CN107445684A - Micro- fertilizer of R type multifunctional liquids containing organic active substance and preparation method thereof - Google Patents

Abstract

The invention discloses a kind of micro- fertilizer of R type multifunctional liquids containing organic active substance and preparation method thereof, its raw materials by weight portion includes 190~230 parts of humic acid potassium, 50~70 parts of potassium dihydrogen phosphate, 20~40 parts of potassium sulfate, 60~100 parts of potassium nitrate, 4~6 parts of boric acid, 170~210 parts of APP, 25~45 parts of urea ammonium nitrate, 20~30 parts of NMF and 700~900 parts of water than meter.50 70% water is first added first into reactor, then adds potassium humate stirring and dissolving, adds urea ammonium nitrate, APP to being completely dissolved；50 60 DEG C are heated to, addition potassium dihydrogen phosphate, potassium nitrate, potassium sulfate, boric acid stir limpid to solution；Add NMF and be eventually adding remaining water constant volume, produce the micro- fertilizer of R type multifunctional liquids.Simple production process of the present invention, the content of organic matter is high, can improve the fertility level of soil, promotes crop root growth, and improving quality simultaneously increases yield, improves agricultural product economic benefit.

Description

R-type multifunctional liquid micro-fertilizer containing organic active substances and preparation method thereof

technical field

The invention relates to the technical field of fertilizers, in particular to an R-type multifunctional liquid micro-fertilizer containing organic active substances and a preparation method thereof.

Background technique

Agriculture plays a vital and fundamental role in my country's national economy. Fertilizer contributes more than 40% to the increase in crop yield, and is an important factor affecting the yield and quality of agricultural production. At present, solid fertilizers are widely used. Due to the poor water capacity of solid fertilizers, more than half of the fertilizer residues cause environmental pollution, soil compaction, soil fertility decline, and increasing dependence on external fertilizers; at the same time, the quality of agricultural products declines. , the ability to resist diseases and insect pests is reduced, and it is difficult to expect high yield and high quality. In order to solve many problems existing in solid fertilizers, liquid multi-component new fertilizers have become the main trend of fertilizer development. However, most liquid fertilizers currently on the market have their own defects, such as low nutrient content, prone to crystallization and precipitation, etc.

Contents of the invention

Aiming at the defects of the prior art, the present invention provides a R-type multifunctional liquid micro-fertilizer containing organic active substances and a preparation method thereof. The R-type multi-functional liquid micro-fertilizer combines the advantages of urea ammonium nitrate and ammonium polyphosphate, and adds A large amount of potassium humate is prepared; the preparation method of the liquid fertilizer is simple, the property is stable, and it can be stored at a lower temperature for a long time without crystallization.

In order to achieve the above object, a kind of R-type multifunctional liquid micro-fertilizer containing organic active substances provided by the present invention, the raw material of the R-type multi-functional liquid micro-fertilizer includes 190 to 230 parts of potassium humate in parts by weight , 50-70 parts of potassium dihydrogen phosphate, 20-40 parts of potassium sulfate, 60-100 parts of potassium nitrate, 4-6 parts of boric acid, 170-210 parts of ammonium polyphosphate (APP), 25-45 parts urea ammonium nitrate (UAN), 20-30 parts of humectant and 700-900 parts of water.

Further, the raw materials of the R-type multifunctional liquid micro-fertilizer include 200-220 parts by weight of potassium humate, 55-65 parts of potassium dihydrogen phosphate, 25-35 parts of potassium sulfate, 70-90 parts 4-6 parts of potassium nitrate, 4-6 parts of boric acid, 180-200 parts of ammonium polyphosphate (APP), 30-40 parts of urea ammonium nitrate (UAN), 20-30 parts of humectant and 750-850 parts of water .

Further, the raw materials of the R-type multifunctional liquid micro-fertilizer include 210 parts of potassium humate, 60 parts of potassium dihydrogen phosphate, 30 parts of potassium sulfate, 80 parts of potassium nitrate, 5 parts by weight. 190 parts of boric acid, 190 parts of ammonium polyphosphate (APP), 35 parts of urea ammonium nitrate (UAN), 26 parts of humectant and 800 parts of water.

