CN102127452B - Soil conditioning material with ecological restoration function for degraded agricultural land and production method thereof - Google Patents
Soil conditioning material with ecological restoration function for degraded agricultural land and production method thereof Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 83
- 239000002689 soil Substances 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 230000003750 conditioning effect Effects 0.000 title abstract 3
- 239000003337 fertilizer Substances 0.000 claims abstract description 56
- 238000000034 method Methods 0.000 claims abstract description 32
- 239000000126 substance Substances 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 239000011734 sodium Substances 0.000 claims abstract description 16
- 210000003608 fece Anatomy 0.000 claims abstract description 15
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 13
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 13
- 239000003245 coal Substances 0.000 claims abstract description 9
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- 239000010871 livestock manure Substances 0.000 claims abstract description 8
- 244000005700 microbiome Species 0.000 claims abstract description 7
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- 238000012545 processing Methods 0.000 claims description 6
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- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000012467 final product Substances 0.000 claims description 4
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- 239000010452 phosphate Substances 0.000 claims description 4
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- 238000010521 absorption reaction Methods 0.000 claims description 3
- QLULGSLAHXLKSR-UHFFFAOYSA-N azane;phosphane Chemical compound N.P QLULGSLAHXLKSR-UHFFFAOYSA-N 0.000 claims description 3
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- 238000001953 recrystallisation Methods 0.000 claims description 3
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- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
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- 238000009395 breeding Methods 0.000 abstract 1
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- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
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Abstract
The invention discloses a method for producing a soil conditioning material with an ecological restoration function for degraded agricultural land. The method comprises the following steps of: (1) crushing straw materials and mixing with livestock and poultry manures to prepare a material A1; (2) pretreating peat, coal slime, charcoal and lignite to form granules, and mixing according to a certain proportion to prepare a material A2; (3) uniformly mixing the material A1 and the material A2 according to the proportion; (4) dissolving a phosphorus chemical waste material, namely phosphogypsum in water at the temperature of more than 80 DEG C, and rapidly adding into the mixture of the material A1 and the material A2 according to a proportion of 3 to 12 weight percent; (5) performing sodium treatment on calcium bentonite, and adding into the mixture; and (6) adding energy elements necessary for the growth and breeding of microorganisms into the mixture, adjusting proper carbon nitrogen ratio and carbon phosphorus ratio, adjusting a pH value and humidity, and fermenting. By the soil conditioning material produced by the method, soil can be fully restored, the using amount of chemical fertilizers, pesticides and mulching films is reduced, and the quality and the quantity of the products of crops are improved.
Description
Technical field
The present invention relates to a kind of soil adjustment material and production method thereof, particularly, relate to a kind of the have restoration of the ecosystem of degeneration crop land, solid fertile, the slow-release function of solid water, the soil adjustment material and the production method thereof that effectively reduce the loss of chemical fertilizer rate, reduce Per Unit Area Grain Yield fertilizer application amount, increase fertility of land fast.
Background technology
Modern age, the agro-farming technology, the extensive application of agriculture input (as: chemical fertilizer, agricultural chemicals tethelin, mulch film etc.) of China, serious destruction the optimum equilibrium system of crop land, cause serious, the general degeneration of crop land soil.Data shows, the phenomenon of four ignorance of not allowing that bring due to the crop land Soil degradation:
1, pollution by chemical fertilizer: the fertilizer application amount of China is 375kg/hm in recent years
2, be 4 times of the U.S., exceeded the 225kg/hm that developed country arranges
2upper safety limit.According to Food and Argriculture OrganizationFAO, calculate, world's per hectare arable land annual applying quantity of chemical fertilizer is 104kg, and the usage quantity of China's nitrogenous fertilizer accounts for global 30%, 2 times of the upper limit, the utilization ratio of average nitrogenous fertilizer is only 30～35%, and phosphate fertilizer is 10%～20%, potash fertilizer 35%～50%.West european developed country since nineteen eighty fertilizer amount constantly descends 28%, and the same period, total grain output and per unit area yield increased respectively 57% and 80% therewith, and, in 35 years of China 1950～1985, fertilizer amount has increased by 8.29 times, and cereal only increases by 1.68 times around here.These point out us: we utilize the mode in soil, technology that problem is arranged, and the chemical fertilizer that the Soil degradation caused causes runs off in a large number, in the chemical fertilizer of a large amount of highly energy-consumings that expend, have also brought serious pollution of area source, and ecotope is caused to serious destruction.And, due to do not have can replacing fertilizer earth materials, in order to meet population pressure, China also must constantly add the usage quantity of large chemical fertilizer, do not have new technology, new soil ecology repair materials out before, the Soil degradation phenomenon of crop land also can continue.
