CN107418586A - A kind of graininess paddy fields in south china acidic soil conditioner using rice husk as matrix - Google Patents
A kind of graininess paddy fields in south china acidic soil conditioner using rice husk as matrix Download PDFInfo
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Abstract
The present invention provides a kind of graininess paddy fields in south china acidic soil conditioner using rice husk as matrix, raw material components include carbonized rice husks 25%~38%, husk silicon alkali 10%~20%, flyash 14%~25%, silico-calcium magnesium phosphor potassium fertilizer 28%~40%, polyacrylamide 2%~8%.Conditioner of the present invention can not only significantly reduce the soil weight, increase soil porosity and macro aggregate ratio, effectively avoid soil compaction phenomenon, and can also provide a large amount of Ca2+、Mg2+、K+Deng base cation and the H of soil colloid absorption+And Al3+Equal proportion exchange, the H exchanged are carried out Deng acid ion is caused+、Al3+The OH carried in itself by the conditioner‑The OH discharged with activated silica hydrolysis‑In progress and/or precipitate, fundamentally solve " acid ", " poison " problem of rice field acid soil.
Description
Technical field
The present invention relates to a kind of graininess paddy fields in south china acidic soil conditioner using rice husk as matrix, belong to soil improvement
Technical field.
Background technology
Rice field is the maximum cultivated land resource of south China, still, the sial of soil clay particle under desiliconization richness iron calorization
Rate gradually reduces, exchangeable Al3+A large amount of generations, cause soil that self-souring occurs, while form aluminium poison.In recent years, chemical fertilizer
Excessive apply make arable soil nutrient imbalance, further speeded up soil acidification process.As shown by data, national pH ＜'s 5.5
Acid cultivated area rises to 18% from 7% before 30 years.By taking Hunan Province as an example, arable land acid-base value and second of 1980 soil
Earth compares when generally investigating, and the mean ph value of soil drops to 5.9 by 6.4, i.e., after 30 years soil acidification variables equivalent to nature
The state degree of lower 300 years.
The harm of soil acidification is mainly as follows：(1) paddy growth is influenceed, research shows：PH value is less than 5.5, and rice just has
There is early ageing in concealed loss；Then there is plant dwarfing less than 5.2 rice in pH value；PH value is less than 4.5, and rice yield will be by shadow
Ring；(2) nutrient availability, when this is due to pH value 6-8, the content highest of soil available nitrogen are influenceed；When pH is less than 6.5, soil
Phosphorus in earth becomes ferric phosphate aluminium and consolidated, and when pH value is less than 6.0, effectively potassium, calcium, the content of magnesium is drastically reduced in soil；
In addition, for middle microelements of calcium, magnesium, sulphur, boron, zinc, molybdenum etc., with the reduction of pH value, its validity reduces；(3) soil is influenceed
The activity of aluminium element in earth, with the decline of soil pH value, the activated aluminum in soil dramatically increases, and organically complexed aluminum significantly subtracts
Few, a large amount of enrichments of activated aluminum can cause rice poisoning by aluminum, and severe one can cause rice to wither, or even the underproduction.
In order to solve the above problems, CN103964975A discloses a kind of acid paddy soil conditioner and its user
Method, it includes following component：25-70 parts by weight plant ash, 20-35 parts by weight charcoals, 20-35 parts by weight paste lime, 1-
The mixed material of 15 parts by weight plant source organic fertilizer mixing extrusion formings.The technology is while acid paddy soil is improved, no
Soil texture is caused to be deteriorated, but the base cation such as the calcium and magnesium potassium of the soil conditioner due to that can not provide abundance is with causing acid in soil
Ion A l3+And H+Effectively exchanged, while effective silicon can not be supplemented, so rice field acid soil can not be nursed one's health fundamentally
Earth.
The content of the invention
In view of the shortcomings of the prior art, the present invention propose it is a kind of not only can fundamentally nurse one's health rice field acid soil, and
And can also effective improved soil structure, and can be long-term use of a kind of graininess paddy fields in south china acid soil using rice husk as matrix
Earth conditioner.
