CN105777421A - Selenium-rich organic slow-release fertilizer and production method thereof - Google Patents
Selenium-rich organic slow-release fertilizer and production method thereof Download PDFInfo
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- CN105777421A CN105777421A CN201610073644.2A CN201610073644A CN105777421A CN 105777421 A CN105777421 A CN 105777421A CN 201610073644 A CN201610073644 A CN 201610073644A CN 105777421 A CN105777421 A CN 105777421A
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- 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
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
Abstract
The invention discloses a selenium-rich organic slow-release fertilizer.The selenium-rich organic slow-release fertilizer is mainly prepared from, by weight, 70-90 parts of chicken manure, 25-38 parts of cow manure, 10-18 parts of pond sludge, 5-8 parts of gecko manure, 4-7 parts of pangolin manure, 35-50 parts of fiber-containing biomass, 30-35 parts of bean pulp, 5-12 parts of shell powder, 10-16 parts of oyster shell powder, 5-8 parts of a strain, 20-26 parts of potassium humate, 20-30 parts of activated selenium ore powder, 30-50 parts of attapulgite and 1-3 parts of polyacrylamide.A production method of the selenium-rich organic slow-release fertilizer includes the following steps that 1, shell powder, oyster shell powder, bean pulp, fiber-containing biomass and the strain are subjected to primary fermentation; 2, the PH is regulated, and potassium humate, part of activated selenium ore powder, livestock and poultry manure and pond sludge are added and subjected to secondary fermentation; 3, attapulgite, polyacrylamide and the rest of activated selenium ore powder are added.By applying the organic fertilizer, the selenium content of crops can be effectively increased.
Description
Technical field
The present invention relates to agricultural technology field, particularly a kind of selenium-rich organic slow-release fertilizer and production method thereof.
Background technology
Selenium is the trace element that human body is indispensable, and is a kind of very capable antioxidant, it is possible to effective removing cancerigenic factor free radical, has the good reputation of " anticancer king ".Scientist finds after having investigated the relation between 20 national cancer mortalities and everyone selenium intake, the intake of selenium is few, cancer morbidity and mortality rate just increase, wherein especially obvious with the pulmonary carcinoma of colon cancer, cancer of pancreas, ovarian cancer, carcinoma of prostate and male and skin carcinoma etc..According to statistics, the whole world has 42 countries and regions to lack selenium；The investigation that Chinese Soclety of Nutrition does shows, China has area about 700,000,000 population of 2/3rds to be in scarce selenium state.Chinese Soclety of Nutrition recommends selenium intake every day to be per capita 50 ~ 200 micrograms, but now the day selenium intake of China adult only has 26 ~ 32 micrograms, and the bad situation of selemium nutrition is at China's ubiquity.
Squama Manis and Gecko are all wild animal medical materials, and for a long time, owing to demand is continuously increased, and yield constantly reduces, and the phenomenon that supply falls short of demand occur.Guangxi is the main place of production of Squama Manis and Gecko, the geographical environment in Guangxi, weather is all suitable for the ectogenesis of Squama Manis and Gecko, current artificial cultivation Gecko and Squama Manis all succeed, for improving the resistance against diseases of Gecko and Squama Manis, in the process of artificial cultivation, poultry raiser can add the feedstuff containing selenium or food, the feces that Gecko and Squama Manis are discharged also can contain the selenium of trace, if can by the feces of Gecko and Squama Manis further with, make selenium-rich organic slow-release fertilizer, it is beneficial to form Mode of Circular, reduce the aquaculture cost of cultivation Gecko and Squama Manis simultaneously.
Summary of the invention
The invention provides a kind of selenium-rich organic slow-release fertilizer and production method thereof, the feces of Gecko and Squama Manis is recycled, is equipped with activation selenium mineral powder, the prepared selenium-rich organic slow-release fertilizer that can be conducive to plant absorption.