The present invention also provides a method for preparing the above-mentioned R-type multifunctional liquid micro-fertilizer containing organic active substances, comprising the following steps:

1) Potassium humate, potassium dihydrogen phosphate, potassium sulfate, potassium nitrate, boric acid, ammonium polyphosphate (APP), urea ammonium nitrate (UAN), humectant and water are taken by weighing according to the above-mentioned weight and number ratio;

2) Add 50-70% water to the reaction kettle first, then add potassium humate and stir to dissolve, add urea ammonium nitrate (UAN) and ammonium polyphosphate (APP) while stirring until completely dissolved;

3) Heat to 50-60°C, add potassium dihydrogen phosphate, potassium nitrate, potassium sulfate, and boric acid and stir until the solution is clear;

4) After cooling, add a humectant and finally add the remaining water to make up the volume, and stir evenly to obtain the R-type multifunctional liquid micro-fertilizer.

The content percentage of the effective elements (in terms of pure nutrients) of the above-mentioned R type multifunctional liquid micro-fertilizer containing organic active substances is as follows

Table 1 The content percentage of liquid fertilizer (calculated by pure nutrient)

Index content of each element in table 2 liquid fertilizer

Indicator name Index value Boron (B), mg/L ≤50 Arsenic (As), g/L ≤0.1 Cadmium (Cd), g/L ≤0.1 Lead (Pb), g/L ≤0.5 Chromium (Cr), g/L ≤0.5 Mercury (Hg), g/L ≤0.05

The liquid fertilizer of the present invention can be diluted to 800-1000 times with water and sprayed on the leaves 3-4 times during use, or diluted to 400-500 times to rinse and irrigate the roots 3-5 times with an integrated system of water and fertilizer, and can Mix and spray with neutral or slightly acidic pesticides.

Theoretical Basis of the Invention

The present invention uses urea ammonium nitrate (UAN) and ammonium polyphosphate (APP) as main sources of nitrogen and phosphorus, and simultaneously adds a large amount of potassium humate. Urea ammonium nitrate is stable, without any impurities, and the utilization rate reaches 90%. It is highly efficient, safe and environmentally friendly. Ammonium polyphosphate is a kind of polyphosphate containing N and P. The degree of polymerization of agricultural ammonium polyphosphate is usually 5-18. It has good solubility and is the main variety of liquid fertilizer. Ammonium polyphosphate solution can chelate magnesium, boron and other elements without precipitation and loss of available phosphorus, and become a uniform multi-element fertilizer. At the same time, nearly dozens of N, P, K compound fertilizers can be prepared with nitrogen solution, urea, potassium chloride and water. The salting-out temperature of the compound fertilizer made of ammonium polyphosphate can reach below 0 degrees, and some can reach below -18 degrees, which is convenient for storage in cold regions. Potassium humate can improve the physical and chemical properties of soil and increase the soil aggregate structure; at the same time, it can promote the growth of crop roots, increase the nutrient absorption of crops and the stress resistance of plants, thereby improving the utilization rate of fertilizers and bringing high yield and high quality to crops. for a significant boost. At the same time, add organic substances potassium humate, trace element boric acid, and urea, potassium dihydrogen phosphate, potassium nitrate, potassium sulfate, etc., to make the liquid fertilizer rich in nutrients.

The beneficial effects of the present invention are:

The R-type multifunctional liquid micro-fertilizer containing organic active substances of the present invention has simple production process and high organic matter content, can improve soil fertility level, promote crop root growth, improve quality and increase yield, and increase economic benefits of agricultural products. The fertilizer of the invention can be stored and transported at relatively low temperature, and no crystallization will occur in long-term storage.

detailed description

In order to better explain the present invention, the main content of the present invention is further clarified below in conjunction with specific examples, but the content of the present invention is not limited to the following examples.

The R-type multifunctional liquid micro-fertilizer containing organic active substances, the raw materials of the R-type multi-functional liquid micro-fertilizer include 190-230 parts by weight of potassium humate, 50-70 parts of potassium dihydrogen phosphate, 20-40 parts of potassium sulfate, 60-100 parts of potassium nitrate, 4-6 parts of boric acid, 170-210 parts of ammonium polyphosphate (APP), 25-45 parts of urea ammonium nitrate (UAN), 20-30 parts Moisturizer and 700-900 parts of water.