In order to solve the above technical problems, the technical scheme is that：
A kind of graininess paddy fields in south china acidic soil conditioner using rice husk as matrix, its raw material components include：
Carbonized rice husks, 22-38 parts by weight；
Husk silicon alkali, 10-20 parts by weight；
Flyash, 14-25 parts by weight；
Silico-calcium magnesium phosphor potassium fertilizer, 24-40 parts by weight；
Polyacrylamide, 2-8 parts by weight；
Binding agent, 2-10 parts by weight；
Wherein, the carbonized rice husks are prepared with the following method：
Husk is subjected to carbonization 4-6h under the conditions of 500-600 DEG C, ventilating and cooling to room temperature, produces the carbonized rice husks；
The husk silicon alkali is prepared with the following method：
It is 6-20wt%NaOH solution that concentration is added into the carbonized rice husks, controls the carbonized rice husks and the hydrogen-oxygen
The mass ratio for changing sodium solution is 1:3-1:8, boil and keep 2-4h, produce the husk silicon alkali.
The binding agent is attapulgite and/or bentonite.
The polyacrylamide is PAMA, and molecular weight is 300-500 ten thousand.
The described preparation method using rice husk as the graininess paddy fields in south china acidic soil conditioner of matrix, step are as follows：
(1) carbonized rice husks, husk silicon alkali, flyash and silico-calcium magnesium phosphor potassium fertilizer are weighed respectively according to above-mentioned parts by weight, fully
Mix and carry out ageing 7-10 days, produce mixed material system；
(2) binding agent is added into the mixed material system described in step (1), is granulated, after master batch shaping
The polyacrylamide is added, obtains shaped granule drying, screening, that is, is able to the graininess paddy fields in south china acid that rice husk is matrix
Property soil conditioner.
In step (2), add before the binding agent, pulverization process also is carried out to the mixed material system.
Polyacrylamide (PAM) in the step 2 is sprayed on particle surface after being dissolved in water, can also be with powder shape
Formula is spread on particle surface, and two ways depends on PAM addition, as addition it is larger when, preferably add in powder form, instead
It, in the form of a solution preferably.
Particle diameter after the mixed material system is crushed is 0.1-0.5mm.
The described particle size range using rice husk as the graininess paddy fields in south china acidic soil conditioner particle of matrix is 2-
5mm。
In step (2), the temperature that the shaped granule is dried is 75-100 DEG C.
The application method of described graininess paddy fields in south china acidic soil conditioner：Method of application is disposable bottom application.
Amount of application is generally every mu of 75~100kg, in site preparation, spreads fertilizer over the fields in soil surface, shallow to turn over.
The present invention can fundamentally adjust paddy fields in south china soil acidity, Exchange alkalinity and free acid in sweetening of the soil,
The exchangeable aluminum and active aluminium ion being passivated in soil, effectively solves " acid, poison " problem of paddy fields in south china acid soil.This be because
Soil conditioner for the present invention can provide substantial amounts of Ca2+、Mg2+And K+Deng base cation, can equal proportion with soil glue
The H of body absorption+And Al3+Swapped Deng cause acid ion, the H exchanged+、Al3+Adjusted with soil active acid by soil of the present invention
The OH that reason agent carries in itself-The OH discharged with the hydrolyzed silicate in being manured into soil-Effectively neutralize and precipitate.
The present invention can significantly reduce paddy soil unit weight, increase soil porosity and macro aggregate ratio, coordinate soil
Relation between middle moisture, temperature, air and nutriment, be advantageous to root system activity and draw nutrient, be growth and development of plants
Good condition is provided.Because PAM of the present invention, carbonized rice husks and flyash can significantly reduce soil appearance
Weight, increase soil porosity and macro aggregate ratio, wherein with carbonized rice husks and PAM effect phases in terms of soil porosity is increased
It is relatively optimal with PAM in terms of macro aggregate ratio is improved to best.In addition, PAM, carbonized rice husks and fine coal in the present invention
Ash is that arid biogeographic zone applies more water-keeping material with water suction and water retention property, wherein PAM strongly；Weathered coal, carbonized rice husks
Water absorption with flyash is more than one times of material in itself.The materials such as PAM, carbonized rice husks and flyash are pressed one by the present invention
Rice field red soil structure can be effectively improved after certainty ratio compounding, adjusts soil three phases (solid phase：Liquid phase：Gas phase), coordinate soil
Relation between middle moisture, temperature, air and nutriment, seepage and the loss of fertilizer are prevented, improve fertilizer nutrient utilization,
Effectively preserve the ecological environment.
