CN110028972A - A kind of soil conditioner and its preparation method and application - Google Patents
A kind of soil conditioner and its preparation method and application Download PDFInfo
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- CN110028972A CN110028972A CN201910280285.1A CN201910280285A CN110028972A CN 110028972 A CN110028972 A CN 110028972A CN 201910280285 A CN201910280285 A CN 201910280285A CN 110028972 A CN110028972 A CN 110028972A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2101/00—Agricultural use
Abstract
The present invention provides a kind of soil conditioners, the soil conditioner includes: 30-40 weight % modification infusorial earth, 30-40 weight % calcium salt, 10-20 weight % humic acid, 5-10 weight % magnesium salts, 2-5 weight % ammonium molybdate, 3-10 weight % boric acid and 10-20 weight % complex micro organism fungicide, wherein, the complex micro organism fungicide contains 2 × 108‑1×109Cuf/ grams of composite microbial bacteria and the composite microbial bacteria include Bacillus cercus, bacillus subtilis, Trichoderma and phosphate solubilizing bacteria.The present invention also provides the preparation method of the soil conditioner and purposes.Soil conditioner of the invention can significantly reduce heavy metal in soil content, improve yield.
Description
Technical field
The present invention relates to a kind of soil conditioners and its preparation method and application.
Background technique
Soil quality is directly related to the sustainable development of China's agricultural.Due to excessive application chemical fertilizer and other factors, such as
Heavy metals etc. after mining, in the past period, China's assessing index is serious.First appear as soil acidification
Seriously, south China soil acidity or alkalinity is only 4 or so, and soil acidification can improve soil aciditiy, accelerates loss of soil nutrient, suppression
Fabrication growth even results in plant death.According to related data, China's acid soil gross area accounts for about cultivated area
21%.Next shows as heavy metal content in soil and seriously increases, according to conservation data: the total point exceeding standard rate of national soil is
16.1%, about 20,000,000 squares hundred meters of cultivated area polluted by Cd, Hg, As, Cr, Pb account for 1/5 all to plough, it is annual because
Heavy metal pollution and about 12,000,000 tons of the grain lost, have seriously affected the grain in China by 20,000,000,000 yuan of direct economic loss or more
Food safety in production.Soil once can not only be endangered the growth and development of plant by heavy metal pollution, but also will affect agricultural product
Quality, and human health is jeopardized by food chain.For example, the biogenic migration of Cd is strong, have to humans and animals biggish
The effects of carcinogenic, teratogenesis, mutagenesis.
It is possible, firstly, to improve soil acidity by liming, although such method has to soil quality is improved
Certain effect, but a large amount of or chronic administration lime can not only cause soil hardening to form the hardened field of lime, but also can draw
The dysequilibrium of soil calcium, potassium, magnesium elements is played, so as to cause the underproduction.In addition, liming is also possible to draw on acid soil
The co-precipitation of magnesium and aluminium hydrated oxide is played, the activity and plant availability of soil liquid intermediate ion are reduced.
Calcium silicate fertilizer is the multi-element fertilizer of a kind of nitrogenous, phosphorus, potassium, silicon, calcium, iron, aluminium, magnesium, and aqueous solution is in alkalinity.Application
Calcium silicate fertilizer can significantly improve acid soil, while can balance plant nutrient, and lodging-prevention, Accelerate bloom is solid, and enhancing crop is anti-
Drought, cold-resistant, diseases and insect pests resistance improve the yield and quality of plant.
Secondly, the common method for administering heavy metal has object both at home and abroad in order to reduce and eliminate the harm of heavy metal-polluted soil
Logos, chemical method, Agro-ecological Engineering method, biological restoration etc..The biologically effective of heavy metal can be effectively reduced in application modifying agent
Property, to mitigate its harm to ecological environment.The changeable soil weight such as application of organic fertilizers, lime, phosphate fertilizer, siliceous fertilizer and potash fertilizer
Metal form reduces validity, reduces absorption of the crop to heavy metal.For example, calcium silicate fertilizer can promote soil pH, it is effectively reduced
Brown Rice Cd content, and apply potassium silicon fertilizer and not only met demand of the rice to potassium, but also reduce rice each position on the ground
Accumulation to heavy metal.
