CN104531160B - A kind of sour soil disease cures agent and preparation method thereof - Google Patents
A kind of sour soil disease cures agent and preparation method thereof Download PDFInfo
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Abstract
Agent, pH=10 12, including potassium carbonate or potassium hydroxide, in addition to alginic acid extract and marine alga organic matter are cured the invention provides a kind of sour soil disease, the total amount of the alginic acid extract and marine alga organic matter cures the 60% of agent gross mass no less than sour soil disease；Wherein, the alginic acid extract is obtained by marine alga by basic hydrolysis, and the marine alga organic matter is obtained by marine alga by complex enzyme for hydrolyzing.Sour soil disease of the present invention, which cures agent, also includes calcium oxide, magnesia and phosphoric acid.The present invention also provides the preparation method and application that the sour soil disease cures agent.The sour soil disease that the present invention is provided, which cures agent, has preferable buffer capacity to acid and alkali, can adjust soil pH value to 5.8 7.0, and kept pH stable at 36 months；Phosphorus that in addition can also be in activating soil, prevents the intoxicating phenomenon of the divalence above metal such as crop aluminium, manganese.It is also crop supplement calcium, magnesium isoreactivity moderate-element, promotion plant growth.
Description
Technical field
The invention belongs to acid soil improvement field.Specifically, agent and its system are cured the present invention relates to a kind of sour soil disease
Preparation Method.
Background technology
Sour soil disease refers to because a variety of causes causes in soil that acidity is excessive, pH value is too low, so that crop can not health
The soil pathological state of growth.Sour soil disease is treated, is referred to by using certain material so that soil pH value returns to crop can
The acid-base value of growth, while adjustment and promote the physiological growth of crop, and when can make the situation of soil stablize one section relatively
Between even have the trend that gradually takes a turn for the better.Used this material is known as sour soil disease and cures agent.
Soil peracid, including natural and artificial both sides reason.The laterite of nature presence, red earth, red soil, Huang
The great soil group such as earth and dry red soil, soil pH value is less than 7, collectively referred to as acid soil.China tropical and subtropical region it is widely distributed it is each
Plant the acid soil of red or yellow.When ground temperature is high, rainfall is big, annual rainfall is more in more than 1500mm.It is this high temperature and rainy, wet
The characteristics of heat is with season, make the weathering and pedogenesis of soil very strong, the circulation of biological substance is very rapid.Alkali height is not
Saturation, pH is typically in 4.5-6.Iron-aluminium oxide has obvious accumulation simultaneously, and soil acid is thin.It is mainly existing in terms of artificial origin
It is excessive for agricultural fertilizer, cause soil secondary pollution.
The Main Barrier Factors of acid soil are low ph value, free aluminum and exchangeable aluminum excessive concentration (aluminium poison), reduction-state
Manganese excessive concentration (manganese poison), lacks phosphorus, potassium, calcium and magnesium, molybdenum is also lacked sometimes.Its harm under different ecological condition of various obstruction factors
Degree is different, and simply a certain factor plays a leading role sometimes, and is sometimes then the comprehensive function of several factors.For example, in the torrid zone
In some strongly acidic soils of subtropical zone, H+Directly harm can be caused to plant growth, and in pH>In 4 acid soil, aluminium
Poison and scarce phosphorus can occur simultaneously；Also have the toxic action of manganese concurrently under flooding condition.South China acid soil often occurs
The toxic action of aluminium and manganese to various plants, and universal seriously scarce phosphorus phenomenon.
Improving the main method of acid soil at present has：1. farm manure is increased, culture soil fertility：Before crop-planting, with
The organic matter in base fertilizer, increase soil is used sufficient based on farm manure, improves soil permeability, promotes rhizosphere microorganism activity, promotes
Slightly solubility mineral matter element is changed into soluble nutriment in soil, reaches the effect of culture fertility；2. increase lime in good time：It is acid
Field applies lime year by year in site preparation, and annual every mu applies 10 to 40 kilograms, untill being changed into subacidity or neutral soil；
3. kind of the acidproof crop of plant：Often plant the acid resistance crops such as mung bean, rape, buckwheat and paddy rice, by site preparation management make soil activating come
Adjust soil aciditiy；4. mugineic acid soil conditioner：Such as Publication No. CN101935532A Chinese patent application, disclose
The solid kelp residue produced in a kind of sodium alginate production process is the acid soil improving agent of raw material.