The present invention can effectively supplement effective silicon, exchangeable calcium and exchangeable magnesium in paddy fields in south china soil, improve rice
Yield, improve rice quality.Due under the conditions of strong leaching, paddy fields in south china soil generally occur desiliconization richness iron calorization and
The base cations such as calcium, magnesium, sodium, potassium by the phenomenon of a large amount of leaching losses, so cause Available Silicon In Soils, exchangeable calcium, exchangeable magnesium and
Quick-acting potassium content and degree of base saturation are typically relatively low.If these nutrients wane for a long time, paddy growth will be restricted.This hair
Bright effective silicon, exchangeable calcium and the exchangeable magnesium that can significantly supplement in paddy fields in south china soil, targetedly solves water
Rice grows the problem of nutritional deficiency.
Husk and flyash used in the present invention are agriculture and industry waste, not only may be used using present invention production conditioner
To turn waste into wealth, and effectively alleviate environmental pressure.Rice husk is the byproduct after Rice producing, has good toughness, more
The features such as permeability and low-density and coarse quality, crude fiber content are generally 35.5%~45%, content of lignin 2l%
~26%, dioxide-containing silica is 10%~2l%, is to reduce the soil weight, increase the first-class improved materials of soil porosity.
At present, it is difficult to degrade because rice husk directly applies rice field, so in rural area mainly as fuel；Industrially mainly as generating
Field and the raw material of extraction chemical products, but because utilization is limited, still have a large amount of discarded and idle.
The above-mentioned technical proposal of the present invention has advantages below compared with prior art：
Graininess paddy fields in south china acidic soil conditioner of the present invention using rice husk as matrix, by including the paddy that is carbonized
The raw material components such as shell, husk silicon alkali, flyash, silico-calcium magnesium phosphor potassium fertilizer, polyacrylamide simultaneously carry out rational proportion, so as to be applied
After acid soil, the soil weight on the one hand can be significantly reduced, increases soil porosity and macro aggregate ratio so that soil
Balanced coordination is realized in earth between moisture, temperature, air and nutriment, fertilizer nutrient utilization is improved, effectively avoids soil
Hardened phenomenon；On the other hand, the conditioner can provide a large amount of Ca2+、Mg2+、K+Deng base cation, can be adsorbed with soil colloid
H+And Al3+Equal proportion exchange, the H exchanged are carried out Deng acid ion is caused+、Al3+Carried in itself with modifying agent of the present invention
OH-The OH discharged with hydrolyzed silicate-In generation and/or precipitation reaction, " acid ", " poison " for effectively solving acid soil are asked
Topic；In addition, conditioner of the present invention can also effectively supplement the content of effective silicon, exchangeable calcium and exchangeable magnesium in soil, carry
High crop yield, improve the quality of agricultural product.In summary, the graininess Rice in Southern China of the present invention using rice husk as matrix
Field acidic soil conditioner can fundamentally improve rice field acid soil, and be suitable for long-term use, and security is higher.
Brief description of the drawings
In order that present disclosure is more likely to be clearly understood, specific embodiment and combination below according to the present invention
Accompanying drawing, the present invention is further detailed explanation, wherein
Fig. 1 is the process chart that the present invention prepares graininess paddy fields in south china acidic soil conditioner using rice husk as matrix；
Fig. 2 is paddy soil Exchange alkalinity total amount and exchangeable base aggregate relation after conditioner processing of the present invention
Figure.
Embodiment
In example below 1g is represented with 1 parts by weight.