2, pesticidal contamination: due to the crop land Soil degradation, balance, comprehensive nutritive ingredient are provided can not to the growth of farm crop, the growth of farm crop, in sub-health status, is easily invaded by disease and pest, and the agricultural chemicals used brings serious Pesticides Residues.Data shows: national pesticide application approximately has in 60%～70% entered environment, only has an appointment 30% by farm crop, to be absorbed.If the spraying liquid agricultural chemicals, only have 20% left and right to be attached on plant materials, 1%～4% touches target pest, and the west most countries has banned use of the high toxicity agricultural chemicals in a large number.
3, feces of livestock and poultry pollutes: due to the crop land Soil degradation, especially the destruction of crop land microbial environment can't be decomposed feces of livestock and poultry, causes feces of livestock and poultry to pollute.Data shows: feces of livestock and poultry principal pollutant chemical oxygen demand (COD), and the number of dropouts of biological oxygen demand (BOD) (BOD) increases year by year, and 2010, the number of dropouts that the number of dropouts of COD will reach 728.25 ten thousand, tBOD will reach 498.83 ten thousand t.
4, plastic sheeting for farm use pollutes: due to the crop land Soil degradation, crop land insulation, moisture-keeping functions descend, and a large amount of mulch films that use, " white pollution " that serious future trouble is arranged brought, affect the stretching, extension of farmland mechanical cultivation, crop root, affect Soil structure, objectionable impurities is accumulated year by year, and the future trouble that poisons crop land is fully arranged.
Simultaneously, the harvesting approach of traditional agriculture, take seed formula type harvesting approach as main. and there is defect in essence in the method: people, by the material grown out in farmland, only take seed away, and abandon the stalk material, for soil, are the unidirectional output of an energy and material.The crop land of degenerating lacks a large amount of organic matters, and a large amount of stalk material abandons or burning also causes serious environmental pollution.
In addition, the peat formed in progress of coal mining, coal slime, wood carbon, brown coal, coal gangue the like waste, a large amount of waste phosphogypsum of phosphorous chemical industry is all the base mateiral of the large amount of organic composition of passing in crop land Soil degradation process.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of soil adjustment material and production method thereof with degeneration crop land ecological restoration function, soil of the present invention is adjusted material can ecological comprehensively rehabilitating soil, effectively reduce the fertilizer application amount under the condition of the equal unit input amount of same throughput, improve chemical fertilizer utilization ratio; Lower agricultural chemicals usage quantity and mulch film usage quantity, reduce the injury of chemical fertilizer loss brings in a large number serious " pollution of area source " to ecotope, improve output object quality, the amount of farm crop.
Technical scheme provided by the invention is: a kind of production has the method for the soil adjustment material of degeneration crop land ecological restoration function, comprises the following steps:
(1) straw material powder is broken into after 40-60 purpose material with animal dung by 1: the 1.8-4 weight ratio mixes, and is called the A1 material;
(2) by peat, coal slime, wood carbon, brown coal, after the pre-treatment powder becomes 40-80 purpose pellet, by 1: 1.2-2.3: 1.2-1.8: after the 1.0-1.2 weight ratio is mixed, be called the A2 material;
(3) by above-mentioned A1 material and A2 material, be 1 in proportion: 0.1-0.3 mixes;
(4) phosphorous chemical industry dead meal phosphogypsum is dissolved in the water more than 80 ℃, the phosphogypsum after dissolving is called the A3 material, and the ratio by the A3 material in 3-12%wt adds in the mixture of A1 material and A2 material fast, completes its recrystallization process;
(5) calcium-base bentonite is carried out to the sodium processing, make its sodium ions content be increased to 8-12%wt by 1.0-1.47%wt, a large amount of sodium ions enters into calcium-base bentonite and displaces original calcium or other ion, the calcium-base bentonite of the remodeling made is called the A4 material, the A4 material is joined in the mixture of above-mentioned three kinds of material, and mix;
(6) add composite fungus agent in above-mentioned (5) compound, interpolation urea, carbon ammonium, phosphorus ammonium microorganism growth are bred necessary energy element, the adjusting carbon-nitrogen ratio is 20-30: 1, carbon-phosphorus ratio is 90-100: 1, pH value is controlled between 7-8, humidity 50-65%, first at aerobic situation bottom fermentation 3-4 days, then the 2-3 days that under anaerobic ferments, then, at aerobic situation bottom fermentation 2-3 days, then under anaerobic ferment and get final product in 3-14 days.。
Above-mentioned method, in (2) step, also be added with flyash in the A2 material, and addition is 1-3%wt.