Because the complex genesis of sour soil disease is, it is necessary to for the cause of disease, from many aspects comprehensively regulating, correct soil acid-base
While degree, metal poisoning, the fertility of soil is improved, so as to better ensure that the healthy growth of crop.
The content of the invention
In view of the above-mentioned problems, curing agent it is an object of the present invention to provide a kind of sour soil disease.Acid of the present invention
Native disease cures agent, and not only pH value is in 10-12, with preferable buffer capacity to acid and alkali, can adjust soil pH value to 5.8-
7.0, and made the more stable pH value of soil conservation at 3-6 months；Its content of organic matter is high simultaneously, can be in activating soil
Phosphorus, prevents the intoxicating phenomenon of the divalence above metal such as crop aluminium, manganese.In addition, it is also work that sour soil disease of the present invention, which cures agent,
The beneficial active elements such as thing supplement calcium, magnesium.
It is a further object to provide the preparation method that above-mentioned sour soil disease cures agent.
For realizing that the technical scheme of above-mentioned purpose is as follows：
A kind of sour soil disease cures agent, pH=10-12, including potassium carbonate or potassium hydroxide, in addition to alginic acid extract and
Marine alga organic matter, the total amount of the alginic acid extract and marine alga organic matter cures agent gross mass no less than sour soil disease
60%；Wherein, the alginic acid extract is obtained by marine alga by basic hydrolysis, and the marine alga organic matter passes through complex enzyme by marine alga
Hydrolysis is obtained.
It is preferred that, the alginic acid extract is obtained by marine alga through potassium percarbonate or potassium hydroxide water solution.
It is furthermore preferred that the alginic acid extract is prepared by following steps：
1) marine alga raw material is crushed to 1 × 1-4 × 4cm；
2) potassium carbonate or potassium hydroxide solution that concentration is 0.05-0.2mol/L are prepared；
3) by step 1) obtained marine alga and step 2) obtained potassium carbonate or potassium hydroxide solution be according to mass ratio 1:3-
1:11 mixing, obtain mixed liquor；
4) step 3) obtained mixed liquor, stir 1-6 hours at 55-100 DEG C, be cooled to normal temperature, it is dense with mass percent
30%-36% concentrated hydrochloric acid precipitation is spent, the quality mass ratio of the mixed liquor and concentrated hydrochloric acid is 18:1-20:1, it is then centrifuged for point
From sediment drying.
It is further preferred that the alginic acid extract is prepared by following steps：
1) marine alga raw material is crushed to 1 × 1-4 × 4cm；
2) potassium carbonate or potassium hydroxide solution that concentration is 0.05-0.2mol/L are prepared；
3) by step 1) obtained marine alga and step 2) obtained potassium carbonate or potassium hydroxide solution be according to mass ratio 1:6-
1:10 mixing, obtain mixed liquor；
4) step 3) obtained 60-85 DEG C of mixed liquor, stirs 3-5 hours, is cooled to normal temperature, uses mass percent concentration
30%-36% concentrated hydrochloric acid precipitation, the mass ratio of the mixed liquor and concentrated hydrochloric acid is 18:1-20:1 adds, and is then centrifuged for separation,
Sediment drying.
It is preferred that, the complex enzyme of hydrolysis marine alga includes cellulase, alginic acid lyase, pectase and basic protein
Enzyme.
It is preferred that, the marine alga organic matter is prepared by following steps：
1) marine alga is crushed to 1 × 1-4 × 4cm, or directly uses marine algae powder；
2) the compound enzyme aqueous solution of cellulase, alginic acid lyase and pectase is prepared, its cellulase quality hundred
It is 0.1-1% to divide specific concentration, and alginic acid lyase mass percent concentration is 0.1%-0.5%, and pectase mass percent is dense
Spend for 0.1%-1%；
3) by step 1) obtained size-reduced marine alga or marine algae powder and step 2) obtained compound enzyme aqueous solution according to
Mass ratio 1:3-1:11 mixing, adjust and are stirred 1-6 hours at pH=7.5-8.5,35-55 DEG C, obtain enzymolysis liquid；
4) to step 3) alkali protease, the matter of the alkali protease and the enzymolysis liquid are added in obtained enzymolysis liquid
Amount is than being 1:200-1:Stirred 1-6 hours at 500,35-55 DEG C；
5) by step 4) obtained mixture is cooled to normal temperature, and 3000-4000 turns/min, centrifuges 30 minutes, takes supernatant
Drying.