Embodiment 1
The present embodiment provides a kind of graininess paddy fields in south china acidic soil conditioner using rice husk as matrix, its raw material components
Including：
Carbonized rice husks, 33 parts by weight；
Husk silicon alkali, 12 parts by weight；
Flyash, 15 parts by weight；
Silico-calcium magnesium phosphor potassium fertilizer, 30 parts by weight；
PAMA (molecular weight is 3,000,000), 2 parts by weight；
Attapulgite, 2 parts by weight；
Wherein, the carbonized rice husks are prepared with the following method：
Husk is subjected to carbonization 6h under the conditions of 500 DEG C, ventilating and cooling to room temperature, produces the carbonized rice husks；
The husk silicon alkali is prepared with the following method：
In the carbonized rice husks into reactor add concentration be 20wt%NaOH solution, control the carbonized rice husks and
The mass ratio of the sodium hydroxide solution is 1:3, boil and keep 4h, produce the husk silicon alkali.
Further, the graininess paddy fields in south china acidic soil conditioner using rice husk as matrix, as shown in figure 1, adopting
Prepare with the following method：
(1) carbonized rice husks, husk silicon alkali, flyash and silico-calcium magnesium phosphor potassium fertilizer are weighed respectively according to above-mentioned parts by weight, fully
Mix and carry out ageing 7 days, produce mixed material system；
(2) attapulgite is added into the mixed material system described in step (1), is granulated, treat that master batch is molded
After add the PAMA, obtain shaped granule through 75-100 DEG C drying, screening, obtain particle diameter between 2-5mm
Between particle be the conditioner, measured, pack to obtain conditioner product, particle diameter is more than 5mm and the particle less than 1mm
It is granulated again after re-starting crushing.
Embodiment 2
The present embodiment provides a kind of graininess paddy fields in south china acidic soil conditioner using rice husk as matrix, its raw material components
Including：
Carbonized rice husks, 30 parts by weight；
Husk silicon alkali, 12 parts by weight；
Flyash, 18 parts by weight；
Silico-calcium magnesium phosphor potassium fertilizer, 27 parts by weight；
PAMA (molecular weight is 4,000,000), 7 parts by weight；
Bentonite, 6 parts by weight；
Wherein, the carbonized rice husks are prepared with the following method：
Husk is subjected to carbonization 4h under the conditions of 600 DEG C, ventilating and cooling to room temperature, produces the carbonized rice husks；
The husk silicon alkali is prepared with the following method：
It is 10wt%NaOH solution that concentration is added into the carbonized rice husks, controls the carbonized rice husks and the hydroxide
The mass ratio of sodium solution is 1:5, boil and keep 3.5h, produce the husk silicon alkali.
Further, the graininess paddy fields in south china acidic soil conditioner using rice husk as matrix, with the following method
Prepare：
(1) carbonized rice husks, husk silicon alkali, flyash and silico-calcium magnesium phosphor potassium fertilizer are weighed respectively according to above-mentioned parts by weight, fully
Mix and carry out ageing 8 days, produce mixed material system；
(2) the mixed material system described in step (1) is first subjected to pulverization process, mixed material after crushing using pulverizer
The particle diameter of system is 0.1-0.5mm, adds the bentonite afterwards, is granulated, added after master batch shaping it is described it is cloudy from
Sub- polyacrylamide, shaped granule is obtained through 75-100 DEG C of drying, screening, it is granular between 2-5mm to obtain particle diameter
Conditioner.
Embodiment 3
The present embodiment provides a kind of graininess paddy fields in south china acidic soil conditioner using rice husk as matrix, its raw material components
Including：
Carbonized rice husks, 38 parts by weight；
Husk silicon alkali, 10 parts by weight；
Flyash, 17 parts by weight；
Silico-calcium magnesium phosphor potassium fertilizer, 24 parts by weight；
PAMA (molecular weight is 4,500,000), 4 parts by weight；
Bentonite, 10 parts by weight；
Wherein, the carbonized rice husks are prepared with the following method：
Husk is subjected to carbonization 5h under the conditions of 550 DEG C, ventilating and cooling to room temperature, produces the carbonized rice husks；
The husk silicon alkali is prepared with the following method：
It is 7wt%NaOH solution that concentration is added into the carbonized rice husks, controls the carbonized rice husks and the hydroxide
The mass ratio of sodium solution is 1:7, boil and keep 2h, produce the husk silicon alkali.