For achieving the above object, the technical scheme is that
A kind of selenium-rich organic slow-release fertilizer, it is mainly made up of following components proportioning by weight: chicken manure 70 ~ 90 parts, cattle manure 25 ~ 38 parts, 10 ~ 18 parts of pond sludge, 5 ~ 8 parts of Gecko excrement, 4 ~ 7 parts of Squama Manis excrement, fibrous biomass 35 ~ 50 parts, bean cake 30 ~ 35 parts, conch meal 5 ~ 12 parts, oyster shell powder 10 ~ 16 parts, strain 5 ~ 8 parts, potassium humate 20 ~ 26 parts, activate selenium mineral powder 20 ~ 30 parts, attapulgite 30 ~ 50 parts, polyacrylamide 1 ~ 3 part.
Further, described activation selenium mineral powder is by selenium ore grinding, make the selenium mineral powder of 50 ~ 100 orders, adding mass fraction by liquid-solid ratio 4 ~ 6ml/g is the ammonia of 2 ~ 3%, soak 48 ~ 72h, every 1 ~ 2h stirs once, and stirring after having soaked and being slowly added to dust technology adjustment is 6.2 ~ 6.8 to PH, is then sequentially added into Fe2O3And calcium acetate, stirring 1h, place in baking oven and dry, drying to moisture is 7 ~ 10%, it is thus achieved that activation selenium mineral powder.
Above-described selenium-rich organic slow-release fertilizer, it is preferred that it is mainly made up of following components proportioning by weight: chicken manure 80 parts, cattle manure 32 parts, 15 parts of pond sludge, 7 parts of Gecko excrement, 6 parts of Squama Manis excrement, fibrous biomass 44 parts, bean cake 33 parts, conch meal 8 parts, oyster shell powder 15 parts, strain 7 parts, potassium humate 23 parts, activation selenium mineral powder 28 parts, attapulgite 45 parts, polyacrylamide 2 parts.
Further, described fibrous biomass include one or more in straw, corncob, hay and dry rice straw.
Further, the Fe of addition2O3It is 1:1000 ~ 1100 with the mass ratio of selenium Ore；The calcium acetate added and the mass ratio of selenium Ore are 1:2000 ~ 2100.
Further, described strain includes at least two in lactic acid bacteria, yeast and bacillus subtilis.
The production method of a kind of selenium-rich organic slow-release fertilizer, comprises the following steps:
(1) the fibrous biomass mix homogeneously after conch meal, oyster shell powder, bean cake and pulverizing is obtained compound, take strain to dissolve, join in compound, and the moisture being diluted with water to compound is 50 ~ 60%, fermentation vat ferments 8 ~ 10 days, obtains fermentation material A；
(2) in fermentation material A, add KOH solution, PH is regulated to 7.2 ~ 7.5, is subsequently adding potassium humate, stir, then take partial activation selenium mineral powder and in chicken manure, cattle manure, pond sludge, Gecko excrement, Squama Manis excrement addition fermentation vat, stir, mixed fermentation 8 ~ 10 days, obtains fermentation material B；
(3) polyacrylamide is first dissolved in water in advance, is configured to the polyacrylamide solution that mass fraction is 0.5%, fermentation material B adds attapulgite, polyacrylamide solution and remaining activation selenium mineral powder, stirs, obtain selenium-rich organic slow-release fertilizer.
Further, described step (2) adds the activation selenium mineral powder of 1/2 ~ 2/3.
Further, in step (2) and (3), in preparing the sweat of fermentation material A and fermentation material B, every morning and afternoon are all each by material stirring 1 time.
The production method of above-described selenium-rich organic slow-release fertilizer, has the advantage that
(1) present invention is by adding fowl and animal excrement, bean cake, conch meal, oyster shell powder, activation selenium mineral powder, comprehensive nutrition is provided for crop growth, especially selenite can be replaced to provide for crop growth and to be suitable for the selenium absorbed by plant, avoid selenite pollution to soil under being not completely absorbed state, be the increasing selenium method of safety and environmental protection.
(2) selenium mineral powder is through overactivation, wherein: add the activation that ammonia can be selenium on the one hand and provide the suitable alkaline environment of a PH, make selenium element convert to soluble state, additionally, add ammonia and also can form nitrogenous fertilizer in activation process, the crops absorption to selenium and nitrogen element can be promoted by synergism；Add Fe2O3Strengthen the absorbability to selenium with calcium acetate on the one hand and form complex state selenium, prevent selenium loss of elements, fertilizer can be made to discharge selenium element in soil slowly simultaneously, crops are avoided to occur concentrating excessive resorption to affect the phenomenon of its growth, iron salt and calcium salt can be provided for plant growing on the other hand, make nutrition balanced more comprehensively.