It is furthermore preferred that the marine alga organic matter is prepared by following steps：
1) marine alga is crushed to 1 × 1-4 × 4cm, or directly uses marine algae powder；
2) the compound enzyme aqueous solution of cellulase, alginic acid lyase and pectase is prepared, its cellulase quality hundred
It is 0.1-1% to divide specific concentration, and alginic acid lyase mass percent concentration is 0.1%-0.5%, and pectase mass percent is dense
Spend for 0.1%-1%；
3) by step 1) obtained size-reduced marine alga or marine algae powder and step 2) obtained compound enzyme aqueous solution according to
Mass ratio 1:5-1:8 mixing, adjust and are stirred 2-4 hours at pH=7.5-8.5,35-55 DEG C；
4) to step 3) alkali protease, the matter of the alkali protease and the enzymolysis liquid are added in obtained enzymolysis liquid
Amount is than being 1:200-1:Stirred 2-4 hours at 300,35-55 DEG C；
5) by step 4) obtained mixture is cooled to normal temperature, and 3000-4000 turns/min, centrifuges 30 minutes, takes supernatant
Drying.
Marine alga of the present invention is brown alga that is wild or propagating artificially.It is preferred that, the marine alga is selected from limnetic dry kelp, dry horse
One or more in tail algae and dry undaria pinnitafida.
As one preferred embodiment, the present invention provides a kind of sour soil disease and cures agent, pH=10-12, with the acid
Native disease is cured on the basis of the gross mass of agent, including component and its mass percent be：
The alginic acid extract 20-30%, potassium carbonate or potassium hydroxide 12-22%, calcium oxide 0.5-1.5%, oxidation
Magnesium 0.5-2.0%, phosphatase 11 .0-6.0%, the marine alga organic matter 45-55%, surplus is water.
As a preferred embodiment, the present invention provides a kind of sour soil disease and cures agent, pH=10-12, with described
Sour soil disease cure agent gross mass on the basis of, including component and its mass percent be：
The alginic acid extract 20-30%, potassium carbonate 12-22%, calcium oxide 0.5-1.5%, magnesia 0.5-
2.0%, phosphatase 11 .0-6.0%, the marine alga organic matter 45-55%, surplus is water.
Another object of the present invention, is to provide the preparation method that the sour soil disease cures agent, methods described includes：
According to the mass percent take the alginic acid extract, marine alga organic matter, potassium carbonate, calcium oxide, magnesia,
Phosphoric acid, soluble in water, the mass ratio of dry and water is 1:1-1:2, stir 1-2 hour, 180-190 DEG C drying 30 minutes, i.e.,
.
It is preferred that, dried using roller drier.
A further object of the invention, be to provide above-mentioned sour soil disease cure agent correct sour soil disease, rise soil pH value,
Promote the application in terms of plant growth, increase crop yield.
The following is the detailed description of the present invention：
Sour soil disease provided by the present invention cures agent, belongs to acid soil improvement field.It is with from natural or propagate artificially
The alginic acid extract and marine alga organic substance prepared in marine alga be main component, with potassium carbonate, magnesia, calcium oxide,
The materials such as phosphoric acid compounding is formed.
Compared with prior art, sour soil of the invention disease, which cures agent, has following technique effect：
1. the pH value that sour soil of the present invention disease cures agent is 10-12, can rapidly, effectively adjust the pH value of acid soil to
5.8-7.0；
It is by alginic acid extract, marine alga organic substance, potassium carbonate or potassium hydroxide, phosphorus that 2. sour soil disease of the present invention, which cures agent,
Hydrochlorate and calcium oxide, the composite buffer system of magnesia formation, can make soil keep pH stable at 3-6 months, so as to protect
Demonstrate,prove the soil environment in crop cycle；
3. sour soil disease of the present invention cures agent and contains alginic acid, it can be combined with divalence above metal in soil, so as to avoid
Aluminium that acid soil often occurs, manganese poisoning；
4. sour soil disease of the present invention cures element needed for agent can provide the growth such as calcium activated, magnesium, potassium, phosphorus for crop, so that
Promote the normal growth of crop.