Further, the graininess paddy fields in south china acidic soil conditioner using rice husk as matrix, with the following method
Prepare：
(1) carbonized rice husks, husk silicon alkali, flyash and silico-calcium magnesium phosphor potassium fertilizer are weighed respectively according to above-mentioned parts by weight, fully
Mix and carry out ageing 7 days, produce mixed material system；
(2) the mixed material system described in step (1) is first subjected to pulverization process, mixed material after crushing using pulverizer
The particle diameter of system is 0.1-0.5mm, adds the bentonite afterwards, is granulated, added after master batch shaping it is described it is cloudy from
Sub- polyacrylamide, shaped granule is obtained through 75-100 DEG C of drying, screening, it is granular between 2-5mm to obtain particle diameter
Conditioner.
Embodiment 4
The present embodiment provides a kind of graininess paddy fields in south china acidic soil conditioner using rice husk as matrix, its raw material components
Including：
Carbonized rice husks, 21 parts by weight；
Husk silicon alkali, 17 parts by weight；
Flyash, 14 parts by weight；
Silico-calcium magnesium phosphor potassium fertilizer, 36 parts by weight；
PAMA (molecular weight is 5,000,000), 5 parts by weight；
Attapulgite and bentonite are according to mass ratio 1:The mixture of 1 composition, 7 parts by weight；
Wherein, the carbonized rice husks are prepared with the following method：
Husk is subjected to carbonization 5h under the conditions of 550 DEG C, ventilating and cooling to room temperature, produces the carbonized rice husks；
The husk silicon alkali is prepared with the following method：
It is 15wt%NaOH solution that concentration is added into the carbonized rice husks, controls the carbonized rice husks and the hydroxide
The mass ratio of sodium solution is 1:4, boil and keep 4h, produce the husk silicon alkali.
Further, the graininess paddy fields in south china acidic soil conditioner using rice husk as matrix, with the following method
Prepare：
(1) carbonized rice husks, husk silicon alkali, flyash and silico-calcium magnesium phosphor potassium fertilizer are weighed respectively according to above-mentioned parts by weight, fully
Mix and carry out ageing 10 days, produce mixed material system；
(2) the mixed material system described in step (1) is first subjected to pulverization process, mixed material after crushing using pulverizer
The particle diameter of system is 0.1-0.5mm, adds the attapulgite and bentonite afterwards, is granulated, and is added after master batch shaping
Enter the PAMA, obtain shaped granule through 75-100 DEG C of drying, screening, obtain particle diameter between 2-5mm
Granular conditioner.
Embodiment 5
The present embodiment provides a kind of graininess paddy fields in south china acidic soil conditioner using rice husk as matrix, its raw material components
Including：
Carbonized rice husks, 22 parts by weight；
Husk silicon alkali, 20 parts by weight；
Flyash, 14 parts by weight；
Silico-calcium magnesium phosphor potassium fertilizer, 40 parts by weight；
PAMA (molecular weight is 5,000,000), 8 parts by weight；
Attapulgite and bentonite are according to mass ratio 1:The mixture of 1 composition, 6 parts by weight；
Wherein, the carbonized rice husks are prepared with the following method：
Husk is subjected to carbonization 5h under the conditions of 550 DEG C, ventilating and cooling to room temperature, produces the carbonized rice husks；
The husk silicon alkali is prepared with the following method：
It is 6wt%NaOH solution that concentration is added into the carbonized rice husks, controls the carbonized rice husks and the hydroxide
The mass ratio of sodium solution is 1:8, boil and keep 4h, produce the husk silicon alkali.
