CN110734768A - soil conditioner and its production process - Google Patents

Abstract

The invention discloses soil conditioners, which comprise 80-90% by mass of limestone powder, 1-5% by mass of organic high molecular compounds, 5-15% by mass of plant ash and 4-10% by mass of water, wherein the organic high molecular compounds are cassava powder, and meanwhile the invention discloses a production process of the soil conditioner.

Description

soil conditioner and its production process

Technical Field

The invention relates to the technical field of soil improvement, in particular to an soil conditioner and a production process thereof.

Background

The soil conditioner mainly comprises erosion, poor texture, poor structure or ploughability, saline-alkali, acidification, toxic substance pollution, a poor soil layer which prevents the growth of plant root systems, excessive or insufficient soil moisture, low fertility or unbalanced nutrient elements and the like.

For example, the invention name of CN2013105948538 is ' acid soil conditioners and a preparation method', which discloses acid soil conditioners and a preparation method, wherein the acid soil conditioners are prepared from fermentation biogas slurry, dipotassium hydrogen phosphate and potassium carbonate in a certain proportion, the steps of measuring complete fermentation biogas slurry, measuring 1 liter of complete fermentation biogas slurry in a measuring cylinder, putting the complete fermentation biogas slurry in a 2 liter clean glass beaker, measuring the amount of the acid soil conditioner, weighing potassium dihydrogen phosphate and potassium carbonate according to a volume-to-mass ratio of 1 liter/5 g/10 g and percent of balance respectively according to a certain proportion, sequentially adding potassium dihydrogen phosphate and potassium carbonate to 1 liter of complete fermentation biogas slurry according to a certain proportion, stirring while stirring until the potassium dihydrogen phosphate is completely dissolved, and then adding the potassium carbonate after the potassium dihydrogen phosphate is completely dissolved to obtain the conditioner.

The invention is CN105112070B entitled " acid soil conditioners and its preparation method", disclosing acid soil conditioners and its preparation method, the method includes the steps of preparing phosphate-containing solid from glyphosate waste liquid, preparing soil conditioner, granulating and drying, comparing with CK, the pH of tomato plot soil using the acid soil conditioner of the invention is increased by 0.53 unit, in the aspect of nematode resistance, the disease progression of tomato root-knot nematodes in the plot using the acid soil conditioner of the invention is reduced from 4.86 to 1.24, the number of nematodes parasitizing in roots and residual nematode eggs is greatly reduced, in addition, the content of cadmium, lead, total mercury and total arsenic in tomato fruits is respectively reduced by 14.29%, 26.56%, 28.13% and 23.64%.

The invention name of CN103436266B is 'a method for producing a secondary element acid soil conditioner by using industrial calcium silicate board waste', and discloses a method for producing a secondary element acid soil conditioner by using industrial calcium silicate board waste. The main operation is that the calcium silicate board, white mud, dolomite and the like as well as the additive A and B are used as mixed materials, and then the mixture is ball milled, dried, formed, roasted, activated, cooled and crushed to prepare the mineral substance nutritional type acid soil conditioner. The acid soil conditioner contains more than 60% of available nutrients, more than 25% of available calcium oxide, more than 20% of available silicon dioxide, more than 5% of available magnesium oxide, more than 5% of available sulfur trioxide, more than 2% of available chlorine and various trace element components. The product is weakly alkaline (pH = 9-12). The acid soil conditioner product prepared by the invention can be used for adjusting the physicochemical property of acid or saline-alkali soil and comprehensively improving the level of trace elements in the soil.

The granular soil conditioner is prepared by adopting natural mineral resources through scientific formula, the production process and the product are green and harmless, the production cost is low, the granular soil conditioner is suitable for acid soil, and the granular soil conditioner is beneficial to improving the nutrition required by the growth of crops and convenient for farmers to apply.

Disclosure of Invention

In view of the above, the present invention aims to provide soil conditioners which are low in production cost, can effectively improve acid soil, and are advantageous for increasing yield.

The technical scheme includes that the soil conditioner comprises limestone powder, organic high molecular compounds, plant ash and water.

, the soil conditioner comprises the following raw materials, by mass, 80-90% of limestone powder,

5-15% of plant ash, 1-5% of cassava flour and 4-10% of water; wherein the sum of the contents of the components is 100 percent.

, the organic polymer compound is cassava flour.

, the limestone powder has a particle size standard of more than 80 meshes.

