CN107032931A - One kind changes sour auxotype composite soil conditioner and its application - Google Patents
One kind changes sour auxotype composite soil conditioner and its application Download PDFInfo
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- CN107032931A CN107032931A CN201710398720.1A CN201710398720A CN107032931A CN 107032931 A CN107032931 A CN 107032931A CN 201710398720 A CN201710398720 A CN 201710398720A CN 107032931 A CN107032931 A CN 107032931A
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- 239000003516 soil conditioner Substances 0.000 title claims abstract description 56
- 239000002131 composite material Substances 0.000 title claims abstract description 52
- 239000002689 soil Substances 0.000 claims abstract description 69
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004113 Sepiolite Substances 0.000 claims abstract description 10
- 235000019355 sepiolite Nutrition 0.000 claims abstract description 10
- 229910052624 sepiolite Inorganic materials 0.000 claims abstract description 10
- 239000010451 perlite Substances 0.000 claims abstract description 9
- 235000019362 perlite Nutrition 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims abstract description 8
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000001506 calcium phosphate Substances 0.000 claims abstract description 6
- 239000004202 carbamide Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 235000021049 nutrient content Nutrition 0.000 claims abstract description 6
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims abstract description 6
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 claims abstract description 6
- 229910000389 calcium phosphate Inorganic materials 0.000 claims abstract description 5
- 235000011010 calcium phosphates Nutrition 0.000 claims abstract description 5
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 5
- 229910052939 potassium sulfate Inorganic materials 0.000 claims abstract description 5
- 235000011151 potassium sulphates Nutrition 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 9
- 230000007774 longterm Effects 0.000 claims description 3
- 210000003608 fece Anatomy 0.000 claims description 2
- 239000010871 livestock manure Substances 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 10
- 229910052700 potassium Inorganic materials 0.000 abstract description 10
- 235000015097 nutrients Nutrition 0.000 abstract description 9
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract description 7
- 239000011591 potassium Substances 0.000 abstract description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 6
- 239000011574 phosphorus Substances 0.000 abstract description 6
- 238000005904 alkaline hydrolysis reaction Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 4
- 239000003337 fertilizer Substances 0.000 description 14
- 238000012360 testing method Methods 0.000 description 12
- 241000207199 Citrus Species 0.000 description 9
- 241000756137 Hemerocallis Species 0.000 description 9
- 235000020971 citrus fruits Nutrition 0.000 description 9
- 235000017060 Arachis glabrata Nutrition 0.000 description 7
- 244000105624 Arachis hypogaea Species 0.000 description 7
- 235000010777 Arachis hypogaea Nutrition 0.000 description 7
- 235000018262 Arachis monticola Nutrition 0.000 description 7
- 235000020232 peanut Nutrition 0.000 description 7
- 244000269722 Thea sinensis Species 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 239000002420 orchard Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000009331 sowing Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 238000003971 tillage Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241000798443 Hornodermoporus martius Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000012773 agricultural material Substances 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000004856 soil analysis Methods 0.000 description 1
- 239000002881 soil fertilizer Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Soil Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Fertilizers (AREA)
Abstract
Change sour auxotype composite soil conditioner and its application the invention discloses one kind.The mass percent composition of the composite soil conditioner is as follows：Urea 20%；Calcium phosphate 21%；Potassium sulfate 20%；Magnesia 9%；Sepiolite 20%；Perlite 10%；The sepiolite is in granular form, and its particle diameter is 1.0~2.0mm；The perlite is in granular form, and its particle diameter is 1.0~2.0mm.The composite soil conditioner can significantly improve soil nutrient content, enable in particular to significantly improve the content of the readily available nutrients of soil such as soil alkaline hydrolysis nitrogen, rapid available phosphorus, available potassium；Composite soil conditioner of the present invention being capable of improved soil acidity；Composite soil conditioner of the present invention can increase crop yield；Therefore composite soil conditioner of the present invention can be widely applicable for red soil farmland crop system, and popularizing application prospect is wide.
Description
Technical field
The present invention relates to a kind of soil conditioner and its application, and in particular to one kind changes sour auxotype composite soil conditioner
And its application.
Background technology
Red Soils in Southern China land area accounts for the 22.7% of the national soil gross area up to 2,180,000 square kilometres, is China's weight
The Foodgrain and oilseed production base wanted.In terms of soil genesis angle, red soil is highly developed under the effect of Perenniporia martius weather
A kind of soil, sour, thin, glutinous, plate is the basic primary characteristic of red soil.However, due to management factors such as long-term unreasonable fertilisings, closely
Red soil acidifying is serious over 30 years so that originally fragile red soil acidity is further exacerbated by, and the nutrient dificiency such as barren and calcium, magnesium enters one
Step is highlighted, and seriously threatens the grain-production safety and the sustainable development of agricultural of China.
