CN111410573A - Preparation method of foliar fertilizer - Google Patents
Preparation method of foliar fertilizer Download PDFInfo
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- CN111410573A CN111410573A CN202010232717.4A CN202010232717A CN111410573A CN 111410573 A CN111410573 A CN 111410573A CN 202010232717 A CN202010232717 A CN 202010232717A CN 111410573 A CN111410573 A CN 111410573A
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- urea
- humic acid
- ferrous sulfate
- black
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
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- Organic Chemistry (AREA)
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Abstract
The invention discloses a preparation method of a foliar fertilizer. The invention selects weathered coal and edible alkali to extract black humic acid by a cold leaching method, and the extract contains rich nitrogen, phosphorus, potassium and other trace elements besides the black humic acid. The urea can comprehensively improve the fertility, the ferrous sulfate can supplement iron elements for plants, and meanwhile, the ferrous sulfate is weakly acidic, so that the acid-base balance in the plants can be adjusted, and particularly, the urea has a good effect on the plants on the saline-alkali soil. The leaf fertilizer preparation method disclosed by the invention has the advantages of simple steps, low cost rise, high yield, convenience for large-scale market production and wide application in the technical field of chemical fertilizers.
Description
Technical Field
The invention relates to the field of fertilizer preparation, in particular to a preparation method of a foliar fertilizer.
Background
The foliar fertilizer is a fertilizer which aims at being absorbed by the leaf surface and directly applies nutrients required by plants to the leaf surface. The application of foliar fertilisers is a form of supplementation to the plants to absorb nutrients. When the plant is in the later growth stage, the activity of the root system is reduced, the fertilizer absorption capacity is insufficient, or the soil is saline-alkali soil, and the plant cannot absorb the nutrients from the root system well, the foliar fertilizer is an important source for the plant to absorb the nutrients; the fertilizer absorbed by the leaf surface can rapidly enter the plant body, the fertilizing speed is high, and the effect is good; the foliar fertilizer can also reduce the pollution of the fertilizer to the soil.
Disclosure of Invention
The invention aims to provide a preparation method of a foliar fertilizer, which comprises the following steps:
s1, dissolving weathered coal in water, adding edible alkali, stirring, standing for precipitation, and taking a liquid phase to obtain a humic acid black suspension;
s2, heating the black humic acid suspension obtained in the step S1 to 60-80 ℃, adding urea, and stirring until the urea is completely dissolved to obtain a mixed solution of the black humic acid and the urea;
s3, cooling the mixed solution of the black humic acid and the urea obtained in the step S2 to normal temperature, adding ferrous sulfate, uniformly stirring and bottling;
the weight portion of the weathered coal and the water in S1 is 10:7-9, the weight portion of the black humic acid suspension and the urea in S2 is 1:0.8-1, and the adding amount of the ferrous sulfate in S3 is 0.02-0.04 per mill of the total solution weight.
As an improvement, the particle size of the weathered coal is less than 2 mm.
As an improvement, the standing and precipitating time in S1 is 3-5 days.
As an improvement, the method for adding the ferrous sulfate in S3 is to prepare the ferrous sulfate into a ferrous sulfate solution with the mass fraction of 30-50%, and then uniformly stir the ferrous sulfate solution and the mixed solution of the black humic acid and the urea obtained in S2.
The invention has the beneficial effects that:
the invention selects weathered coal and edible alkali to extract black humic acid by a cold soaking method, and the extract contains rich nitrogen, phosphorus, potassium and other microelements and organic matters beneficial to plant growth besides the black humic acid. The urea can comprehensively improve the fertility, the ferrous sulfate can supplement iron elements for plants, and meanwhile, the ferrous sulfate is weakly acidic, so that the acid-base balance in the plants can be adjusted, and particularly, the urea has a good effect on the plants on the saline-alkali soil. The leaf fertilizer preparation method disclosed by the invention has the advantages of simple steps, low cost increase, high yield and convenience for large-scale market production.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Example 1
The embodiment discloses a preparation method of a foliar fertilizer, which comprises the following steps:
s1, adding 10kg of weathered coal and 0.8kg of edible alkali into 350 liters of water, stirring for 30 minutes, standing and precipitating for 5 days, and taking a liquid phase to obtain a humic acid black suspension.