In addition, soil conditioner, which refers to, is added in soil the physics for being used to improve soil, chemistry and/or biological character
Material.Soil texture can be improved by applying soil conditioner, reduce soil alkaline harm, adjusting soil acidity or alkalinity, improvement
Soil water regime or repairing polluted soil etc..
To the R and D starting of soil conditioner than later, existing type mainly includes slag by-product category in China
The calcium products soil conditioner such as the roasted products such as soil conditioner, potassium feldspar or dolomite soil conditioner and conch meal.This
A little soil conditioner ingredients are simple, and function is relatively single, and especially relatively weak to heavy metal adsorption, effect of increasing production is not
Significantly.
Summary of the invention
Therefore, the purpose of the present invention is to be directed to shortcoming and defect existing in the prior art, a kind of soil conditioner is provided
And its preparation method and application.
What the object of the invention was achieved through the following technical solutions.
On the one hand, the present invention provides a kind of soil conditioners, and the soil conditioner includes: 30-40 weight % is modified
Diatomite, 30-40 weight % calcium salt, 10-20 weight % humic acid, 5-10 weight % magnesium salts, 2-5 weight % ammonium molybdate, 3-10
Weight % boric acid and 10-20 weight % complex micro organism fungicide, wherein the complex micro organism fungicide contains 2 × 108-1×
109Cuf/ grams of composite microbial bacteria and the composite microbial bacteria include Bacillus cercus (Bacillus
Cereus), bacillus subtilis (Bacillus subtilis), Trichoderma (Trichodermaspp) and phosphate solubilizing bacteria
(phosphate-solubilizing bacteria)。
The soil conditioner provided according to the present invention, wherein the specific surface area of the modification infusorial earth is 800-
1600m2/g.In some embodiments, the specific surface area of the modification infusorial earth is 800-1200m2/ g, and in some realities
It applies in scheme as 1000-1200m2/g。
The soil conditioner provided according to the present invention, wherein the modification infusorial earth contains the SiO of 75-95 weight %2。
In some embodiments, the modification infusorial earth contains the SiO of 80-90 weight %2；And in some embodiments, institute
State the SiO that modification infusorial earth contains 85-90 weight %2。
The soil conditioner provided according to the present invention, wherein the partial size of the modification infusorial earth is 0.1-0.25mm.
The soil conditioner provided according to the present invention, wherein the modification infusorial earth is via the side included the following steps
Made from method: carrying out pickling to diatomite using sulfuric acid, then neutralize；And by obtained product at 800 DEG C -1000 DEG C
Roasting.
The soil conditioner provided according to the present invention, wherein the example of suitable calcium salt includes but is not limited to: calcium carbonate,
Calcium superphosphate and double superhosphate.
The soil conditioner provided according to the present invention, wherein the example of suitable magnesium salts includes but is not limited to: magnesium sulfate,
Magnesium chloride and magnesium nitrate.
The soil conditioner provided according to the present invention, wherein the complex micro organism fungicide includes 0.6 × 108-0.8×
108Cuf/ grams of Bacillus cercus, 1 × 108-1.35×108Cuf/ grams of bacillus subtilis, 0.25 × 108-0.35×
108Cuf/ grams of Trichoderma and 0.035 × 108-0.045×108Cuf/ grams of phosphate solubilizing bacteria.
The soil conditioner provided according to the present invention, wherein the complex micro organism fungicide also includes 0.2-0.5 weight
Measure the seawood meal of %.
On the other hand, the present invention provides a kind of preparation methods of soil conditioner, wherein the preparation method includes:
(1) by modification infusorial earth, calcium salt, magnesium salts, ammonium molybdate, boric acid and humic acid mixing granulation；With
(2) complex micro organism fungicide is added to coat particle obtained in the step (1).
The preparation method provided according to the present invention, wherein prepare the modified diatom via method comprising the following steps
Soil:
(11) pickling is carried out to diatomite using sulfuric acid, then neutralized；And
(12) product obtained in the step (11) is roasted at 800 DEG C -1000 DEG C.