Soil conditioner is to add in soil to be used to improve the material of soil physics and chemical property and its bioactivity.Apply
It is the easy and effective measure of a red soil of effectively repairing and foster and apply fertilizer with soil conditioner, but the soil conditioning of current agricultural materials market
Agent is based on the alkaline matters such as lime, dolomite dust, and these alkaline matters poor mobility in the soil body, chronic administration can cause soil
Earth is hardened, causes the leaching loss of the nutrients such as potassium in soil, magnesium, so as to accelerate the nutrient of soil uneven.
The content of the invention
Change sour auxotype composite soil conditioner it is an object of the invention to provide one kind, the composite soil conditioner has
Red soil Poor structure, chesson are improved, improves nutrient supply, reduce the multi-functional of soil acidity.
What the present invention was provided changes sour auxotype composite soil conditioner, and its mass percent composition is as follows：
Urea 20%；
Calcium phosphate 21%；
Potassium sulfate 20%；
Magnesia 9%；
Sepiolite 20%；
Perlite 10%.
The weight/mass percentage composition of N element is 46% in the urea；
The weight/mass percentage composition of P element is with P in the calcium phosphate2O5It is calculated as 24%；
The weight/mass percentage composition of K element is with K in the potassium sulfate2O is calculated as 50%.
In composite soil conditioner of the present invention, the sepiolite is a kind of rich magnesium silicate clay mineral, wherein SiO2Contain
54~60%, MgO 21~25% is measured, specific surface area is larger, mainly originates in the ground such as Hunan, Jiangxi.The present invention use particle diameter for
1.0~2.0mm graininess sepiolite.
In composite soil conditioner of the present invention, the pearl series of rocks high-temperature roasting is formed, in cell foams shape grain structure,
With countless irregular closed apertures, two or three of apertures, which are connected, forms larger space；This structure has gas permeability, absorption, protected
The good characteristics such as moisture in the soil fertilizer conservation.In addition, the perlite is in itself also containing nutrients such as potassium, phosphorus, silicon, calcium.The present invention uses grain
Footpath is 1.0~2.0mm graininess perlite.
The present invention uses the graininess that particle diameter is 1.0~2.0mm for 1.0~2.0mm graininess sepiolite and particle diameter precious
Zhu Yan, is easier that the composite soil conditioner is made with the mixing of other particulate components；And field, when applying, running into has
The weather of wind, can effectively avoid flying away loss.
Composite soil conditioner of the present invention can be prepared as follows：, will according to the mass percent
The urea, the calcium phosphate, the potassium sulfate, the magnesia, the sepiolite and the perlite are mixed evenly
Produce.
The method for improving red soil using composite soil conditioner of the present invention comprises the following steps：The composite soil is nursed one's health
Agent is applied in red soil as base manure；
The amount of application of the composite soil conditioner can be 120kg/ mus.
Need to plough the crop of soil before sowing for day lily, peanut and herbage etc., time of application is ploughed for spring soil
One-time use before ground, method of application earth's surface is ploughed after uniformly spreading fertilizer over the fields.
For the zero tillage system such as tea place, citrus orchard, time of application is spring, usually mid or late March, citrus orchard
Method of application is dripped in tree crown to spread manuer in holes and locates to dig cave, radial 4, digging cave, cave deep 20~30cm, the wide 8~10cm in cave, cave length 20
~40cm, symmetrical rotation carries out rotation every year.The method of application of soil conditioner is ditch spread in tea place, is vertically thrown in tree crown
Deep 10~12 centimetres, wide 8~10 centimetres flat ditch is opened on the outside of the edge of shadow, soil conditioner is imposed in ditch, blinding leveling.Often
Secondary application position should should not be coincided with one for each time in tea row both sides alternately.
Composite soil conditioner of the present invention can be applied to improve in red soil, specifically can behave as following aspects：
1) nutrient content of red soil is improved；
The field test (plantation day lily) of the specific embodiment of the invention shows that composite soil conditioner of the present invention can
Soil nutrient content is improved comprehensively, and the content of the readily available nutrient of soil such as soil alkali-hydrolyzable nitrogen, rapid available phosphorus, available potassium is compared to N P and K
Fertile increase rate respectively reaches 37.3%, 14.4% and 4.0%.