Further, the graininess paddy fields in south china acidic soil conditioner using rice husk as matrix, with the following method
Prepare：
(1) carbonized rice husks, husk silicon alkali, flyash and silico-calcium magnesium phosphor potassium fertilizer are weighed respectively according to above-mentioned parts by weight, fully
Mix and carry out ageing 10 days, produce mixed material system；
(2) the mixed material system described in step (1) is first subjected to pulverization process, mixed material after crushing using pulverizer
The particle diameter of system is 0.1-0.5mm, adds the attapulgite and bentonite afterwards, is granulated, and is added after master batch shaping
Enter the PAMA, obtain shaped granule through 75-100 DEG C of drying, screening, obtain particle diameter between 2-5mm
Granular conditioner.
The application method of graininess paddy fields in south china acidic soil conditioner described in 1-5 of the embodiment of the present invention：Method of application
For disposable bottom application.Amount of application is generally every mu of 75~100kg, in site preparation, spreads fertilizer over the fields in soil surface, shallow to turn over.
Comparative example 1
This comparative example provides a kind of acidic soil conditioner, and it includes following component：
Plant ash, 52 parts by weight；
Charcoal, 28 parts by weight；
Paste lime, 28 parts by weight；
Plant source organic fertilizer, 8 parts by weight.
Above-mentioned material component is subjected to mixing extrusion forming according to above-mentioned parts by weight, obtains mixing of the granularity between 2-5mm
Material is acidic soil conditioner.
Experimental example 1
The graininess paddy fields in south china acidic soil conditioner of the present invention has carried out a series of experiment on rice, achieves
Good application effect.
Experiment is carried out in Central Jiangxi Province Ji'an-Taihe Basin Taihe County, not apply conditioner as control (CK), is located at and is not applied tune
50kg/ mus (CK+T50), 75kg/ mus (CK+T75), 100kg/ mus (CK+T100), 125kg/ mus (CK+ are increased on the basis of reason agent
T125) four dosage levels of conditioner of the present invention, each processing repeat three times, totally 18 cells, random district's groups arrangement, cell face
Product 30m2。
(1) paddy soil alkali total amount, composition and the degree of base saturation after soil conditioner improvement of the present invention
From table 1, compared with compareing (CK), increased in control basis soil conditioner 50kg/ mus of the present invention,
The paddy soil exchangeability Ca of 75kg/ mus, 100kg/ mus and the processing of 125kg/ mus2+、Mg2+、K+Content and exchangeable base total amount
And degree of base saturation substantially increases, amplification increases with the increase of conditioner dosage.As can be seen here, conditioner of the present invention can
Effectively to supplement the exchangeability Ca of colloid absorption2+、Mg2+、K+Deng base cation, degree of base saturation is improved.
The measurement result of Soil exchangeable Al composition, total amount and degree of base saturation after table 1- improvement
Note：Data are mean+SD in table, mark lowercase letter LSD the result of multiple comparisons, and same column is identical
Letter represents that difference is not notable
(P<0.05) form for, appearing below letter has identical meaning.
(2) paddy soil Exchange alkalinity, exchangeable Al after soil conditioner improvement of the present invention3+And pH value
Using conditioner of the present invention, to adjusting the pH value of paddy fields in south china acid soil and reducing soil exchangeable acid, exchange
Property Al3+There is positive effect.As can be seen from Table 2, compared with compareing (CK), the soil conditioning of the present invention is increased in control basis
Agent 50kg/ mus, 75kg/ mus, 100kg/ mus and the paddy soil pH value of 125kg/ mus processing significantly increase, soil exchangeable acid
Total amount, exchangeability H+And exchangeable Al3+Amount is obvious to be reduced, and dosage is bigger, and effect is more obvious, it can be seen that, tune of the invention
Manage agent can effectively sweetening of the soil active acid and Exchange alkalinity, the exchangeable aluminum being passivated in soil, effectively solution paddy fields in south china soil
" acid, poison " problem.