(3) present invention employs strain organic-biological matter and fowl and animal excrement are fermented, decompose the organic compound such as high molecular weight protein therein so that it is be degraded to and be suitable for the nutritional labeling being absorbed by plants, the crops absorbance to nutrient substance can be improved.
(4) feces produced by the chicken of artificial cultivation of the present invention, cattle, Gecko and Squama Manis, can feeding feedstuff containing selenium on a small quantity in artificial cultivation process, these fowl and animal excrements all contain the selenium element of trace, additionally, Concha Ostreae also contains the selenium element of trace, these raw material reasonable compatibilities are used by the present invention again, comprehensive nutrition is provided for crops, this is to turn waste into wealth, form Mode of Circular, meanwhile, activation selenium mineral powder is formed the structure of a uniform parcel by fowl and animal excrement, prevents the loss of selenium element further.
(5) present invention also added attapulgite, polyacrylamide and potassium humate, attapulgite has multilamellar pore passage structure, the nutrient in fertilizer can be adsorbed and slowly release, polyacrylamide and potassium humate can improve soil environment, improve soil aggregate, strengthen the water conservation fertilizer conservation effect of soil, crops are made to realize the synchronization of nitrogen, phosphorus, potassium element is absorbed, simultaneously, also can maintain the inorganic selenium contained in activation selenium mineral powder survival state in soil, make crops can obtain inorganic selenium and organic selenium simultaneously, improve its nutrition and constitute.
(6) one aspect of the present invention can be effectively improved the Se content in crops, agriculture and forestry organic waste material can be recycled on the other hand, have market popularization value widely, and Social and economic benef@is notable.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described, but protection scope of the present invention is not limited to following example.
One, the preparation of selenium-rich organic slow-release fertilizer
Embodiment 1
A kind of selenium-rich organic slow-release fertilizer, is mainly made up of following components proportioning by weight: chicken manure 80 parts, cattle manure 32 parts, 15 parts of pond sludge, 7 parts of Gecko excrement, 6 parts of Squama Manis excrement, fibrous biomass 44 parts, bean cake 33 parts, conch meal 8 parts, oyster shell powder 15 parts, strain 7 parts, potassium humate 23 parts, activate selenium mineral powder 28 parts, attapulgite 45 parts, polyacrylamide 2 parts；Wherein, fibrous biomass include one or more in straw, corncob, hay and dry rice straw.
Above-described activation selenium mineral powder is by selenium ore grinding, make the selenium mineral powder of 50 ~ 100 orders, adding mass fraction by liquid-solid ratio 5ml/g is the ammonia of 2 ~ 3%, soak 72h, every 1 ~ 2h stirs once, immersion is stirred after completing while being slowly added to dust technology adjustment is 6.2 ~ 6.8 to PH, is then sequentially added into Fe2O3And calcium acetate, stirring 1h, place in baking oven and dry, drying to moisture is 7 ~ 10%, it is thus achieved that activation selenium mineral powder；Wherein, Fe2O3Addition is selenium ore quality 1/1050, the addition of calcium acetate is the 1/2050 of selenium ore quality.
The production method of above-mentioned selenium-rich organic slow-release fertilizer, comprises the following steps:
(1) the fibrous biomass mix homogeneously after conch meal, oyster shell powder, bean cake and pulverizing is obtained compound, take strain to dissolve, join in compound, and the moisture being diluted with water to compound is 50 ~ 60%, fermentation vat ferments 8 ~ 10 days, obtains fermentation material A；
(2) in fermentation material A, add KOH solution, PH is regulated to 7.2 ~ 7.5, is subsequently adding potassium humate, stir, then take in activation selenium mineral powder and chicken manure, cattle manure, pond sludge, Gecko excrement, the Squama Manis excrement addition fermentation vat of 2/3, stir, mixed fermentation 8 ~ 10 days, obtains fermentation material B；
(3) polyacrylamide is first dissolved in water in advance, is configured to the polyacrylamide solution that mass fraction is 0.5%, fermentation material B adds attapulgite, polyacrylamide solution and remaining activation selenium mineral powder, stirs, obtain selenium-rich organic slow-release fertilizer.
