random drainage and placement of biogas slurry of a large pig farm are eradicated, and the problems that the mineral humic acid cannot effectively improve soil and cannot be absorbed and utilized by crops are solved.

Production process of water-soluble humic acid

The invention discloses a method for using biogas slurry to prepare a liquid manure containing humic acid. The preparing method of the liquid manure containing the humic acid comprises the steps of uniformly mixing potassium nitrate, potassium fulvic acid, ferrous sulfate, borax, diethyl aminoethyl hexanoate and naphthaleneacetic acid sodium salt in proportion to obtain a base fertilizer containing the humic acid and major elements, uniformly mixing the base fertilizer, the biogas slurry, a chelating agent and a stabilizer in proportion, continuously heating and stirring the mixture to obtain a black viscous liquid manure, cooling the liquid manure and uniformly mixing the liquid manure with diammonium hydrogen phosphate, ammonium nitrate phosphate, and amino acid to obtain the liquid manure containing the humic acid. The liquid manure containing humic acid developed from the method can not only achieve full amount of use of the biogas slurry, and can also promote an additional value of the biogas slurry; meanwhile, the prepared liquid manure product is good in quality, and is high in content of the humic acid, content of nitrogen phosphorous and content of potassium; in addition, the liquid manure containing humic acid developed from the method has the advantages that the processing technology is simple in procedures and efficient.

Meng Haibo

Papers

Method for using biogas slurry to prepare liquid manure containing humic acid