2) pH value of red soil is improved；
The field test (plantation day lily) of the specific embodiment of the invention shows that composite soil conditioner of the present invention can
Improved soil is acid, improves soil pH, and 0.81 unit is up to compared to azophoska increase rate, and Soil building effect shows
Write.
3) yield of red soil long-term cropping is improved；
The field test of the specific embodiment of the invention shows, compared with applying azophoska, and composite soil of the present invention is adjusted
Reason agent can significantly improve the yield of crops, and the output increased amplitude of such as day lily, peanut and herbage crops is
21.1%~29.8%；
The field test of the specific embodiment of the invention shows, compared with applying azophoska, and composite soil of the present invention is adjusted
Reason agent can significantly improve the yield of field crop, and such as output increased amplitude of tealeaves, citrus field crop is 20.3%~
22.9%.
Compared with prior art, composite soil conditioner of the present invention has advantages below：
The present invention, which changes sour auxotype composite soil conditioner, can significantly improve soil nutrient content, enable in particular to significantly carry
The field examination of the content of the readily available nutrients of soil such as high soil alkaline hydrolysis nitrogen, rapid available phosphorus, available potassium, such as specific embodiment of the invention
Test middle soil alkaline hydrolysis nitrogen, rapid available phosphorus, the content ratio of available potassium and 37.3%, 14.4% and has been respectively increased using azophoska
4.0%.The present invention changes sour auxotype composite soil conditioner being capable of improved soil acidity, the field of such as specific embodiment of the invention
Between test in the pH value ratio of soil improve 0.81 unit using azophoska.The present invention changes sour auxotype composite soil conditioning
Agent can increase crop yield, and the field test of such as specific embodiment of the invention shows, the present invention changes sour auxotype composite earth
Earth conditioner can significantly improve the yield of the field such as tealeaves, citrus crop, and increase rate is up to 20.3%~22.9%；The present invention
The yield of the crops such as day lily, peanut and herbage, increase rate can be significantly improved by changing sour auxotype composite soil conditioner
For 21.1%~29.8%；Therefore composite soil conditioner of the present invention can be widely applicable for red soil farmland crop system, promote
Have a extensive future.
Embodiment
Experimental method used in following embodiments is conventional method unless otherwise specified.
Material, reagent used etc., unless otherwise specified, are commercially obtained in following embodiments.
Embodiment 1, the composite soil conditioner for preparing the present invention
Each component is weighed by following mass percents：
Urea (N 46%) 20%, calcium phosphate (P2O524%) 21%, potassium sulfate (K2O 50%) 20%, magnesia
(MgO) 9%, graininess sepiolite (particle diameter is 1.0~2.0mm) 20%, graininess perlite (particle diameter is 1.0~2.0mm)
10%.
Above-mentioned each component is well mixed and obtains composite soil conditioner of the present invention.
The performance test of embodiment 2, composite soil conditioner of the present invention
The present embodiment provides the contrast test data for evaluating composite soil conditioner of the present invention and azophoska：
Soil conditioner prepared by embodiment 1 is used for following contrast tests, and the present embodiment is tested in Hunan Province Qiyang County
The farmland of large plantation family carry out, the soil parent material of the red soil on the ground is Quaternary Red Soil.Space management (CK) is place of not applying fertilizer
Reason, test group applies fertilizer to the subsoil as the soil conditioner of the preparation of the embodiment of the present invention 1, and control group (NPK) applies fertilizer to the subsoil as N P and K
(N, P and K content are respectively N 15%, P to fertilizer2O515% and K2O 15%).
Experimental field：Hunan Province Qiyang County；
, day lily, peanut, herbage, tealeaves and citrus, field test in 2015；
Blank group：Not fertilizer treatment；
Control group：Base fertilizer applies 50kg/ mus of azophoska；
Test group：Base fertilizer applies 120kg/ mus of composite soil conditioner.
Need to plough the crop of soil before sowing for day lily, peanut and herbage etc., time of application is ploughed for spring soil
One-time use before ground, method of application earth's surface is ploughed after uniformly spreading fertilizer over the fields.