Described method, when fermentation starts, can add coal gangue or the kaolin of 5-10%, for microorganism provides the absorption place.
In above-mentioned (5) step, the processing condition that sodium is processed are: the sodium agent is: the Na that concentration is 4%
2cO
3, pulp density: 3.6-9.8%, rotating speed (blade terminal velocity): 1.33m/s, sodium time: 30min, bath temperature: 45-70 ℃.
In above-mentioned (6) step, the fungus strain body mixture that described composite fungus agent is vinelandii, phosphate-solubilizing bacteria, potassium bacterium, photosynthetic bacterium, actinomycetes, rotten bacillus, kapok bacterium, anerobe, useful viable count is greater than 2,000,000,000/gram composite fungus agent, and addition is 0.1-0.3%wt.
Above-mentioned method, by weight, wherein, rotten bacillus: kapok bacterium: phosphate solubilizing bacteria: potassium solubilizing bacteria: anerobe=0.13-0.18: 0.06-0.09: 0.12-0.16: 0.06-0.09: 0.114-0.116.
In above-mentioned (6) step, preferably, regulating carbon-nitrogen ratio is 20: 1, and carbon-phosphorus ratio is 100: 1, and regulates humidity maintenance 60-65% in fermenting process.
The present invention also provides the soil adjustment material with degeneration crop land ecological restoration function obtained by above-mentioned method.
The fertilizing method that the present invention also provides described soil to adjust material, described soil is adjusted material and can be spread fertilizer over the fields as base manure, row replacement and/or spread manuer in holes, mu fertilising 80-160 kilogram.
The present invention has following beneficial effect: soil of the present invention is adjusted material can ecological comprehensively rehabilitating soil, increases fertility of land fast; Effectively reduce the fertilizer application amount more than 40% under the condition of the equal unit input amount of same throughput, improve chemical fertilizer utilization ratio more than 50%; For the healthy growth process of farm crop is set up balance between supply and demand system good, comprehensive nutritive element, effectively lower agricultural chemicals usage quantity and mulch film usage quantity, lower the agricultural chemicals usage quantity more than 50%, the mulch film usage quantity descends 60%, reduces greatly agro-farming process and the agriculture input destruction to ecotope; Effectively promote the efficient also field of agricultural byproducts stalk material, to the arable land fast repairing, fill organic matter, the quick effect that improves, optimizes crop land solid water, solid fertilizer, slowly-releasing, insulation, guarantor's earth, optimizes the arable layer ecotope.
Embodiment
Detailed description below by embodiment is further illustrated the present invention, but is not limitation of the present invention, only does the example explanation.
Embodiment 1: produce the soil adjustment material with degeneration crop land ecological restoration function
(1) mix by 1: 3 weight ratio with animal dung after straw material powder being broken into to 40-60 purpose material, be called the A1 material.
(2) by peat, coal slime, wood carbon, brown coal, after the pre-treatment powder becomes 40-80 purpose pellet, by 1: 1.8: 1.5: after 1.1 weight ratios are mixed, be called the A2 material.In this step, also can add flyash in the A2 material, addition is 2%wt.
(3) by above-mentioned A1 material and A2 material, be 1 in proportion: 0.1-0.3 (being 1: 0.2 in the present embodiment) mixes.