S2, heating the black humic acid suspension obtained in the step S1 to 80 ℃, adding urea, stirring until the urea is completely dissolved to obtain a mixed solution of the black humic acid and the urea, wherein the weight ratio of the added urea to the black humic acid solution is 1: 1.
S3, cooling the mixed solution of the black humic acid and the urea obtained in the step S2 to normal temperature, adding a ferrous sulfate solution, uniformly stirring and bottling; adding 20 ml of ferrous sulfate solution with the mass portion of 30% into every 22 liters of the mixed solution of the black humic acid and the urea.
The particle size of the weathered coal selected in this example was 1 mm. The foliar fertilizer prepared by the embodiment is 200 times liquid, wherein the ratio of the humic acid black to the ferrous sulfate is large, and the humic acid black and the ferrous sulfate are both acidic, so that the acid-base balance in the plant body of the saline-alkali soil can be fully adjusted, a good internal environment is created for the growth of the plant, and the absorption effect of urea and the application effect of the foliar fertilizer are improved.
Example 2
The embodiment discloses a preparation method of a foliar fertilizer, which comprises the following steps:
s1, adding 10kg of weathered coal and 1kg of edible alkali into 350 liters of water, stirring for 30 minutes, standing and precipitating for 3 days, and taking a liquid phase to obtain a humic acid black suspension.
S2, heating the black humic acid suspension obtained in the step S1 to 60 ℃, adding urea, stirring until the urea is completely dissolved to obtain a mixed solution of the black humic acid and the urea, wherein the weight ratio of the added urea to the black humic acid solution is 1: 0.8.
S3, cooling the mixed solution of the black humic acid and the urea obtained in the step S2 to normal temperature, adding a ferrous sulfate solution, uniformly stirring and bottling; adding 20 ml of ferrous sulfate solution with the mass part of 50% into every 22 liters of the mixed solution of the black humic acid and the urea.
The particle size of the weathered coal selected in this example was 1.5 mm.
Example 3
This example is a verification example of the present invention, and the experiment of this example was carried out in the inner Mongolia Bayankee region. In the embodiment, two adjacent saline-alkali soil are selected for planting sunflower, the leaf fertilizer provided in the embodiment 1 is selected as an experimental group, the leaf fertilizer in the embodiment 1 is diluted by 200 times by adding water, and the leaf fertilizer is uniformly sprayed on the leaf surface of the sunflower; the control group had no fertilizer applied.
The results of the experiments are shown in the following table:
TABLE 1 sunflower growth status and yield comparison
Based on the table, the foliar fertilizer provided by the invention can obviously improve the growth effect of plants, promote the growth of the plants and increase the yield, and has obvious effects on improving the crop yield and improving the living standard of farmers.
While specific embodiments of, and examples for, the invention are described in detail, these are by way of illustration only, and any equivalent modifications or alterations to this invention would be apparent to those skilled in the art and are intended to be included within the scope of this invention. Accordingly, it is intended that all equivalent alterations and modifications be included within the scope of the invention, without departing from the spirit and scope of the invention.
Claims (4)
1. The preparation method of the foliar fertilizer is characterized by comprising the following steps:
s1, dissolving weathered coal in water, adding edible alkali, stirring, standing for precipitation, and taking a liquid phase to obtain a humic acid black suspension;
s2, heating the black humic acid suspension obtained in the step S1 to 60-80 ℃, adding urea, and stirring until the urea is completely dissolved to obtain a mixed solution of the black humic acid and the urea;
s3, cooling the mixed solution of the black humic acid and the urea obtained in the step S2 to normal temperature, adding ferrous sulfate, uniformly stirring and bottling;
the weight portion of the weathered coal and the water in S1 is 10:7-9, the weight portion of the black humic acid suspension and the urea in S2 is 1:0.8-1, and the adding amount of the ferrous sulfate in S3 is 0.02-0.04 per mill of the total solution weight.