The preparation method provided according to the present invention, wherein the temperature of pickling described in the step (11) is 60-90 DEG C,
Preferably 75-85 DEG C.
The preparation method provided according to the present invention, wherein the concentration of sulfuric acid described in the step (11) is 50-80 weight
Measure %, preferably 60-70 weight %.
The preparation method provided according to the present invention, wherein the liquid of sulfuric acid and the diatomite described in the step (11)
Gu than being 3-6:1L/kg, preferably 4-5:1L/kg.
The preparation method provided according to the present invention, wherein the time of pickling described in the step (11) is 1-5 hours,
Preferably 2-3 hours, such as 2.5 hours.
The preparation method provided according to the present invention, wherein calcining time is 1-5 hours in the step (12), preferably
2-3 hours.
The preparation method provided according to the present invention, wherein the partial size of particle obtained is 1-5mm in the step (1),
Preferably 1-2mm.
The preparation method provided according to the present invention, wherein institute in granulation described in the step (1) and the step (2)
Stating cladding is carried out in pelletizer.
Another aspect, it is micro in the raising soil organism, supplement soil that the present invention also provides the soil conditioners
Element, administering hardened and promotion, the soil is porous, clears up pesticide and chemical residual, absorption and curing heavy metal, improvement acid soil
Purposes in earth, improvement alkaline land soil or improvement continuous cropping soil.
The purposes provided according to the present invention, wherein the dosage of the soil conditioner is 40-150kg/ mus.
The present invention at least has the advantage that
(1) soil conditioner provided by the invention can adsorb heavy metal, significantly reduce heavy metal in soil.Particularly,
It being not intended to be restricted by theory, it is believed that the modification infusorial earth used in soil conditioner of the invention has high specific surface area, and
With strong chemisorption and ion-exchange capacity.Thus, it is possible to significantly reduce the content of beary metal in soil.
For example, cadmium element in soil can decline 60% or so, mercury and can decline after applying soil conditioner of the invention
50% or so, arsenic, which can decline 50% or so, chromium and can decline 50% or so, lead, can decline 50% or so, and cadmium contains in crop products
Amount can reduce by 90% or so.
(2) soil conditioner provided by the invention uses complex micro organism fungicide, and such complex micro organism fungicide can be with
The elements such as the nitrogen N, the phosphorus P that are deposited in activating soil, degrade soil in herbicide and pesticide residual, can plan as a whole a variety of in soil
Middle microelement reduces pest and disease damage for plant absorption；It can effectively improve the photosynthesis of plant simultaneously, improve crops and increase
It produces.Further, by being applied in combination with specific modification infusorial earth, complex micro organism fungicide class can plant to a deeper level
Enter inside soil granular, survive efficiency and significantly improve, and thus significant reinforces the above effect.
For example, cereal crops are averagely increased production up to 15% or more, and fruits and vegetables volume increase is special using soil conditioner of the invention
It is not shallot volume increase up to 90% or more.
(3) enhance crop resistance: Resistant, resistant to lodging, drought resisting, cold-resistant, salt resistance.
(4) it is strong to be conducive to well developed root system: improving nutrient absorption capability, immunity, resistance against disadvantage.Particularly, it is undesirable to by
Theory limitation, it is believed that, added humic acid can improve soil, improve the soil organism, promote crop root development.
(5) chemical fertilizer and/or pesticide dosage are reduced, nitrogenous fertilizer and phosphate fertilizer utilization efficiency is improved, can reduce fertilizer application amount 20%
Left and right.
(6) in addition, soil conditioner provided by the invention can also promote to promote early ripening of the crops, quality of agricultural product is improved
And safety.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described reality
Applying example is only a part of the embodiment of the present invention, instead of all the embodiments.Below at least one exemplary embodiment
Description only actually be it is illustrative, never as to of the invention and its application or any restrictions used.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Embodiment 1
1. at 80 ± 5 DEG C, at liquid-solid ratio 5:1, using concentration for the sulfuric acid of 60 weight % is 0.1mm's to partial size
Diatomite pickling 2.5 hours, then separation uses concentration for the washing of the NaOH aqueous solution of 1mol/L, neutralizes, obtains sour modification
Diatomite.