(4) after phosphorous chemical industry dead meal phosphogypsum is dissolved in the water more than 80 ℃, phosphogypsum after dissolving is called A3 material (concentration span of control 30-80%wt), then by the A3 material, the ratio in 8%wt adds in the mixture of A1 material and A2 material fast, completes its recrystallization process.
(4) calcium-base bentonite is carried out to the sodium processing, the processing condition that sodium is processed are: the sodium agent is: the Na that concentration is 4%
2cO
3, pulp density: 3.6-9.8% (being 5% in the present embodiment), rotating speed of agitator (blade terminal velocity): 1.33m/s, sodium time: 30min, bath temperature: 45-70 ℃.Make the sodium ions content of calcium-base bentonite be increased to 12% by 1.47%, a large amount of sodium ions enters into calcium-base bentonite and displaces original calcium or other ion, the calcium-base bentonite of the remodeling made is called the A4 material, the A4 material is joined in the mixture of above-mentioned three kinds of material, and mix.
(5) adding composite fungus agent in above-mentioned (4) compound is comprised of beneficial microorganisms such as vinelandii, phosphate-solubilizing bacteria, potassium bacterium, photosynthetic bacterium, actinomycetes and yeast, genus bacillus, useful viable count is greater than the microbiobacterial agent of 2,000,000,000/gram) the composite fungus agent fungus strain body mixture (for example: the legendary god of farming adopts the standing grain bio tech ltd and produces the microbial fertilizer bacterium) that is vinelandii, phosphate-solubilizing bacteria, potassium bacterium, photosynthetic bacterium, actinomycetes, rotten bacillus, kapok bacterium, anerobe, useful viable count is greater than 2,000,000,000/gram composite fungus agent, and addition is 0.2wt%.By weight, wherein, rotten bacillus: kapok bacterium: phosphate solubilizing bacteria: potassium solubilizing bacteria: anerobe=0.13-0.18: 0.06-0.09: 0.12-0.16: 0.06-0.09: 0.114-0.116, add urea, carbon ammonium, phosphorus ammonium, fused(calcium magnesium)phosphate (P
2o
5-12-H
2o≤1%), Zinc Sulphate Heptahydrate, the microorganism growth such as Repone K are bred necessary energy element, regulating carbon-nitrogen ratio (C/N) is 20: 1, carbon phosphorus (C/P) is than being 100: 1, carbon potassium (C/K) is than being 12-20: 1 (being 15: 1 in the present embodiment), the pH value is controlled between 7-8, humidity is controlled at 60-65%, carry out anaerobism, aerobic double oxygen cycle fermentation gets final product in 20 days, that is: aerobic situation bottom fermentation 3 days, temperature is controlled at 65 ℃ of left and right, then under anaerobic ferment 3 days, temperature is controlled at 60-65 ℃, again aerobic situation bottom fermentation 3 days, temperature is controlled at 30 ℃ of left and right, then under anaerobic ferment 11 days, temperature is controlled at 30-65 ℃.
In the fast rotten process of stalk, organic substance decomposing is the aerobic fermentation, therefore tool turning and air-supply oxygen gas-supplying can take this opportunity, except promoting compost maturity, but and the remove portion heat of fermentation, in fermenting process, using temperature index as the ventilation oxygenating criterion, when temperature reaches 62 ℃ of 4-8 hour, open ventilation plant or start stirring and prepare cooling oxygen supply, 200 liters of its air flow PMT (Per metric ton) matrix per minutes are advisable.
Embodiment 2: the using method with soil adjustment material of degeneration crop land ecological restoration function
The soil that the present invention has a degeneration crop land ecological restoration function is adjusted material and can be made base manure and also can do the use of topdressing.According to the general mu fertilising of land fertility 80-160 kilogram.Making base manure can spread fertilizer over the fields, and bar (ditch) is executed and spreads manuer in holes.
1, spread fertilizer over the fields: spread fertilizer over the fields be by the even spreading of fertilizer in soil.Spreading fertilizer over the fields can deep placement, but also top application (shallow executing).The technology of deep placement is to spread with plough, to plough under soil lower floor (degree of depth be no more than 20 centimetres for good) afterwards, and top application only got final product with harrowing.Spread fertilizer over the fields be applicable to dense planting crop as wheat, barley, careless class.The advantage of spreading fertilizer over the fields is easy, and each position of soil has nutrient absorbed by crops; Shortcoming is that utilization rate of fertilizer is not high.The ecological soil material does not generally advocate to spread fertilizer over the fields.