The invention also provides a production process of the soil conditioner, which comprises the following steps:

s1: firstly, adding all limestone powder and plant ash into a stirring bin, and then adding all water and stirring;

s2: adding all the cassava powder while stirring, and uniformly mixing to obtain a bottom material;

s3: conveying the base material to a granulator for granulation to obtain a granular material body;

s4: conveying the material bodies to a screening device for screening, conveying the qualified material bodies passing through screening to a drying device for drying, and taking the unqualified material bodies not passing through screening as the bottom material for recycling;

s5: and conveying the dried qualified material bodies to a packaging device for packaging to obtain finished products.

The invention has the advantages of

The soil conditioner provided by the invention is different from the existing formula of the soil conditioner, limestone powder (namely mineral powder) is used as a base material, plant ash rich in mineral elements and cassava powder rich in nutrition are used as auxiliary materials, and the mixture is granulated into the granular conditioner after mixing, so that the granular conditioner is convenient to package and apply, is suitable for acid soil, provides nutrition required by crop growth, improves the yield and quality of crops, has the characteristics of greenness, pure nature, no toxic or side effect on people and livestock, less dust during application, balanced and lasting fertility and high utilization rate, and has the application prospect of .

Detailed Description

The soil conditioner provided by the invention comprises 80-90% of limestone powder, 1-5% of organic high molecular compound, 5-15% of plant ash and 4-10% of water in percentage by mass, wherein the organic high molecular compound is cassava powder, provides nutrients for crops and is beneficial to stirring and mixing of raw materials, and the particle size standard of the limestone powder is larger than 80 meshes.

The invention is further illustrated in below based on specific examples.

Example 1

Adding 80% limestone powder (weight percentage, the same below) and 5% plant ash into a stirring bin, and then adding 10% water and stirring; adding 5% of cassava powder at a constant speed while stirring, and uniformly mixing to obtain a bottom material; conveying the base material to a granulator for granulation to obtain a granular material body; conveying the material bodies to a screening device for screening, conveying the qualified material bodies passing through screening to a drying device for drying, and taking the unqualified material bodies not passing through screening as the bottom material for recycling; and conveying the dried qualified material bodies to a packaging device for packaging to obtain granular finished products.

Example 2

Adding 80% limestone powder (weight percentage, the same below) and 15% plant ash into a stirring bin, and then adding 4% water and stirring; adding 1% of cassava powder at a constant speed while stirring, and uniformly mixing to obtain a bottom material; conveying the base material to a granulator for granulation to obtain a granular material body; conveying the material bodies to a screening device for screening, conveying the qualified material bodies passing through screening to a drying device for drying, and taking the unqualified material bodies not passing through screening as the bottom material for recycling; and conveying the dried qualified material bodies to a packaging device for packaging to obtain granular finished products.

Example 3

Adding 80% limestone powder (weight percentage, the same below) and 10% plant ash into a stirring bin, and then adding 8% water and stirring; adding 2% of cassava powder at a constant speed while stirring, and uniformly mixing to obtain a bottom material; conveying the base material to a granulator for granulation to obtain a granular material body; conveying the material bodies to a screening device for screening, conveying the qualified material bodies passing through screening to a drying device for drying, and taking the unqualified material bodies not passing through screening as the bottom material for recycling; and conveying the dried qualified material bodies to a packaging device for packaging to obtain granular finished products.

Example 4

Adding 90% of limestone powder (weight percentage, the same below) and 5% of plant ash into a stirring bin, and then adding 4% of water and stirring; adding 1% of cassava powder at a constant speed while stirring, and uniformly mixing to obtain a bottom material; conveying the base material to a granulator for granulation to obtain a granular material body; conveying the material bodies to a screening device for screening, conveying the qualified material bodies passing through screening to a drying device for drying, and taking the unqualified material bodies not passing through screening as the bottom material for recycling; and conveying the dried qualified material bodies to a packaging device for packaging to obtain granular finished products.

Example 5

Adding 85% limestone powder (weight percentage, the same below) and 9% plant ash into a stirring bin, and then adding 5% water and stirring; adding 1% of cassava powder at a constant speed while stirring, and uniformly mixing to obtain a bottom material; conveying the base material to a granulator for granulation to obtain a granular material body; conveying the material bodies to a screening device for screening, conveying the qualified material bodies passing through screening to a drying device for drying, and taking the unqualified material bodies not passing through screening as the bottom material for recycling; and conveying the dried qualified material bodies to a packaging device for packaging to obtain granular finished products.

