WO2018112868A1

WO2018112868A1 - Humic acid water-soluble fertilizer and preparation method therefor

Info

Publication number: WO2018112868A1
Application number: PCT/CN2016/111653
Authority: WO
Inventors: 王璐
Original assignee: 王璐
Priority date: 2016-12-23
Filing date: 2016-12-23
Publication date: 2018-06-28

Abstract

Provided are a humic acid water-soluble fertilizer and a preparation method therefor. The fertilizer comprises the following ingredients in parts by weight: 25-36 parts of humic acid, 11-20 parts of urea, 5-10 parts of dipotassium phosphate, 5-12 parts of ferrous sulfate, 3-8 parts of boric acid, 0.01-0.06 parts of an amino acid, 0.05-0.1 parts of a deep-sea fish oil, etc. The fertilizer uses humic acid as a carrier, and a variety of adjuvants are added; same has features such as fast nutrient absorption, a high fertilizer utilization rate, convenient operation, and avoiding certain elements from being fixed in soil; and provides a favorable guarantee for producing a green health food, relieving environmental pollution, and reducing farmers' production costs.

Description

Humic acid water-soluble fertilizer and preparation method thereof

[0001] The present invention relates to a novel humic acid-containing water-soluble fertilizer, which belongs to the technical field of agricultural fertilizers.

Background technique

[0002] In today's market economy, food safety has gradually become a key issue that the country urgently needs to solve. Over the years, due to long-term application of chemical fertilizers, insufficient organic fertilizers, imbalance of various nutrients, resulting in farmland ecological environment, soil physical and chemical properties And the soil microflora has been greatly damaged, which seriously affects the quality of agricultural products. Chemical fertilizer pollution has become a major public hazard in the world today. In China, with the continuous improvement of people's living standards and the basic problem of food and clothing, high-yield quality agricultural products and health foods have become an urgent need in current social and agricultural production. To this end, the Ministry of Agriculture called for a Green Food Work Conference in 1990 to promote the production of pollution-free healthy food. This meeting set off a green revolution in China's agriculture and food processing industry. The State Council's document on the issue of green food pointed out: "The green food (non-polluting food) has a profound impact on protecting the ecological environment, improving the quality of agricultural products, promoting the development of the food industry, improving human health, and increasing the export of agricultural products." The State Council clearly proposed to promote "ecological agriculture" in the ten major countermeasures of China's ecological environment protection. In order to develop ecological agriculture, the production of pollution-free "green food", the fertilization technology in agricultural production must be reformed, that is, the rational application of chemical fertilizers, the development of organic and inorganic application, and biological fertilizers should be strongly promoted and developed. As China joins the "World Trade Organization", and the next five-year plan puts forward higher requirements for China's environmental resource protection and people's living and health. A reduction in the use of chemical fertilizers and pesticides, and the development of bio-organic fertilizers have come. At present, in the agricultural development of western countries, chemical fertilizers are being treated by biological fertilizers, bio-organic fertilizers, and other new high-efficiency pollution-free, pollution-free green fertilizers. Replaced. In the current "world trade integration" process, China's agricultural products must compete with Western countries and other countries in the world for agricultural products. The primary premise is to promote the implementation of "green pollution-free" fertilizers and the "food" of crops. Green pollution-free fertilizers are promoted and implemented with great fanfare. This is not only the development direction of China's agriculture, but also the biggest and most urgent problem facing agricultural production after China's entry into the "World Trade."

technical problem The technical problem to be solved by the present invention is to provide a humic acid water-soluble fertilizer.

Problem solution

Technical solution

[0004] In order to solve the above technical problem, the technical solution adopted by the present invention is:

[0005] The humic acid water-soluble fertilizer provided by the present invention comprises the following parts by weight: 25-36 parts of humic acid, 11-20 parts of urea, 5-10 parts of dipotassium hydrogen phosphate, 5-12 parts of ferrous sulfate, 3-8 parts of boric acid, 0.01-0.0 6 parts of amino acid, 0.05-0.1 part of deep sea fish oil, 1-3 parts of polydimethylsiloxane, 3-7 parts of disodium edetate, and 50-60 parts of water.