2, row replacement (ditch spread): row replacement is called again ditch spread, is suitable for program request, drilling and needs the crop of field planting.The dark 15-20 centimetre that ditches, evenly apply fertilizer and with equivalent mixing with soil, the sowing of earthing 1-2 cm thick, then earthing.The advantage of this fertilizing method is: the nearly root of fertilizer, easily be absorbed and used, thereby utilization rate of fertilizer is higher, and also be conducive to drought resisting.Fertilizer can be executed under seed, also can execute the one or both sides at seed.Note not allowing directly contacting seed without the fertilizer with mixing with soil, in the time of transplanting, also do not allow transplanted seedling directly contact with fertilizer.
3, spread manuer in holes: spreading manuer in holes is around crop seed or field planting crop seedling root, digs and spreads manuer in holes into fertilizer earthing.The method of caving & fertilizing is applicable to program request or transplants crop, as corn, rape, cotton, castor-oil plant, tomato etc.Generally than row replacement, more can make fertilizer concentrate and use, also relatively joint is fertile.But the degree of depth of generally spreading manuer in holes is according to crop 10-20 centimetre, earthing after fertilising, for fear of the higher fertilizer injury crop root of concentration in cave, behind the cave of applying fertilizer should with the equivalent mixing with soil, sow after covering 1-2 centimetre of soil, then earthing.Castor-oil plant can directly sow with mixing with soil after fertilizer on.
After fertilising, the front best incorporated of earthing is poured water, and can accelerate the nutrition absorption utilization.
Soil adjustment material of the present invention topdresses to use and also can take row replacement and spread manuer in holes.Trench digging digs cave should be 10 centimetres away from crop stem more than.
4, use soil adjustment material of the present invention, can make with reference to general composite chemical fertilizer the using method of base manure, best and farm manure (general every mu of 2-3 ton of farm manure consumption) is used in conjunction with, and take according to the needs of Different Crop growth the measure of topdressing, (such as imposing urea etc.), to guarantee higher output.
5, soil adjustment material of the present invention has the function of saving water, resisting drought, but meets large damage caused by a drought, also should suitably water.
6, all kinds of farm crop are used soil adjustment material of the present invention, and rate of fertilizer application sees the following form 1:
All kinds of farm crop of table 1 are built and change field recommended fertilizer (kg/667m
2)
| Crop | Recommended fertilizer | Fertilizing method |
| Potato | 140-160 | With conventional fertilizer mixing ditch spread |
| Sunflower Receptacle | 100-120 | With conventional fertilizer mixing ditch spread |
| Oat | 120-140 | With conventional fertilizer mixing ditch spread |
| Millet | 100-120 | With conventional fertilizer mixing ditch spread |
| Beans | 100-140 | With conventional fertilizer mixing ditch spread |
| Beet | 140-160 | With conventional fertilizer mixing ditch spread |
| Shallot | 100-120 | With conventional fertilizer mixing ditch spread |
| Tobacco leaf | 80-120 | With conventional fertilizer mixing ditch spread |
| Greengrocery | 140-160 | With conventional fertilizer mixing ditch spread |
Claims (9)
1. a production has the method for the soil adjustment material of degeneration crop land ecological restoration function, it is characterized in that comprising the following steps:
(1) straw material powder is broken into after 40-60 purpose material with animal dung by 1: the 1.8-4 weight ratio mixes, and is called the A1 material;
(2) by peat, coal slime, wood carbon, brown coal, after powder becomes 40-80 purpose pellet, by 1: 1.2-2.3: after 1.2-1.8 1.0-1.2 weight ratio is mixed, be called the A2 material;
(3) by above-mentioned A1 material and A2 material, be 1 in proportion: 0.1-0.3 mixes;
(4) phosphorous chemical industry dead meal phosphogypsum is dissolved in the water more than 80 ℃, the phosphogypsum after dissolving is called the A3 material, and the ratio by the A3 material in 3-12%wt adds in the mixture of A1 material and A2 material fast, completes its recrystallization process;