5. the present invention provides the approach of a high added value for the comprehensive utilization of marine alga.
In a word, sour soil of the present invention disease, which cures agent, can not only correct the peracid situation of soil, improve soil aluminium,
Manganese Metal is poisoned, and active element necessary to supplement plant growth, from many aspects comprehensive function, is improved the sour thin of soil, is controlled
More sour soil is sick.
Embodiment
The present invention is further described in detail with reference to embodiment, the embodiment provided is only for explaining
The bright present invention, the scope being not intended to be limiting of the invention.
Experimental method in following embodiments, is conventional method unless otherwise specified.Examination used in following embodiments
Material is tested, is that routine business channel is commercially available unless otherwise specified.
Embodiment 1：A kind of alginic acid extract
Using limnetic dry kelp, dry sargassum and dry undaria pinnitafida as raw material, prepared by following steps：
1) by the limnetic dry kelp of mixing, dry sargassum and dry undaria pinnitafida, it is crushed to 1 × 1-4 × 4cm coarse powder；
2) it is equipped with the solution of potassium carbonate that concentration is 0.15mol/L；
3) by step 1) 1000 kilograms of obtained marine alga coarse powder and step 2) obtained 9000 kilograms of solution of potassium carbonate mixes；
4) stirring 4 hours at 80 DEG C, make step 3) marine alga in obtained mixture degrades under potassium carbonate effect, cooling
To normal temperature, the concentrated hydrochloric acid of 500 kilograms of mass percent concentrations 30% is added, is stirred, is centrifuged, sediment drying is made altogether
500 kilograms of target product.
Embodiment 2：A kind of alginic acid extract
Using the dry sargassum of wild drying and dry undaria pinnitafida as raw material, prepared by following steps：
1) by the dry sargassum of wild drying and dry undaria pinnitafida, it is crushed to 1 × 1-4 × 4cm coarse powder；
2) potassium hydroxide solution that concentration is 0.18mol/L is prepared；
3) by step 1) 1500 kilograms of obtained marine alga coarse powder and step 2) obtained 8500 kilograms of solution of potassium carbonate mixes；
4) stirring 5 hours at 75 DEG C, make step 3) marine alga in obtained mixture degrades under potassium hydroxide effect, cold
But to normal temperature, the concentrated hydrochloric acid of 500 kilograms of mass percent concentrations 30% is added, is stirred, is centrifuged, sediment drying, common system
Obtain 520 kilograms of target product.
Embodiment 3：A kind of alginic acid extract
Dry undaria pinnitafida to propagate artificially is prepared as raw material by following steps：
1) by the dry dry undaria pinnitafida propagated artificially, it is crushed to 1 × 1-4 × 4cm coarse powder；
2) solution of potassium carbonate that concentration is 0.2mol/L is prepared；
3) by step 1) 1500 kilograms of obtained marine alga coarse powder and step 2) obtained 8500 kilograms of solution of potassium carbonate mixes；
4) stirring 3 hours at 60 DEG C, make step 3) marine alga in obtained mixture degrades under potassium carbonate effect, cooling
To normal temperature, the concentrated hydrochloric acid of 500 kilograms of mass percent concentrations 30% is added, is stirred, is centrifuged, sediment drying is produced altogether
530 kilograms of target product is made.
Embodiment 4：A kind of marine alga organic substance
Using limnetic dry kelp, dry sargassum and dry undaria pinnitafida as raw material, it is made by the steps：
1) by the limnetic dry kelp of mixing, dry sargassum and dry undaria pinnitafida, it is crushed to 1 × 1cm coarse powder；
2) 1 kilogram of 2 kilograms of cellulase, 1 kilogram of alginic acid lyase and pectase, stirring are added into 996 kg of water
Uniformly, composite enzyme solution is obtained；
3) to step 1) step 2 is added in obtained 200 kilograms of marine alga coarse powder) obtained 1000 kilograms of composite enzyme solution,
Form stirring enzymolysis 4 hours at mixture, 7.8,45 DEG C of pH value of adjustment；
4) to step 3) stirring enzymolysis 3 hours at 4.8 kilograms of alkali proteases, 50 DEG C are added in obtained enzymolysis liquid；
5) by step 4) obtained mixture is cooled to normal temperature, and 3000-4000 turns/min, centrifuges 30 minutes, takes supernatant
Drying, is made 70 kilograms of target product altogether.