[0006] For the above formulation, the present invention provides a preferred choice, 33 parts of humic acid, 18 parts of urea, 8 parts of dipotassium hydrogen phosphate, 9 parts of ferrous sulfate, 6 parts of boric acid, 0.03 parts of amino acid, 0.07 of deep sea fish oil Parts: 3 parts of polydimethylsiloxane, 5 parts of disodium edetate, and 57 parts of water.

Preferably, the amino acid is a polar amino acid. Further, the polar amino acid is selected from the group consisting of glycine, serine, threonine, cysteine, tyrosine, asparagine, glutamine, lysine, arginine, histidine, aspartame One or more of amino acid and glutamic acid.

The present invention provides an optimal combination of amino acids: The polar amino acid is a combination of serine, lysine, histidine, aspartic acid, and their weight ratio is 3:2:1:1.

[0009] In order to prepare the above water-soluble fertilizer, the present invention also provides a preparation process comprising the following steps: [0010] (1) taking half the weight of water in the formulation, raising the temperature to 60-80 ° C, dissolving the humic acid in Water; then urea, dipotassium hydrogen phosphate, ferrous sulfate, boric acid and polydimethylsiloxane are added, and the mixture is stirred for 0.5-2 hours to fully dissolve.

[0011] (2) taking the other half of the weight of the water in the formula, adding amino acid, deep sea fish oil, disodium edetate to the water, and stirring for 0.5-1 hours to dissolve it sufficiently.

(3) The aqueous solution in the step (2) is added to the aqueous solution of the step (1), and the temperature of the aqueous solution of the step (1) is maintained at 40 to 55 ° C, and stirred to sufficiently dissolve.

(4) The solution of the step (3) is passed through a spray dryer to obtain water-soluble fertilizer granules.

[0014] For ease of storage and transportation, the water-soluble fertilizer is preferably prepared in the form of solid granules. In order to make the solid granular fertilizer of the present invention have better water solubility, the present invention improves the conventional preparation process and provides a better preparation method, specifically: in the step (1), the stirring condition is 4000- 4500r/min, The solution temperature was maintained at 65-70 ° C and the agitation pressure was 1.5-2 standard atmospheres.

[0015] In the step (2), the stirring condition is 3000-3500 _r /min, the solution temperature is maintained at 55-60 ° C, and the stirring pressure is 1.5-2 standard atmospheric pressure.

[0016] The fertilizer granules prepared by the process of the present invention are very soluble in water, can be sprayed, or used in watering.

Advantageous effects of the invention

Beneficial effect

[0017] First, the invention uses humic acid as a carrier and adds various auxiliary agents, and has the characteristics of fast nutrient absorption, high fertilizer utilization rate, convenient operation, and avoidance of fixing certain elements by soil; for producing green healthy food and reducing Environmental pollution and reducing farmers' production costs provide favorable guarantees.

[0018] Secondly, the present invention utilizes the complexation of humic acid to prevent antagonism between elements, and also solves the problem that iron is easily oxidized and plants are not easily absorbed, so that each element promotes absorption and synergistic effect; Nitrogen, phosphate and potassium are promoted to cultivate soil fertility and promote crop root development.

[0019] Thirdly, it is widely used in food crops, cash crops, oil crops, flowers, etc., and has a wide range of crops and a wide range of use concentrations.

[0020] Fourth, the nutritional mix is reasonable, has a synergistic nutritional effect, can greatly reduce the use of chemical fertilizers, pesticides [0021] Fifth, economic, safe, convenient, and efficient.

[0022] Sixth: Adjusting the pH of the soil: Now the soil is applied to the fertilizer all year round, and the soil acidification is serious. The invention is microscopically alkaline and suitable for any soil use, and the long-term use of the acidic soil has the effect of regulating the acid-base balance.

BEST MODE FOR CARRYING OUT THE INVENTION

[0023] The humic acid water-soluble fertilizer provided in the embodiment includes the following parts by weight: 36 parts of humic acid, 20 parts of urea, 10 parts of dipotassium hydrogen phosphate, 12 parts of ferrous sulfate, 8 parts of boric acid, and 0.06 parts of amino acid. , 0.1 parts of deep sea fish oil, 3 parts of polydimethylsiloxane, 7 parts of disodium edetate, and 60 parts of water.