The preparation method of the above-mentioned high-phosphorus type multifunctional ecological micro-fertilizer containing organic active substances comprises the following steps:

1) Potassium humate, potassium dihydrogen phosphate, potassium sulfate, potassium nitrate, boric acid, ammonium polyphosphate (APP), urea ammonium nitrate (UAN), humectant and water are taken by weighing according to the above-mentioned weight and number ratio;

2) Add 50-70% water to the reaction kettle first, then add potassium humate and stir to dissolve, add urea ammonium nitrate (UAN) and ammonium polyphosphate (APP) while stirring until completely dissolved;

3) Heat to 50-60°C, add potassium dihydrogen phosphate, potassium nitrate, potassium sulfate, and boric acid and stir until the solution is clear;

4) After cooling, add a humectant and finally add the remaining water to make up the volume, and stir evenly to obtain the R-type multifunctional liquid micro-fertilizer.

The above-mentioned R-type multifunctional liquid micro-fertilizer was compared with commercially available conventional fertilizers in Weifang, Shandong. The method of use is as follows:

During the growth period, dilute with water to 800-1000 times and spray 3-4 times on the leaves, or dilute to 400-500 times and rinse the roots with water and fertilizer for 3-5 times.

The comparative application test results of the above-mentioned R type multifunctional liquid micro-fertilizer and commercially available conventional fertilizers illustrate:

(1) Green onions: The effect test of green onions was carried out in Weifang, Shandong. Compared with conventional fertilizers, the plant height of green onions increased with this liquid fertilizer, the leaves were large and thick, and the fresh weight of a single plant increased significantly. 15%.

(2) Potatoes: Potato effect tests were carried out in Weifang, Shandong Province. Compared with conventional fertilizers, the application of this liquid fertilizer increased the size of potatoes, regular shape, increased starch content, and an increase of 10% to 20% in yield per mu.

Nutrient elements of R-type multifunctional liquid micro-fertilizer are easily absorbed by crops, effectively replenishing essential nutrient elements of crops, promoting root growth of crops, helping to increase nutrient absorption of crops, and enhancing crop resistance to stress; at the same time, the effect of increasing and stabilizing yield is obvious, and the quality is improved. improve.

Example 1

The preparation method of the R-type multifunctional liquid micro-fertilizer 1 containing organic active substances comprises the following steps:

1) Take by weighing 210 parts of potassium humate, 60 parts of potassium dihydrogen phosphate, 30 parts of potassium sulfate, 80 parts of potassium nitrate, 5 parts of boric acid, 190 parts of ammonium polyphosphate (APP) by weighing 210 parts by weight. ), 35 parts of urea ammonium nitrate (UAN), 26 parts of humectants and 800 parts of water;

2) Add 50-70% water to the reaction kettle first, then add potassium humate and stir to dissolve, add urea ammonium nitrate (UAN) and ammonium polyphosphate (APP) while stirring until completely dissolved;

3) Heat to 50-60°C, add potassium dihydrogen phosphate, potassium nitrate, potassium sulfate, and boric acid and stir until the solution is clear;

4) After cooling, add a humectant and finally add the remaining water to make up the volume, and stir evenly to obtain the R-type multifunctional liquid micro-fertilizer 1. R-type multifunctional ecological micro-fertilizer 1 is stable in properties, and does not appear precipitation after long-term storage at room temperature and -4°C for three months

Example 2

The fertilizer preparation method of the present embodiment is basically the same as that of Example 1, except that the formula content is different:

The formula of R-type multifunctional ecological micro-fertilizer 2 is: 200 parts of potassium humate, 70 parts of potassium dihydrogen phosphate, 35 parts of potassium sulfate, 70 parts of potassium nitrate, 5 parts of boric acid, and 200 parts of ammonium polyphosphate (APP), 40 parts of urea ammonium nitrate (UAN), 26 parts of humectants and 800 parts of water;

Example 3

The fertilizer preparation method of the present embodiment is basically the same as that of Example 1, except that the formula content is different:

The formula of R-type multifunctional ecological micro-fertilizer 3 is: 230 parts of potassium humate, 60 parts of potassium dihydrogen phosphate, 40 parts of potassium sulfate, 60 parts of potassium nitrate, 5 parts of boric acid, 200 parts of ammonium polyphosphate (APP), 30 parts of urea ammonium nitrate (UAN), 25 parts of humectant and 850 parts of water;

Example 4

The fertilizer preparation method of the present embodiment is basically the same as that of Example 1, except that the formula content is different:

The formula of R-type multifunctional ecological micro-fertilizer 4 is: 220 parts of potassium humate, 70 parts of potassium dihydrogen phosphate, 40 parts of potassium sulfate, 60 parts of potassium nitrate, 5 parts of boric acid, and 190 parts of ammonium polyphosphate (APP), 40 parts of urea ammonium nitrate (UAN), 25 parts of humectants and 800 parts of water;

Example 5

The fertilizer preparation method of the present embodiment is basically the same as that of Example 1, except that the formula content is different:

The formula of R-type multifunctional ecological micro-fertilizer 5 is: 200 parts of potassium humate, 70 parts of potassium dihydrogen phosphate, 35 parts of potassium sulfate, 70 parts of potassium nitrate, 5 parts of boric acid, 200 parts of ammonium polyphosphate (APP), 35 parts of urea ammonium nitrate (UAN), 25 parts of humectants and 850 parts of water;

Comparative example 1

The raw material formula of this fertilizer is: 210 parts of potassium humate, 60 parts of potassium dihydrogen phosphate, 30 parts of potassium sulfate, 80 parts of potassium nitrate, 5 parts of boric acid, 115 parts of monoammonium phosphate, 50 parts of urea , 26 parts of moisturizer and 800 parts of water;

The properties of the fertilizers in Examples 1 to 5 are stable, and no precipitation occurs after long-term storage at room temperature and -4°C for three months. The fertilizer in Comparative Example 1 partially precipitates after long-term storage at low temperature.

Other parts not specified in detail are prior art. Although the foregoing embodiment has described the present invention in detail, it is only a part of the embodiments of the present invention, rather than all embodiments, and people can also obtain other embodiments according to the present embodiment without inventive step, these embodiments All belong to the protection scope of the present invention.

Claims (4)

1. A R-type multifunctional liquid micro-fertilizer containing organic active substances, characterized in that: the raw material of the R-type multifunctional liquid micro-fertilizer comprises 190 to 230 parts of potassium humate, 50 to 230 parts by weight. 70 parts of potassium dihydrogen phosphate, 20-40 parts of potassium sulfate, 60-100 parts of potassium nitrate, 4-6 parts of boric acid, 170-210 parts of ammonium polyphosphate, 25-45 parts of urea ammonium nitrate, 20 parts ~30 parts of humectant and 700-900 parts of water. 2. The R-type multifunctional liquid micro-fertilizer containing organic active substances according to claim 1, characterized in that: the raw materials of the R-type multifunctional liquid micro-fertilizer include 200 to 220 parts of potassium humate in parts by weight , 55-65 parts of potassium dihydrogen phosphate, 25-35 parts of potassium sulfate, 70-90 parts of potassium nitrate, 4-6 parts of boric acid, 180-200 parts of ammonium polyphosphate, 30-40 parts of urea nitric acid Ammonium, 20-30 parts of humectant and 750-850 parts of water. 3. according to the described R type multifunctional liquid micro-fertilizer of organic active substance according to claim 2, it is characterized in that: the raw material of described R type multifunctional liquid micro-fertilizer comprises 210 parts of potassium humate, 60 parts of potassium dihydrogen phosphate, 30 parts of potassium sulfate, 80 parts of potassium nitrate, 5 parts of boric acid, 190 parts of ammonium polyphosphate, 35 parts of urea ammonium nitrate, 26 parts of humectant and 800 parts of water. 4. a kind of preparation method of the R type multifunctional liquid micro-fertilizer containing organic active substance described in claim 1 or 2 or 3, is characterized in that: comprise the following steps: 1) Potassium humate, potassium dihydrogen phosphate, potassium sulfate, potassium nitrate, boric acid, ammonium polyphosphate, urea ammonium nitrate, humectant and water are taken by weighing according to the above-mentioned ratio in parts by weight; 2) Add 50-70% water to the reactor first, then add potassium humate and stir to dissolve, add urea ammonium nitrate and ammonium polyphosphate until completely dissolved while stirring; 3) Heat to 50-60°C, add potassium dihydrogen phosphate, potassium nitrate, potassium sulfate, and boric acid and stir until the solution is clear; 4) After cooling, add a humectant and finally add the remaining water to make up the volume, and stir evenly to obtain the R-type multifunctional liquid micro-fertilizer.