In step (2) and (3), in preparing the sweat of fermentation material A and fermentation material B, every morning and afternoon are all each by material stirring 1 time.
Embodiment 2
A kind of selenium-rich organic slow-release fertilizer, is mainly made up of following components proportioning by weight: chicken manure 70 parts, cattle manure 30 parts, 10 parts of pond sludge, 5 parts of Gecko excrement, 4 parts of Squama Manis excrement, fibrous biomass 35 parts, bean cake 30 parts, conch meal 5 parts, oyster shell powder 10 parts, strain 5 parts, potassium humate 20 parts, activate selenium mineral powder 30 parts, attapulgite 50 parts, polyacrylamide 3 parts；Wherein, fibrous biomass are made up of by the mass ratio of 2:1 straw and corncob；Strain includes lactic acid bacteria, yeast and bacillus subtilis.
Above-described activation selenium mineral powder is by selenium ore grinding, make the selenium mineral powder of 50 ~ 100 orders, adding mass fraction by liquid-solid ratio 6ml/g is the ammonia of 2 ~ 3%, soak 60h, every 1 ~ 2h stirs once, immersion is stirred after completing while being slowly added to dust technology adjustment is 6.2 ~ 6.8 to PH, is then sequentially added into Fe2O3And calcium acetate, stirring 1h, place in baking oven and dry, drying to moisture is 7 ~ 10%, it is thus achieved that activation selenium mineral powder；Wherein, Fe2O3Addition is selenium ore quality 1/1050, the addition of calcium acetate is the 1/2050 of selenium ore quality.
The production method of above-mentioned selenium-rich organic slow-release fertilizer, comprises the following steps:
(1) the fibrous biomass mix homogeneously after conch meal, oyster shell powder, bean cake and pulverizing is obtained compound, take strain to dissolve, join in compound, and the moisture being diluted with water to compound is 50 ~ 60%, fermentation vat ferments 8 ~ 10 days, obtains fermentation material A；
(2) in fermentation material A, add KOH solution, PH is regulated to 7.2 ~ 7.5, is subsequently adding potassium humate, stir, then take in activation selenium mineral powder and chicken manure, cattle manure, pond sludge, Gecko excrement, the Squama Manis excrement addition fermentation vat of 1/2, stir, mixed fermentation 8 ~ 10 days, obtains fermentation material B；
(3) polyacrylamide is first dissolved in water in advance, is configured to the polyacrylamide solution that mass fraction is 0.5%, fermentation material B adds attapulgite, polyacrylamide solution and remaining activation selenium mineral powder, stirs, obtain selenium-rich organic slow-release fertilizer.
Embodiment 3
A kind of selenium-rich organic slow-release fertilizer, is mainly made up of following components proportioning by weight: chicken manure 90 parts, cattle manure 38 parts, 18 parts of pond sludge, 8 parts of Gecko excrement, 7 parts of Squama Manis excrement, fibrous biomass 50 parts, bean cake 35 parts, conch meal 12 parts, oyster shell powder 16 parts, strain 8 parts, potassium humate 26 parts, activate selenium mineral powder 20 parts, attapulgite 40 parts, polyacrylamide 1 part；Wherein, fibrous biomass are made up of straw, hay and dry rice straw；Strain includes lactic acid bacteria, yeast and bacillus subtilis.
Above-described activation selenium mineral powder is by selenium ore grinding, make the selenium mineral powder of 50 ~ 100 orders, adding mass fraction by liquid-solid ratio 4ml/g is the ammonia of 2 ~ 3%, soak 48h, every 1 ~ 2h stirs once, immersion is stirred after completing while being slowly added to dust technology adjustment is 6.2 ~ 6.8 to PH, is then sequentially added into Fe2O3And calcium acetate, stirring 1h, place in baking oven and dry, drying to moisture is 7 ~ 10%, it is thus achieved that activation selenium mineral powder；Wherein, Fe2O3Addition is selenium ore quality 1/1050, the addition of calcium acetate is the 1/2050 of selenium ore quality.