2. the modified diatomite of acid will be obtained to roast 2 hours at 900 DEG C, modification infusorial earth is obtained.
It is 1130m using the specific surface area of scanning electron microscopy measurement modification infusorial earth2/g.Pass through x-ray fluorescence
Spectral measurement SiO2Content, be 89.5 weight %.
3 firstly, modified diatom made from 40 parts by weight steps 2 is added into pelletizer under the revolving speed of 50 turns/min
Soil, the calcium carbonate of 30 parts by weight, the humic acid of 10 parts by weight, the magnesium chloride of 5 parts by weight, the ammonium molybdate of 2 parts by weight and 3 weight
Part boric acid is granulated.Then, 10 parts by weight complex micro organism fungicides are added to be coated, obtain the soil tune that partial size is 1mm
Manage agent；Wherein, complex micro organism fungicide includes 0.8 × 108Cuf/ grams of Bacillus cercus, 1 × 108Cuf/ grams of withered grass bud
Spore bacillus, 0.25 × 108Cuf/ grams of Trichoderma, 0.045 × 108The seawood meal of cuf/ grams of phosphate solubilizing bacteria and 0.2 weight %.
Embodiment 2
1. at 80 ± 5 DEG C, at liquid-solid ratio 4:1, using concentration for the sulfuric acid of 70 weight % is 0.25mm's to partial size
Diatomite pickling 2.5 hours, then separation uses concentration for the washing of the NaOH aqueous solution of 1mol/L, neutralizes, obtains sour modification
Diatomite.
2. obtained sour modification infusorial earth is roasted 2 hours at 1000 DEG C, modification infusorial earth is obtained.
It is 1025m using the specific surface area of scanning electron microscopy measurement modification infusorial earth2/g.Pass through x-ray fluorescence
Spectrum analysis measures SiO2Content, be 86.7 weight %.
3 firstly, modified diatom made from 30 parts by weight steps 2 is added into pelletizer under the revolving speed of 50 turns/min
Soil, the calcium carbonate of 30 parts by weight, the humic acid of 10 parts by weight, the magnesium chloride of 5 parts by weight, the ammonium molybdate of 2 parts by weight and 3 weight
Part boric acid is granulated.Then, 20 parts by weight complex micro organism fungicides are added to be coated, obtain the soil tune that partial size is 2mm
Manage agent；Wherein, complex micro organism fungicide includes 0.6 × 108Cuf/ grams of Bacillus cercus, 1.35 × 108Cuf/ grams withered
Careless bacillus, 0.35 × 108Cuf/ grams of Trichoderma, 0.035 × 108The seaweed of cuf/ grams of phosphate solubilizing bacteria and 0.5 weight %
Powder.
Using
1. 2014 and 2015, the continuous 2 years cadmium pollution rice in Heilongjiang Province, the village San Daogang, the town Yilan County San Daogang
Field delimit 20 mu, wherein 10 mu of conduct soil conditioner experimental plots, 5 mu field, 5 mu of conduct calcium silicate fertilizers are tested as a control test
Field.Apply soil conditioner prepared by embodiment 1 according to 40kg/ mus of amount to soil conditioner experimental plot, is tested to calcium silicate fertilizer
Field applies the I type calcium silicate fertilizer (SiO for being purchased from Shenzhou City, Hebei province Zhong Keqirun bio-organic fertilizer factory according to 40kg/ mus of amount2
>=50%, CaO >=44%, effective silicon >=24.4%), check experiment field does not apply, and plants lucky round-grained rice 88 (super hybridization rice No.1) water
Rice.
The results show that with check experiment field, 524kg/ mus of the per mu yield in soil conditioner experimental plot, volume increase 8%, in rice
Cadmium content reduces 91%, meets the safety index of national agricultural product, and heavy metal and pesticide residue are not detected.In addition, for silicon
Calcareous fertilisers experimental plot, per mu yield are 512kg/ mus, and rice interval content reduces 46%.