The measurement result of soil exchangeable acid and active acid (pH value) after table 2- improvement
(3) pass after soil conditioner improvement of the present invention between paddy soil Exchange alkalinity total amount and exchangeable base total amount
System
From Figure 2 it can be seen that paddy soil exchangeable base total amount significantly increases with the increase of soil conditioner dosage of the present invention
Greatly, by equation y=0.0059x+0.0303 (R2=0.99, y is Soil exchangeable Al total amount in formula, and x is that conditioner uses
Amount) it is visible, the unit incrementss of Soil exchangeable Al total amount are 0.006cmol/kg or so；Soil exchangeable acid total amount is with this
The increase of invention soil conditioner dosage and substantially reduce, by equation y=0.0061x+0.0231 (R2=0.99, y is soil in formula
Earth Exchange alkalinity total amount, x are conditioner usage amount) it is visible, the unit decrement of soil exchanged acid total amount is also 0.006cmol/
kg.Thus illustrate, the Ca that soil conditioner of the present invention provides2+、Mg2+And K+Cause acid ion (the H that can be adsorbed with soil colloid+With
Al3+) exchange with carrying out equal proportion, the H exchanged+、Al3+The OH carried in itself by soil conditioner of the present invention-And silicate
Hydrolyze the OH discharged-Effectively neutralize and precipitate.It can be seen that the present invention can fundamentally improve paddy fields in south china acid soil.
(4) nutrient content such as the effective silicon of paddy soil, rapid available phosphorus and available potassium after soil conditioner improvement of the present invention
From table 3, compared with control (CK) processing, increased in control basis soil conditioner 50kg/ mus of the present invention,
75kg/ mus, soil organic matter, electrical conductivity, rapid available phosphorus and the available potassium of 100kg/ mus and the processing of 125kg/ mus and effective silicon have
Increased, increasing degree increases and significantly increased with dosage, and the amount of increasing is handled more than 75kg/ mus has reached significant difference
It is horizontal.As can be seen here, rapid available phosphorus in paddy fields in south china soil and quick-acting can effectively be supplemented using the soil conditioner of the present invention
Potassium and effective silicon nutrient, and increase soil fertility, dosage is bigger, and effect is more obvious.
Soil Nutrients in Paddy Field and electrical conductivity after table 3- improvement
Note：The soil ratio of electrical conductivity is 5:1
(5) the single cropping yield and four seasons average product of rice cultivation after conditioner are applied
Result of the test of the conditioner of the present invention on four seasons rice is from table 4, compared with compareing (CK), in control basis
On increase soil conditioner 50kg/ mus of the present invention, 75kg/ mus, 100kg/ mus and each season rice yield of 125kg/ mus processing
Increase, by four seasons yield it is average after find, amount of increase in production has reached significant difference level 7%~10%.By
This is visible, and south rice yield can be effectively improved by increasing conditioner of the present invention on the basis of peasant habit fertilising.
Table 4- applies the single cropping yield and four seasons average product of rice cultivation after conditioner
Experimental example 2
Experiment is carried out in Central Jiangxi Province Ji'an-Taihe Basin Taihe County, not apply conditioner as control (CK), is located at and is not applied tune
The conditioner 75kg/ mus of comparative example 1, and two subjects of conditioner 75kg/ mus of the present invention are increased on the basis of reason agent, at totally 3
Reason, each processing repeat three times, totally 9 cells, random district's groups arrangement, plot area 60m2。
Result of the test compared with not applying conditioner processing (CK), applies the soil exchangeable after conditioner processing from table 5
Sour total amount, exchangeability H+With soil exchangeable Al3+Significantly reduce, soil pH value significantly improves.With the processing of comparative example conditioner
Compare, the soil pH value after conditioner processing of the present invention significantly improves 7.2%, soil exchangeable acid total amount, exchangeability H+With
Soil exchangeable Al3+21.2%, 7.8% and 30.9% is significantly reduced respectively.As can be seen here, conditioner of the invention is in improvement rice
More other conditioner effects become apparent from terms of the soil acidity of field.