(5) calcium-base bentonite is carried out to the sodium processing, make its sodium ions content be increased to 8-12%wt by 1.0-1.47%wt, a large amount of sodium ions enters into calcium-base bentonite and displaces original calcium or other ion, the calcium-base bentonite of the remodeling made is called the A4 material, the A4 material is joined in the mixture of above-mentioned three kinds of material, and mix;
(6) add composite fungus agent in above-mentioned (5) compound, add urea, the carbon ammonium, phosphorus ammonium microorganism growth is bred necessary energy element, the adjusting carbon-nitrogen ratio is 20-30:1, carbon-phosphorus ratio is 90-100:1, the pH value is controlled between 7-8, humidity 50-65%, first at aerobic situation bottom fermentation 3-4 days, then 2-3 days under anaerobic ferments, again at aerobic situation bottom fermentation 2-3 days, then under anaerobic ferment and get final product in 3-14 days, wherein, described composite fungus agent is vinelandii, phosphate-solubilizing bacteria, potassium bacterium, photosynthetic bacterium, actinomycetes, rotten bacillus, the kapok bacterium, the fungus strain body mixture of anerobe.
2. method according to claim 1 is characterized in that: in (2) step, in the A2 material, also be added with flyash, addition is 1-3%wt.
3. method according to claim 1, is characterized in that: in (6) step, when fermentation starts, add coal gangue or the kaolin of 5-10%, for microorganism provides the absorption place.
4. method according to claim 1 is characterized in that: in (5) step, the processing condition that sodium is processed are: the sodium agent is the Na that concentration is 4%
2cO
3, pulp density 3.6-9.8%, rotating speed 1.33m/s, described rotating speed is stirring rake blade terminal velocity, sodium time 30min, bath temperature 45-70 ℃.
5. method according to claim 1, it is characterized in that: in (6) step, the useful viable count in described composite fungus agent is greater than 2,000,000,000/gram composite fungus agent, and addition is 0.1-0.3wt%.
6. method according to claim 1 is characterized in that: by weight, wherein, rotten bacillus: kapok bacterium: phosphate solubilizing bacteria: potassium solubilizing bacteria: anerobe=0.13-0.18:0.06-0.09:0.12-0.16:0.06-0.09:0.114-0.116.
7. method according to claim 1, it is characterized in that: in (6) step, the adjusting carbon-nitrogen ratio is 20:1, and carbon-phosphorus ratio is 100:1, and regulates humidity in fermenting process and keep 60-65%.
8. the soil with degeneration crop land ecological restoration function that a method according to claim 1 obtains is adjusted material.
9. the described soil of a claim 8 is adjusted the fertilizing method of material, it is characterized in that: described soil is adjusted material and is spread fertilizer over the fields as base manure, row replacement and/or spread manuer in holes, mu fertilising 80-160 kilogram.
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| CN106047351A (en) * | 2016-05-27 | 2016-10-26 | 山西煤炭管理干部学院 | Special soil conditioner for yam plantation and preparation method of special soil conditioner for yam plantation |
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| CN106010574A (en) * | 2016-06-30 | 2016-10-12 | 哈尔滨尼亚农业有限公司 | Soil conditioner for restoring soil activity and preparation method thereof |
| CN105950156A (en) * | 2016-06-30 | 2016-09-21 | 江苏省有色金属华东地质勘查局地球化学勘查与海洋地质调查研究院 | Soil conditioner based on secondary use of chemical phosphorus tailings and preparation method of soil conditioner |
| CN106495792A (en) * | 2016-09-30 | 2017-03-15 | 五洲丰农业科技有限公司 | The production technology of peat organic granular fertilizer |
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| CN113337292A (en) * | 2021-06-21 | 2021-09-03 | 中国科学院东北地理与农业生态研究所 | Preparation method of lignite-straw-based degraded saline-alkali wetland restoration agent |
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| CN1557789A (en) * | 2004-01-17 | 2004-12-29 | 北京中美倍德生物工程技术有限公司 | Organic-inorganic compound fertilizer with active compost as base material |
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