2. delimiting 10 mu of progress repairing tests in Shandong Dezhou industrial pollution area.With 50kg/ mus of dosage by embodiment 2
The soil conditioner of preparation is turned over 2 times, ploughed depth 10cm to upper soll layer.After 1 month, repeat to apply one in the same amount
It is secondary, and turn over 2 times, it places 1 month.Content of beary metal before and after applying soil conditioner is measured using lixiviation process, as a result such as table 1
It is shown.
Table 1 applies the content of beary metal of soil before and after soil conditioner
| Cd(ppm) | Hg(ppm) | As(ppm) | Cr(ppm) | Pb(ppm) | |
| Before application | 6.5 | 9.8 | 200 | 1560 | 1250 |
| After application | 2.3 | 4.0 | 96 | 795.6 | 637.5 |
| Reduction ratio | 65% | 59% | 52% | 49% | 49% |
3. 2014, setting up experimental plot in Shulan City, Jilin Province, 15 mu delimited altogether, wherein 10 mu are used as soil conditioner
Experimental plot, 5 mu of fields as a control test.Apply prepared by embodiment 1 according to 60 kg/ mus of amount to soil conditioner experimental plot
Soil conditioner, check experiment field do not apply, the handsome corn of gold of the plantation purchased from Beijing Baofeng seed Co., Ltd.
Mid-term is tested, corn root developmental state is compared, it is vigorous using the plot root development of soil conditioner.In addition,
After soil conditioner, yield is 629kg/ mus, volume increase 15%.
4. 2015, in Gansu Province Jingyuan County shallot experimental plot test, 10 mu delimited altogether, wherein 5 mu are used as soil tune
Manage agent experimental plot, 5 mu of fields as a control test.Apply embodiment 1 according to 80kg/ mus of amount to soil conditioner experimental plot to make
Standby soil conditioner, check experiment field do not apply, and plant Zhengning shallot.
The results show that using the resistance of shallot after soil conditioner, especially Resistant, resistant to lodging, drought resisting, cold-resistant, anti-
Salt is good, and increases production 90%.
5. 2017, being tested in the township Nian Feng, Yichun of Heilongjiang Province Tieli City rice test field, delimiting 15 mu, wherein 10 mu of works
For soil conditioner experimental plot, 5 mu of fields as a control test.Apply in fact to soil conditioner experimental plot according to 40kg/ mus of amount
The soil conditioner of the preparation of example 1 is applied, check experiment field does not apply, and plants lucky round-grained rice 88 (super hybridization rice No.1) rice, volume increase
15.85%.
6. 2016, setting up experimental plot in Shulan City, Jilin Province, 10 mu delimited altogether, wherein 5 mu are used as soil conditioner
Experimental plot, 5 mu of fields as a control test, the handsome corn of gold of the plantation purchased from Beijing Baofeng seed Co., Ltd, wherein embodiment 1
The soil conditioner of preparation, nitrogenous fertilizer, phosphate fertilizer and herbicide dosage are as shown in table 2.
2 soil conditioner of table, nitrogenous fertilizer, phosphate fertilizer and herbicide dosage
| Soil conditioner | Urea | Diammonium phosphate (DAP) | Alachlor | |
| Check experiment field | 0 | 20kg/ mus | 40kg/ mus | 200ml/ mus |
| Soil conditioner experimental plot | 40kg/ mus | 16kg/ mus | 36kg/ mus | 150ml/ mus |
The results show that after soil conditioner, pest and disease damage is smaller both without obvious weeds, volume increase 3%.Thus may be used
Know, nitrogenous fertilizer and phosphate fertilizer utilization efficiency can be improved after applying soil conditioner, even if reducing fertilizer application amount 20% or so,
Yield still increased.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of soil conditioner, the soil conditioner includes: 30-40 weight % modification infusorial earth, 30-40 weight % calcium
Salt, 10-20 weight % humic acid, 5-10 weight % magnesium salts 2-5 weight % ammonium molybdate, 3-10 weight % boric acid and 10-20 weight
Measure % complex micro organism fungicide, wherein the complex micro organism fungicide contains 2 × 108-1×109Cuf/ grams of complex microorganism
Bacterium and the composite microbial bacteria include Bacillus cercus, bacillus subtilis, Trichoderma and phosphate solubilizing bacteria.