[0024] The amino acid is selected from the group consisting of serine, lysine, histidine, and aspartic acid, and their weight ratio is 3:2:1:1.

[0025] The preparation process comprises the following steps:

[0026] (1) taking half the weight of water in the formula, heating to 80 ° C, dissolving humic acid in water; then adding urine , potassium dihydrogen phosphate, ferrous sulfate, boric acid and polydimethylsiloxane, stirred for 2 hours to fully dissolve

[0027] (2) taking the other half of the weight of the water in the formula, adding the amino acid, deep sea fish oil, disodium edetate to the water, and stirring for 1 hour to dissolve it sufficiently.

(3) The aqueous solution in the step (2) is added to the aqueous solution of the step (1), and the temperature of the aqueous solution of the step (1) is maintained at 55 ° C, and stirred to sufficiently dissolve.

[0030] Example 2

[0031] The humic acid water-soluble fertilizer provided in the embodiment includes the following parts by weight: 25 parts of humic acid, 11 parts of urea, 5 parts of dipotassium hydrogen phosphate, 5 parts of ferrous sulfate, 3 parts of boric acid, 0.01 parts of amino acid. , 0.05 parts of deep sea fish oil, 1 part of polydimethylsiloxane, 3 parts of disodium edetate, and 50 parts of water.

[0032] The amino acid is a polar amino acid. A composition selected from the group consisting of serine, lysine, histidine, and aspartic acid, and their weight ratio is 3:2:1.

[0033] The preparation of the above water-soluble fertilizer comprises the following steps:

[0034] (1) taking half the weight of water in the formula, heating to 60 ° C, dissolving humic acid in water; then adding urea, dipotassium hydrogen phosphate, ferrous sulfate, boric acid and polydimethylsiloxane, Stir for 0.5 吋 to dissolve it sufficiently.

[0035] (2) taking the other half of the weight of the water in the formulation, adding amino acid, deep sea fish oil, disodium edetate to the water, and stirring for 0.5 hours to fully dissolve.

(3) The aqueous solution in the step (2) is added to the aqueous solution of the step (1), and the temperature of the aqueous solution of the step (1) is maintained at 40 ° C, and stirred to sufficiently dissolve.

Embodiment 3

[0039] The humic acid water-soluble fertilizer provided in the embodiment includes the following parts by weight: 33 parts of humic acid, 18 parts of urea, 8 parts of dipotassium hydrogen phosphate, 9 parts of ferrous sulfate, 6 parts of boric acid, 0.03 parts of amino acid. 0.07 parts of deep sea fish oil, 3 parts of polydimethylsiloxane, 5 parts of disodium edetate, and 57 parts of water.

[0040] The amino acid is a polar amino acid. The polar amino acid is selected from the group consisting of serine, lysine, histidine, aspartic acid, and their weight ratio is 3:2:1:1. [0041] The preparation of the above water-soluble fertilizer comprises the following steps:

[0042] (1) taking half the weight of water in the formula, heating to 72 ° C, dissolving humic acid in water; then adding urea, dipotassium hydrogen phosphate, ferrous sulfate, boric acid and polydimethylsiloxane, Stir for 1.5 hours to fully dissolve.

[0043] (2) taking the other half of the weight of the water in the formula, adding amino acid, deep sea fish oil, disodium edetate to the water, and stirring for 1 hour to dissolve it sufficiently.

(3) The aqueous solution in the step (2) is added to the aqueous solution of the step (1), and the temperature of the aqueous solution of the step (1) is maintained at 48 ° C, and stirred to sufficiently dissolve.

[0046] In the step (1), the stirring condition was 4500 r/min, the solution temperature was maintained at 67 ° C, and the stirring pressure was 2 standard atmospheric pressures.

[0047] In the step (2), the stirring condition was 3000 r/min, the solution temperature was maintained at 60 ° C, and the stirring pressure was 1.5 standard atmospheric pressure.