Embodiment 5：A kind of marine alga organic substance
Limnetic dry kelp and dry undaria pinnitafida to propagate artificially are made by the steps as raw material：
1) by the limnetic dry kelp propagated artificially and dry undaria pinnitafida, it is crushed to 1 × 1cm coarse powder；
2) 2 kilograms of 3 kilograms of cellulase, 2 kilograms of alginic acid lyase and pectase, stirring are added into 993 kg of water
Uniformly, composite enzyme solution is obtained；
3) to step 1) 200 kilograms of addition steps 2 of obtained marine alga coarse powder) obtained 1000 kilograms of composite enzyme solution, shape
Stirring enzymolysis 4 hours at resulting mixture, 7.8,45 DEG C of pH value of adjustment；
4) to step 3) stirring enzymolysis 3 hours at 2.4 kilograms of alkali proteases, 50 DEG C are added in obtained enzymolysis liquid；
5) by step 4) obtained mixture is cooled to normal temperature, and 3000-4000 turns/min, centrifuges 30 minutes, takes supernatant
Drying, is made 73 kilograms of target product.
Embodiment 6：A kind of marine alga organic substance
Limnetic dry kelp to propagate artificially is made by the steps as raw material：
1) by the limnetic dry kelp propagated artificially, it is crushed to 1 × 1cm coarse powder；
2) 3 kilograms of 2 kilograms of cellulase, 1 kilogram of alginic acid lyase and pectase, stirring are added into 994 kg of water
Uniformly, composite enzyme solution is obtained；
3) to step 1) 200 kilograms of addition steps 2 of obtained marine alga coarse powder) obtained 1000 kilograms of composite enzyme solution, shape
Stirring enzymolysis 4 hours at resulting mixture, 7.8,45 DEG C of pH value of adjustment；
4) to step 3) stirring enzymolysis 3 hours at 6 kilograms of alkali proteases, 50 DEG C are added in obtained enzymolysis liquid；
5) by step 4) obtained mixture is cooled to normal temperature, and 3000-4000 turns/min, centrifuges 30 minutes, takes supernatant
Drying, is made 71.5 kilograms of target product altogether.
Embodiment 7-12：A kind of sour soil disease cures agent
The composition and mass percent of raw material, are shown in Table 1.
The embodiment 7-12 of table 1 raw material composition (mass percent, %)
The sour soil disease is cured agent and is prepared via a method which：
Agent is cured according to 100 kilograms of sour soil diseases are prepared, by the alginic acid extract, the marine alga organic substance, carbonic acid
Potassium, calcium oxide, magnesia, phosphoric acid are well mixed according to mass percent, are dissolved in 100 kg of water, stirring reaction 1 hour, so
Dried afterwards with 180-190 DEG C of roller drier to 30 minutes, produce target product.
Experimental example 1：Sour soil disease of the present invention cures the compliance test result of agent
Using paddy rice as trial crops, the sour soil disease for demonstrating the present invention cures the effect that sour soil disease is cured in agent.1st, experiment is set
Meter and measure
Trial crops：Paddy rice, basic condition see the table below 2.
The trial crops basic condition of table 2
| Kind | Density (strain/hm2) | Sowing time | The Grain Filling maturity period | Harvest time |
| Ji paddy 31 | 75000 | On May 15th, 14 | On August 08th, 14 | 14 on Augusts, 10 ,-August 14 days |
Test soil regime：Soil ingenious fertility is shown in Table 3.
Table 3 tests Soil ingenious fertility
Experiment sets 5 processing, handles 1 area 0.22hm2, handle 2 area 0.22hm2, handle 3 area 0.12hm2, processing 4
Area 00.12hm2, handle 5 area 0.12hm2。
Sour soil disease prepared by processing 1 --- spray clear water+embodiment of the present invention 7 cures agent.Wherein May 12 is public with 20
Jin/hm2Consumption, June 20 is with 15 kilograms/hm2Consumption, July 12 is with 10 kilograms/hm2Consumption.