2. The preparation method of the foliar fertilizer as claimed in claim 1, wherein the particle size of the weathered coal is less than 2 mm.
3. The preparation method of the foliar fertilizer as claimed in claim 1, wherein the time of the standing precipitation in the S1 is 3 to 5 days.
4. The preparation method of the foliar fertilizer as claimed in claim 1, wherein the ferrous sulfate is added in the step of S3 by preparing the ferrous sulfate into a ferrous sulfate solution with a mass fraction of 30-50%, and then uniformly stirring the ferrous sulfate solution and the mixed solution of the humic acid black and the urea obtained in the step of S2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010232717.4A CN111410573A (en) | 2020-03-28 | 2020-03-28 | Preparation method of foliar fertilizer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010232717.4A CN111410573A (en) | 2020-03-28 | 2020-03-28 | Preparation method of foliar fertilizer |
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| CN111410573A true CN111410573A (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010232717.4A Pending CN111410573A (en) | 2020-03-28 | 2020-03-28 | Preparation method of foliar fertilizer |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1169975A (en) * | 1996-07-08 | 1998-01-14 | 中国科学院山西煤炭化学研究所 | Preparation of complex of humic acids and urea |
| CN1401616A (en) * | 2002-07-24 | 2003-03-12 | 通辽绿阳科技开发有限公司 | Liquid multi-nutrient element humic acid fertilizer and preparing process thereof |
| CN102249814A (en) * | 2011-05-17 | 2011-11-23 | 谭钧 | Preparation method of liquid fertilizer with humic acid-urea complex as matrix |
| CN103964945A (en) * | 2014-04-19 | 2014-08-06 | 中农舜天生态肥业有限公司 | Method for preparing water-soluble fertilizer containing humic acid |
| CN106146178A (en) * | 2016-08-10 | 2016-11-23 | 云南尚呈生物科技有限公司 | A kind of preparation method of mineral sources humic acid urea |
| CN106242885A (en) * | 2016-07-25 | 2016-12-21 | 成都市新都化工股份有限公司 | A kind of preparation method containing humic acid liquid fertilizer |
| CN107445748A (en) * | 2016-05-31 | 2017-12-08 | 辽宁东萌肥业科技有限公司 | The quick-acting micro- fertile preparation methods of state raw coal base humic acid chelating |
-
2020
- 2020-03-28 CN CN202010232717.4A patent/CN111410573A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1169975A (en) * | 1996-07-08 | 1998-01-14 | 中国科学院山西煤炭化学研究所 | Preparation of complex of humic acids and urea |
| CN1401616A (en) * | 2002-07-24 | 2003-03-12 | 通辽绿阳科技开发有限公司 | Liquid multi-nutrient element humic acid fertilizer and preparing process thereof |
| CN102249814A (en) * | 2011-05-17 | 2011-11-23 | 谭钧 | Preparation method of liquid fertilizer with humic acid-urea complex as matrix |
| CN103964945A (en) * | 2014-04-19 | 2014-08-06 | 中农舜天生态肥业有限公司 | Method for preparing water-soluble fertilizer containing humic acid |
| CN107445748A (en) * | 2016-05-31 | 2017-12-08 | 辽宁东萌肥业科技有限公司 | The quick-acting micro- fertile preparation methods of state raw coal base humic acid chelating |
| CN106242885A (en) * | 2016-07-25 | 2016-12-21 | 成都市新都化工股份有限公司 | A kind of preparation method containing humic acid liquid fertilizer |
| CN106146178A (en) * | 2016-08-10 | 2016-11-23 | 云南尚呈生物科技有限公司 | A kind of preparation method of mineral sources humic acid urea |
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