[0048] The fertilization effect of the water-soluble fertilizer of the present invention is illustrated by experiments below:

[0049] (1) Test site and soil conditions: Xifu Town, Chengyang District, Qingdao City, Shandong Province, the tested soil is brown loam, medium fertility, and the former crop is corn.

[0050] (2) Test crops and varieties:

[0051] The test crop is cabbage, and the variety is modified Qingza No. 3.

[0052] (3) Test fertilizer:

The water-soluble fertilizer in Example 1 of the present invention.

(4) Test method:

[0055] This experiment has 3 zones:

[0056] Conventional group: conventional fertilization

[0057] Control group: conventional fertilization + equal amount of clear water (spraying).

Experimental group 1: Conventional fertilization + water-soluble fertilizer (spraying) in Example 1 of the present invention.

Experimental group 2: The conventional fertilization in the experimental group was changed to the water-soluble fertilizer in Inventive Example 1, and other conditions were the same.

(5) Test results: [0061] The test yields were carried out, and the plant height, stem diameter and plant weight of the cabbage were investigated. The results are shown in Table 1.

Table 1: Table of Main Economic Characters of Differently Handled Cabbage

[] [Table 1]

[0063] As can be seen from the above results, the water-soluble fertilizer of the present invention has a remarkable effect on the yield increase of vegetables.

Claims

Claim

[Claim 1] A humic acid water-soluble fertilizer characterized by comprising the following parts by weight: 25-36 parts of humic acid, 11-20 parts of urea, 5-10 parts of dipotassium hydrogen phosphate, ferrous sulfate 5 -12 parts, 3-8 parts of boric acid, 0.01-0.06 parts of amino acid, 0.05-0.1 part of deep sea fish oil, 1-3 parts of polydimethylsiloxane, 3-7 parts of disodium edetate, water 50- 60 copies.

[Claim 2] The water-soluble fertilizer according to claim 1, comprising the following parts by weight: 33 parts of humic acid, 18 parts of urea, 8 parts of dipotassium hydrogen phosphate, 9 parts of ferrous sulfate, boric acid 6 parts, 0.03 parts of amino acid, 0.07 parts of deep sea fish oil, 3 parts of polydimethylsiloxane, 5 parts of disodium edetate, and 57 parts of water.

[Claim 3] The water-soluble fertilizer according to claim 1 or 2, wherein the amino acid is a polar amino acid.

[Claim 4] The water-soluble fertilizer according to claim 3, wherein the polar amino acid is selected from the group consisting of glycine, serine, threonine, cysteine, tyrosine, asparagine, and glutamine. One or more of amide, lysine, arginine, histidine, aspartic acid, and glutamic acid.

[Claim 5] The water-soluble fertilizer according to claim 4, wherein the polar amino acid is a composition of serine, lysine, histidine, aspartic acid, and their weight ratio is 3. :2:1 :1.

[Claim 6] The method for preparing a water-soluble fertilizer according to any of the preceding claims, comprising the steps of: (1) taking half of the weight of water in the formulation, raising the temperature to 60-80 ° C, and humic acid Dissolved in water; (1) then add urea, dipotassium hydrogen phosphate, ferrous sulfate, boric acid and polydimethylsiloxane, stir 0.5-2 吋 to make it fully soluble; (2) take the other half weight of the formula Water, add amino acid, deep sea fish oil, disodium edetate to water, stir 0.5-1 吋 to dissolve it fully; (3) Add the aqueous solution in step (2) to the step

In the aqueous solution of (1), the temperature of the aqueous solution of the step (1) is maintained at 40 to 55 ° C, and the mixture is sufficiently dissolved by stirring; (4) The solution of the step (3) is passed through a spray dryer to obtain water-soluble fertilizer particles.

[Claim 7] The method according to claim 6, wherein in the step (1), the stirring condition is 4000-4500 r/min, the solution temperature is maintained at 65-70 ° C, and the stirring pressure is 1.5-2. Standard Atmospheric pressure.

[Claim 8] The method according to claim 6, wherein in the step (2), the stirring condition is 3000-3500 r/min, the solution temperature is maintained at 55-60 ° C, and the stirring pressure is 1.5-2. Standard atmospheric pressure.