Sour soil disease prepared by processing 2 --- spray clear water+and the embodiment of the present invention 8 cures agent.Wherein May 12 is public with 20
Jin/hm2Consumption, June 20 is with 15 kilograms/hm2Consumption, July 12 is with 10 kilograms/hm2Consumption.
Processing 3 --- spray clear water+lime.Wherein May 12 imposed 20 kilograms/hm2Consumption, June 20 is public with 15
Jin/hm2Consumption, July 12 is with 10 kilograms/hm2Consumption.
Processing 4 --- spray clear water+kelp residuea.Wherein May 12 imposed 20 kilograms/hm2Consumption, June 20 is with 15
Kilogram/hm2Consumption, July 12 is with 10 kilograms/hm2Consumption.
Processing 5 --- spray clear water.Wherein May 12 is with 20 kilograms/hm2Consumption, June 20 is with 15 kilograms/hm2's
Consumption, July 12 is with 10 kilograms/hm2Consumption.
a:Kelp residue is prepared via a method which：
Dry sea-tangle is soaked, the sea-tangle segment after water suction, is put into digester, adds 0.15mol/L solution of potassium carbonate
(potassium carbonate quality is the 12% of dry sea-tangle quality), is warming up to 75 DEG C, adds the formaldehyde of dry sea-tangle quality 10% or so, make formaldehyde
It is complexed, stirs 2-3 hours with the phenols in sea-tangle, albumen, completes sea-tangle digestion process.Filtering, filter residue is washed with water 2 times, dries,
Obtain kelp residue.
Single fringe paddy grain number, single fringe paddy quality, rice yield, 4 aspects of planting soil pH value are compared, its
Middle assay method is：
Single fringe paddy grain number, single fringe paddy quality assay method：Multidraw, avoids side row, using diagonal sampling side
Method, chooses representative sampling point 5, and each sampling point takes 10 paddy, determined respectively, calculates average value.
Rice yield assay method：Experiment plot is individually harvested, individually meter production, is converted into a hectare yield.
Planting soil pH value is detected：Experimental field 15cm depths soil is taken, 10% solution ph is determined with pH value meter.
2nd, test results and analysis
Influence of the different disposal to single fringe paddy grain number, single fringe paddy quality is shown in Table 4.
Single fringe paddy grain number of the different disposal of table 4, single fringe paddy quality
Understand from the above, processing 1 (sour soil disease prepared by spray clear water+embodiment of the present invention 7 cures agent), processing 2
(sour soil disease prepared by spray clear water+embodiment of the present invention 8 cures agent), 3 (spray clear waters+lime) of processing, processing 4 (are sprayed clear
Water+kelp residue) compared with handling 5 (spray clear waters), single fringe paddy quality increases by 4.21 grams, 3.04 grams, 1.1 grams and 1.3 respectively
Gram, increment rate is respectively 18.3%, 13.2%, 4.78% and 5.65%；Single fringe paddy grain number increases by 25,16,5 respectively
With 7, increment rate is respectively 20%, 12.8%, 4% and 5.6%.On the basis of handling 5 rice yield, different disposal is to rice
The influence of paddy yield is shown in Table 5.
The rice yield of the different disposal of table 5
| Processing | Yield (kg/hm2) | Increase production (kg/hm2) | Rate of growth (%) |
| 1 | 4812 | 812 | 20.3 |
| 2 | 4525 | 525 | 13.1 |
| 3 | 4190 | 190 | 4.75 |
| 4 | 4220 | 220 | 5.5 |
| 5 | 4000 | - | - |
Understand from the above, processing 1, processing 2, processing 3, processing 4 are compared with processing 5, rice yield increase difference
812kg/hm2、525kg/hm2、190kg/hm2And 220kg/hm2, rate of growth is respectively 20.3%, 13.1%, 4.75% and
5.5%.
The above results show, and clear water, or are compared with lime, kelp residue, prepared by the embodiment of the present invention 7 and 8
Sour soil disease, which cures agent, can significantly improve single fringe paddy quality and single fringe paddy grain number, so as to play the effect significantly increased production.
Compared with the sour soil disease of the present invention cures agent, lime, kelp residue only have very weak production-increasing function.