2. soil conditioner according to claim 1, wherein the specific surface area of the modification infusorial earth is 800-1600m2/
G, preferably 800-1200m2/ g, more preferably 1000-1200m2/g；
Preferably, the modification infusorial earth contains the SiO of 75-95 weight %2, the preferably SiO of 80-90 weight %2, more preferably
The SiO of ground 85-90 weight %2；
Preferably, the partial size of the modification infusorial earth is 0.1-0.25mm；
Preferably, the modification infusorial earth is via made from method comprising the following steps: being carried out using sulfuric acid to diatomite
Then pickling neutralizes；And obtained product is roasted at 800 DEG C -1000 DEG C.
3. soil conditioner according to claim 1 or 2, wherein the calcium salt is selected from calcium carbonate, calcium superphosphate and again
One of calcium superphosphate is a variety of；
Preferably, the magnesium salts is selected from one of magnesium sulfate, magnesium chloride and magnesium nitrate or a variety of.
4. soil conditioner according to any one of claim 1 to 3, wherein the complex micro organism fungicide includes 0.6
×108-0.8×108Cuf/ grams of Bacillus cercus, 1 × 108-1.35×108Cuf/ grams of bacillus subtilis, 0.25 ×
108-0.35×108Cuf/ grams of Trichoderma and 0.035 × 108-0.045×108Cuf/ grams of phosphate solubilizing bacteria；
Preferably, the complex micro organism fungicide also includes the seawood meal of 0.2-0.5 weight %.
5. the preparation method of soil conditioner described in any one of Claims 1-4, wherein the preparation method includes:
(1) by modification infusorial earth, calcium salt, magnesium salts, ammonium molybdate, boric acid and humic acid mixing granulation；With
(2) complex micro organism fungicide is added to coat particle obtained in the step (1).
6. preparation method according to claim 5, wherein prepare the modified diatom via method comprising the following steps
Soil:
(11) pickling is carried out to diatomite using sulfuric acid, then neutralized；And
(12) product obtained in the step (11) is roasted at 800 DEG C -1000 DEG C.
7. preparation method according to claim 6, wherein the temperature of pickling described in the step (11) is 60-90 DEG C,
Preferably 75-85 DEG C；
Preferably, the concentration of sulfuric acid described in the step (11) is 50-80 weight %, preferably 60-70 weight %；
Preferably, the liquid-solid ratio of sulfuric acid described in the step (11) and the diatomite is 3-6:1L/kg, preferably 4-5:
1L/kg；
Preferably, the time of pickling described in the step (11) is 1-5 hours, preferably 2-3 hours, such as 2.5 hours；
Preferably, calcining time is 1-5 hours, preferably 2-3 hours in the step (12).
8. preparation method according to claim 6 or 7, wherein the partial size of particle obtained is 1- in the step (1)
5mm, preferably 1-2mm；
Preferably, granulation described in the step (1) and cladding described in the step (2) are carried out in pelletizer.
9. soil conditioner described in any one of Claims 1-4 is improving the soil organism, is supplementing micro member in soil
Element, administer it is hardened and promote the soil is porous, resolution pesticide and chemical residual, absorption and curing heavy metal, improve acid soil, change
Purposes in good alkaline land soil or improvement continuous cropping soil.
10. purposes according to claim 9, wherein the dosage of the soil conditioner is 40-150kg/ mus.
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| CN111557214A (en) * | 2020-07-01 | 2020-08-21 | 晟丰(烟台)农业科技有限公司 | Planting method for soil improvement |
| CN114380642A (en) * | 2022-01-29 | 2022-04-22 | 哈尔滨皮加诺生物科技有限公司 | Microbial agent composition and application thereof in crop cultivation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111557214A (en) * | 2020-07-01 | 2020-08-21 | 晟丰(烟台)农业科技有限公司 | Planting method for soil improvement |
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| CN114380642A (en) * | 2022-01-29 | 2022-04-22 | 哈尔滨皮加诺生物科技有限公司 | Microbial agent composition and application thereof in crop cultivation |
| CN114380642B (en) * | 2022-01-29 | 2022-09-20 | 哈尔滨皮加诺生物科技有限公司 | Microbial agent composition and application thereof in crop cultivation |
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