For the zero tillage system such as tea place, citrus orchard, time of application is spring, usually mid or late March, citrus orchard
Method of application is dripped in tree crown to spread manuer in holes and locates to dig cave, radial 4, digging cave, cave deep 20~30cm, the wide 8~10cm in cave, cave length 20
~40cm, symmetrical rotation carries out rotation every year.The method of application of soil conditioner is ditch spread in tea place, is vertically thrown in tree crown
Deep 10~12 centimetres, wide 8~10 centimetres flat ditch is opened on the outside of the edge of shadow, soil conditioner is imposed in ditch, blinding leveling.Often
Secondary application position should should not be coincided with one for each time in tea row both sides alternately
The area each handled is 200m2More than, it is repeated 3 times, December carries out the collection of pedotheque, in trial zone
The soil of multipoint acquisition top layer (0~20cm) is carried out according to serpentine line, collection, preparation, detection and the preservation of pedotheque are pressed
According to《Soil Analysis in Agricultural Chemistry》The third edition (Bao Shidan is edited, 2005) is carried out.
First, influence of the composite soil conditioner of the present invention to red soil chemical property
After 1 year, the chemical property of the red soil of each treatment group is as shown in table 1.
The present invention, which changes sour auxotype composite soil conditioner, it can be seen from the data in table 1 can improve soil comprehensively
Nutrient content, compared to azophoska is applied, the content of the readily available nutrient of soil such as soil alkaline hydrolysis nitrogen, rapid available phosphorus, available potassium is carried
High-amplitude respectively reaches 37.3%, 14.4% and 4.0%.After composite soil conditioner of the present invention, additionally it is possible to improved soil
Acidity, improves soil pH, and increase rate is up to 0.81 unit, and Soil building effect is notable.
Influence of the different disposal of table 1 to red soil chemical property
2nd, influence of the composite soil conditioner of the present invention to crop yield
Influence of the different disposal of table 2 to crop yield
Note：The rate of growth of crop is compared with using NPK fertilizer.
It can be seen from the data in table 2 change sour auxotype composite soil conditioner using the present invention, day lily is averaged
Per mu yield is 266 ± 20 kilograms, and the average yield per mu of peanut is 132 ± 14 kilograms, and the average yield per mu of herbage is 576 ± 34 kilograms, point
Not than applying about 21 kilograms, 23 kilograms and 126 kilograms of nitrogen phosphorus fertilizer processing volume increase, rate of growth is respectively 29.8%, 21.1% and
28.0%.Prove that the present invention changes sour auxotype composite soil conditioner and can significantly improve the farmings such as day lily, peanut and herbage
The yield of thing, increase rate is 21.1%~29.8%.
3rd, influence of the composite soil conditioner of the present invention to crop yield
Influence of the different disposal of table 3 to field crop yield
Note：The rate of growth of crop is compared with using NPK fertilizer.
Change sour auxotype composite soil conditioner, the average mu of tealeaves using the present invention it can be seen from the data in table 3
Produce as 71 ± 6 kilograms, the average yield per mu of citrus is 617 ± 45 kilograms, respectively than apply about 12 kilograms of nitrogen phosphorus fertilizer processing volume increase and
115 kilograms, rate of growth is respectively 20.3% and 22.9%.The proof present invention changes sour auxotype composite soil conditioner can be obvious
Improve tealeaves, the yield of the field crop such as citrus, increase rate is up to 20.3%~22.9%.
Claims (7)
1. one kind changes sour auxotype composite soil conditioner, its mass percent composition is as follows：
Urea 20%；
Calcium phosphate 21%；
Potassium sulfate 20%；
Magnesia 9%；
Sepiolite 20%；
Perlite 10%.
2. composite soil conditioner according to claim 1, it is characterised in that：The sepiolite is in granular form, its particle diameter
For 1.0~2.0mm.
3. composite soil conditioner according to claim 1 or 2, it is characterised in that：The perlite is in granular form, its grain
Footpath is 1.0~2.0mm.
Improve the method for red soil 4. a kind of, including regard composite soil conditioner any one of claim 1-3 as base manure
It is applied to the step in red soil.
5. method according to claim 4, it is characterised in that：The amount of application of the composite soil conditioner is 120kg/
Mu.
6. application of the composite soil conditioner any one of claim 1-3 in red soil is improved.
7. composite soil conditioner any one of claim 1-3 is following 1) -3) in it is any in application：
1) nutrient content of red soil is improved；
2) pH value of red soil is improved；
3) yield of red soil long-term cropping is improved.
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| CN201710398720.1A CN107032931A (en) | 2017-05-31 | 2017-05-31 | One kind changes sour auxotype composite soil conditioner and its application |
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| CN107032931A true CN107032931A (en) | 2017-08-11 |
Family
ID=59540496
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