Example 6

Adding 85% limestone powder (weight percentage, the same below) and 9% plant ash into a stirring bin, and then adding 4% water and stirring; adding 2% of cassava powder at a constant speed while stirring, and uniformly mixing to obtain a bottom material; conveying the base material to a granulator for granulation to obtain a granular material body; conveying the material bodies to a screening device for screening, conveying the qualified material bodies passing through screening to a drying device for drying, and taking the unqualified material bodies not passing through screening as the bottom material for recycling; and conveying the dried qualified material bodies to a packaging device for packaging to obtain granular finished products.

Example 7

Sequentially adding 85% of limestone powder (weight percentage, the same below) and 9% of plant ash, 4% of water and 2% of cassava powder into a stirring bin, stirring and mixing, and uniformly mixing to obtain a bottom material; conveying the base material to a granulator for granulation to obtain a granular material body; conveying the material bodies to a screening device for screening, conveying the qualified material bodies passing through screening to a drying device for drying, and taking the unqualified material bodies not passing through screening as the bottom material for recycling; and conveying the dried qualified material bodies to a packaging device for packaging to obtain granular finished products.

The technical specifications of the soil conditioners of examples 1 to 7 are shown in Table 1.

TABLE 1 technical indices of soil conditioners of the examples

Item	Example 1	Example 2	Example 3	Example 4	Example 5	Example 6	Example 7
								Calcium oxide%	67	64	64	71	69	68	68
pH value	9.1	9.5	9.3	10.1	9.2	9.3	9.0
								Particle size (1 nm to 4.75 nm)	88%	92%	90%	94%	96%	90%	87%

The results of the soil conditioners of examples 1-7 are shown in Table 2.

TABLE 2 Effect of the soil conditioner of the examples

Item

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

Example 7

CK

Dosage g/mu

150 g/time, repeat 4 Next time

150 g/time, repeat 4 Next time

150 g/time, repeat 4 Next time

150 g/time, repeat 4 Next time

150 g/time, repeat 4 Next time

150 g/time, repeat 4 Next time

150 g/time, repeat 4 Next time

Is not used

pH value of soil

6.77

6.54

6.31

6.53

7.01

6.69

6.53

5.13

Yield increase of field crops Percentage ratio%

Rice yield increase 12.5

Yield increase of rice 13.1

Yield of rice is increased by 13.6

Rice yield increase 14.5

Yield of rice is increased by 15.8

Yield of rice is increased by 15.4

Rice yield increase 14.7

0

It can be seen from the table that the products of examples 1 to 7 have excellent technical indexes, the calcium oxide content is greater than 50%, the PH value is between 8.5 and 10.5, the content of the particle size (1 nm to 4.75 nm) is greater than 85%, the particles are uniform, the color and luster are pale white, and after the soil conditioner of examples 1 to 7 is used in acid soil, compared with the soil conditioner which is not used, the PH value of the soil is effectively increased, the difference is significant, the yield increasing effect on paddy of field crops is significant, the difference is greater than 10%, and the difference is significant.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (5)

1, soil conditioners, which are characterized by comprising limestone powder, organic high molecular compounds, plant ash and water.

2. The soil conditioners of claim 1 wherein the soil conditioners comprise the following raw materials by mass percent:

80-90% of limestone powder;

5-15% of plant ash;

1-5% of cassava flour;

4-10% of water;

wherein the sum of the contents of the components is 100 percent.

3. The soil conditioners of claim 1, wherein the organic polymer compound is tapioca flour.

4. The soil conditioners of claim 1 wherein the limestone powder has a particle size standard of greater than 80 mesh.

5. The process for producing the soil conditioner of any one of claims 1-4 and , comprising the steps of:

s1: firstly, adding all limestone powder and plant ash into a stirring bin, and then adding all water and stirring;

s2: adding all the cassava powder while stirring, and uniformly mixing to obtain a bottom material;

s3: conveying the base material to a granulator for granulation to obtain a granular material body;

s4: conveying the material bodies to a screening device for screening, conveying the qualified material bodies passing through screening to a drying device for drying, and taking the unqualified material bodies not passing through screening as the bottom material for recycling;

s5: and conveying the dried qualified material bodies to a packaging device for packaging to obtain finished products.