Influence of the different disposal to soil pH value is shown in Table 6.
The soil pH value of the different disposal of table 6
Understand from the above：1) processing 1, processing 2, processing 3, processing 4 are compared with processing 5, different times, planting soil
PH value regulation most notably handles 1, is processing 2 successively, is processing 4, processing 3 again；And compared with processing 5, lime, sea
It is only capable of playing the pH value of soil very faint adjustment effect with slag, it is impossible to correct the problem of soil aciditiy is excessive.2) applying
The time (during namely as growth) of nearly one month after being applied with period and last time, processing 1 and 2 can make soil
The pH value of earth maintains suitable scope.Illustrate that the sour soil disease of the present invention cures agent and can continue to play the work for correcting soil peracid
With.
3rd, conclusion (of pressure testing)
Lime is conventional acid soil improving agent, and kelp residue is also used as acid soil improving agent in the prior art,
A kind of acid soil as disclosed in the Chinese invention patent application in publication number CN101935532A (publication date on January 5th, 2011)
Earth modifying agent.This result of the test shows, lime, kelp residue correct soil peracid, the effect that increases crop yield is faint.With stone
Ash, kelp residue compare, and sour soil disease of the present invention, which cures agent, can substantially adjust the pH value of simultaneously stable soil, additionally it is possible to significantly
Improve crop yield.
In a word, agent, pH=10-12, including potassium carbonate or potassium hydroxide, oxidation are cured the invention provides a kind of sour soil disease
Calcium, magnesia, phosphoric acid, in addition to alginic acid extract and marine alga organic matter, the alginic acid extract and marine alga organic matter
Total content is no less than 60%；Wherein, the alginic acid extract is obtained by marine alga by basic hydrolysis, and the marine alga organic matter is by sea
Algae obtains by complex enzyme for hydrolyzing.Sour soil disease of the present invention cures agent with compound Multiple components, not only acts as lasting regulation
The effect of soil pH value, and the growth of crop can be remarkably promoted, play a part of increasing both production and income.
Claims (10)
1. a kind of sour soil disease cures agent, pH=10-12, including potassium carbonate or potassium hydroxide, it is characterised in that also including alginic acid
Extract and marine alga organic matter, the total amount of the alginic acid extract and marine alga organic matter are total no less than sour soil disease healing agent
The 60% of quality；Wherein, the alginic acid extract is obtained by marine alga through potassium percarbonate or potassium hydroxide water solution, passes through following step
It is rapid to prepare：
1) marine alga raw material is crushed to 1 × 1-4 × 4cm；
2) potassium carbonate or potassium hydroxide solution that concentration is 0.05-0.2mol/L are prepared；
3) by step 1) obtained marine alga and step 2) obtained potassium carbonate or potassium hydroxide solution be according to mass ratio 1:3-1:11
Mixing, obtains mixed liquor；
4) step 3) obtained mixed liquor, stirs 1-6 hours at 55-100 DEG C, is cooled to normal temperature, uses mass percent concentration
30%-36% concentrated hydrochloric acid precipitation, the mass ratio of the mixed liquor and concentrated hydrochloric acid is 18:1-20:1, it is then centrifuged for separation, precipitation
Thing drying；
The marine alga organic matter is obtained by marine alga by complex enzyme for hydrolyzing, hydrolysis marine alga the complex enzyme include cellulase,
Alginic acid lyase, pectase and alkali protease；The marine alga organic matter is prepared by following steps：
1) marine alga is crushed to 1 × 1-4 × 4cm, or directly uses marine algae powder；
2) the compound enzyme aqueous solution of cellulase, alginic acid lyase and pectase is prepared, its cellulase mass percent
Concentration is 0.1-1%, and alginic acid lyase mass percent concentration is 0.1%-0.5%, and pectase mass percent concentration is
0.1%-1%；
3) by step 1) obtained size-reduced marine alga or marine algae powder and step 2) obtained compound enzyme aqueous solution is according to quality
Than 1:3-1:11 mixing, adjust and are stirred 1-6 hours at pH=7.5-8.5,35-55 DEG C, obtain enzymolysis liquid；
4) to step 3) alkali protease, the mass ratio of the alkali protease and the enzymolysis liquid are added in obtained enzymolysis liquid
For 1:200-1:Stirred 1-6 hours at 500,35-55 DEG C；
5) by step 4) obtained mixture is cooled to normal temperature, and 3000-4000 turns/min, centrifuges 30 minutes, takes supernatant to dry
Produce.