The measurement result of soil exchangeable acid and active acid (pH value) after table 5- improvement
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (9)
1. a kind of graininess paddy fields in south china acidic soil conditioner using rice husk as matrix, it is characterised in that raw material components include：
Carbonized rice husks, 22-38 parts by weight；
Husk silicon alkali, 10-20 parts by weight；
Flyash, 14-25 parts by weight；
Silico-calcium magnesium phosphor potassium fertilizer, 24-40 parts by weight；
Polyacrylamide, 2-8 parts by weight；
Binding agent, 2-10 parts by weight；
Wherein, the carbonized rice husks are prepared with the following method：
Husk is subjected to carbonization 4-6h under the conditions of 500-600 DEG C, ventilating and cooling to room temperature, produces the carbonized rice husks；
The husk silicon alkali is prepared with the following method：
It is 6-20wt%NaOH solution that concentration is added into the carbonized rice husks, controls the carbonized rice husks and the sodium hydroxide
The mass ratio of solution is 1:3-1:8, boil and keep 2-4h, produce the husk silicon alkali.
2. the graininess paddy fields in south china acidic soil conditioner according to claim 1 using rice husk as matrix, its feature exists
In the binding agent is attapulgite and/or bentonite.
3. the graininess paddy fields in south china acidic soil conditioner according to claim 1 or 2 using rice husk as matrix, its feature
It is, the polyacrylamide is PAMA, and molecular weight is 300-500 ten thousand.
4. according to any described systems using rice husk as the graininess paddy fields in south china acidic soil conditioner of matrix of claim 1-3
Preparation Method, step are as follows：
(1) carbonized rice husks, husk silicon alkali, flyash and silico-calcium magnesium phosphor potassium fertilizer are weighed respectively according to above-mentioned parts by weight, be sufficiently mixed
And ageing 7-10 days is carried out, produce mixed material system；
(2) binding agent is added into the mixed material system described in step (1), is granulated, added after master batch shaping
The polyacrylamide, shaped granule drying, screening are obtained, that is, be able to the graininess paddy fields in south china acid soil that rice husk is matrix
Earth conditioner.
5. preparation method according to claim 4, it is characterised in that in step (2), add before the binding agent, also
Pulverization process is carried out to the mixed material system.
6. preparation method according to claim 5, it is characterised in that the mixed material system crushed after particle diameter
For 0.1-0.5mm.
7. according to any described preparation methods of claim 4-6, it is characterised in that the graininess using rice husk as matrix
The particle size range of paddy fields in south china acidic soil conditioner particle is 2-5mm.
8. according to any described preparation methods of claim 4-7, it is characterised in that in step (2), the shaped granule is carried out
The temperature of drying is 75-100 DEG C.
9. any described graininess paddy fields in south china acidic soil conditioners using rice husk as matrix of claim 1-3 are applied to south
Square acid soil improvement, usage amount are every mu of 75~100kg.
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| CN108587644A (en) * | 2018-07-05 | 2018-09-28 | 安徽袁粮水稻产业有限公司 | A kind of Acid Paddy Soils modifying agent |
| CN109865740A (en) * | 2019-02-14 | 2019-06-11 | 中国科学院地球化学研究所 | A method of calcareous Paddy Soils rice enrichment inorganic mercury and methyl mercury are reduced using bentonite combination charcoal |
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| US11306033B2 (en) | 2016-12-17 | 2022-04-19 | Dead Sea Works Ltd. | Process for the production of potassium sulphate and magnesium sulphate from carnallite and sodium sulphate |
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| CN111732478A (en) * | 2020-07-02 | 2020-10-02 | 江西省农业科学院土壤肥料与资源环境研究所 | Honeycomb-shaped citrus orchard soil acidification conditioner convenient for mechanical application |
| CN111732478B (en) * | 2020-07-02 | 2022-02-01 | 江西省农业科学院土壤肥料与资源环境研究所 | Honeycomb-shaped citrus orchard soil acidification conditioner convenient for mechanical application |
| CN111943778A (en) * | 2020-08-20 | 2020-11-17 | 甘肃省农业科学院土壤肥料与节水农业研究所 | Organic agricultural acid soil potassium conditioner |
| CN113736473A (en) * | 2021-10-19 | 2021-12-03 | 龙蟒大地农业有限公司 | Granular acid soil conditioner and preparation method thereof |
| CN114456000A (en) * | 2022-02-11 | 2022-05-10 | 辽宁省农业科学院 | Paddy field soil carbon fixing agent and application thereof |
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