2. sour soil disease according to claim 1 cures agent, it is characterised in that the alginic acid extract passes through following steps
Prepare：
1) marine alga raw material is crushed to 1 × 1-4 × 4cm；
2) potassium carbonate or potassium hydroxide solution that concentration is 0.05-0.2mol/L are prepared；
3) by step 1) obtained marine alga and step 2) obtained potassium carbonate or potassium hydroxide solution be according to mass ratio 1:6-1:10
Mixing, obtains mixed liquor；
4) step 3) obtained mixed liquor, at 60-85 DEG C, stirs 3-5 hours, is cooled to normal temperature, uses mass percent concentration
30%-36% concentrated hydrochloric acid precipitation, the mass ratio of the mixed liquor and concentrated hydrochloric acid is 18:1-20:1, it is then centrifuged for separation, precipitation
Thing drying.
3. sour soil disease according to claim 1 cures agent, it is characterised in that the marine alga organic matter passes through following steps system
It is standby：
1) marine alga is crushed to 1 × 1-4 × 4cm, or directly uses marine algae powder；
2) the compound enzyme aqueous solution of cellulase, alginic acid lyase and pectase is prepared, its cellulase mass percent
Concentration is 0.1-1%, and alginic acid lyase mass percent concentration is 0.1%-0.5%, and pectase mass percent concentration is
0.1%-1%；
3) by step 1) obtained size-reduced marine alga or marine algae powder and step 2) obtained compound enzyme aqueous solution is according to quality
Than 1:5-1:8 mixing, adjust and are stirred 2-4 hours at pH=7.5-8.5,35-55 DEG C, obtain enzymolysis liquid；
4) to step 3) alkali protease, the mass ratio of the alkali protease and the enzymolysis liquid are added in obtained enzymolysis liquid
For 1:200-1:Stirred 2-4 hours at 300,35-55 DEG C；
5) by step 4) obtained mixture is cooled to normal temperature, and 3000-4000 turns/min, centrifuges 30 minutes, takes supernatant to dry
Produce.
4. sour soil according to any one of claim 1 to 3 disease cures agent, it is characterised in that the marine alga to be wild or
The brown alga propagated artificially.
5. sour soil disease according to claim 4 cures agent, it is characterised in that the marine alga is selected from limnetic dry kelp, dry horse hair
One or more in algae and dry undaria pinnitafida.
6. sour soil disease according to any one of claim 1 to 3 cures agent, it is characterised in that pH=10-12, with described
Sour soil disease cure agent gross mass on the basis of, including component and its mass percent be：
The alginic acid extract 20-30%, potassium carbonate or potassium hydroxide 12-22%, calcium oxide 0.5-1.5%, magnesia
0.5-2.0%, phosphatase 11 .0-6.0%, the marine alga organic matter 45-55%, surplus is water.
7. sour soil disease according to any one of claim 1 to 3 cures agent, it is characterised in that pH=10-12, with described
Sour soil disease cure agent gross mass on the basis of, including component and its mass percent be：
The alginic acid extract 20-30%, potassium carbonate 12-22%, calcium oxide 0.5-1.5%, magnesia 0.5-2.0%, phosphorus
Sour 1.0-6.0%, the marine alga organic matter 45-55%, surplus is water.
8. sour soil disease cures the preparation method of agent described in claim 6 or 7, methods described includes：
The alginic acid extract, marine alga organic matter, potassium carbonate, calcium oxide, magnesia, phosphorus are taken according to the mass percent
Acid, soluble in water, the mass ratio of dry and water is 1:1-1:2, stir 1-2 hours, 180-190 DEG C dries 30 minutes, produces.
9. preparation method according to claim 8, it is characterised in that dried using roller drier.
10. sour soil disease cures agent, or preparation method system according to claim 8 or claim 9 any one of claim 1 to 7
Standby obtained sour soil disease cures agent, in terms of correcting sour soil disease, rise soil pH value, promoting plant growth, increase crop yield
Application.
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