The production method of above-mentioned selenium-rich organic slow-release fertilizer, comprises the following steps:
(1) the fibrous biomass mix homogeneously after conch meal, oyster shell powder, bean cake and pulverizing is obtained compound, take strain to dissolve, join in compound, and the moisture being diluted with water to compound is 50 ~ 60%, fermentation vat ferments 8 ~ 10 days, obtains fermentation material A；
(2) in fermentation material A, add KOH solution, PH is regulated to 7.2 ~ 7.5, is subsequently adding potassium humate, stir, then take in activation selenium mineral powder and chicken manure, cattle manure, pond sludge, Gecko excrement, the Squama Manis excrement addition fermentation vat of 2/3, stir, mixed fermentation 8 ~ 10 days, obtains fermentation material B；
(3) polyacrylamide is first dissolved in water in advance, is configured to the polyacrylamide solution that mass fraction is 0.5%, fermentation material B adds attapulgite, polyacrylamide solution and remaining activation selenium mineral powder, stirs, obtain selenium-rich organic slow-release fertilizer.
Two, the use of the selenium-rich organic slow-release fertilizer effect test to crops
Reference examples
Melt water corn planting base is selected to plant, mu executes farm manure 50kg/ mu as base fertilizer, every mu of plant number is 5000 strain scopes, topdress once when corn growth to 6 ~ 8 leaf phase, fertilizer adopts 10kg/ mu compound fertilizer+7.5kg/ mu carbamide+2.5kg potash fertilizer, topdressing once when Semen Maydis arrives pollination period, fertilizer adopts 10kg/ mu compound fertilizer+5kg/ mu carbamide+2kg potash fertilizer, and other are planted in the usual way again.
Embodiment 1 ~ 3
Melt water corn planting base is selected to plant, mu executes the selenium-rich organic slow-release fertilizer 50kg/ mu of embodiment 1/2/3 as base fertilizer, every mu of plant number is 5000 strain scopes, topdress once when corn growth to 6 ~ 8 leaf phase, fertilizer adopts the selenium-rich organic slow-release fertilizer+7.5kg/ mu carbamide of 10kg/ mu embodiment 1/2/3, topdressing once when Semen Maydis arrives pollination period, fertilizer adopts the selenium-rich organic slow-release fertilizer+5kg/ mu carbamide of 10kg/ mu embodiment 1/2/3, and other are planted in the usual way again.
Corn planting result of the test is shown in following table:
| Reference examples | Embodiment 1 | Embodiment 2 | Embodiment 3 | |
| Plant outward appearance | Plant viridescent succulence, branch are less | Plant viridescent succulence, branch are more | Plant viridescent succulence, branch are more | Plant viridescent succulence, branch are more |
| Seed-producing rate | 85% | 93% | 89.5% | 91.2% |
| Thousand quality (g) | 300.2 | 355.9 | 328.9 | 335.1 |
| Corn yield (kg/ mu) | 598 | 697 | 672 | 679 |
| Se content (mg/kg) | 0.005 | 0.28 | 0.29 | 0.20 |
As can be seen from the above table, utilize the Semen Maydis that the selenium-rich organic slow-release fertilizer of the present invention is planted, its Se content can reach the selenium-rich standard of country, the selenium element providing necessary can be grown for growth in humans, and this selenium-rich organic slow-release fertilizer also has significant effect of increasing production, will have boundless market prospect.
Claims (10)
1. a selenium-rich organic slow-release fertilizer, it is characterised in that it is mainly made up of following components proportioning by weight: chicken manure 70 ~ 90 parts, cattle manure 25 ~ 38 parts, 10 ~ 18 parts of pond sludge, 5 ~ 8 parts of Gecko excrement, 4 ~ 7 parts of Squama Manis excrement, fibrous biomass 35 ~ 50 parts, bean cake 30 ~ 35 parts, conch meal 5 ~ 12 parts, oyster shell powder 10 ~ 16 parts, strain 5 ~ 8 parts, potassium humate 20 ~ 26 parts, activation selenium mineral powder 20 ~ 30 parts, attapulgite 30 ~ 50 parts, polyacrylamide 1 ~ 3 part.
2. selenium-rich organic slow-release fertilizer according to claim 1, it is characterised in that:
Described activation selenium mineral powder is by selenium ore grinding, make the selenium mineral powder of 50 ~ 100 orders, adding mass fraction by liquid-solid ratio 4 ~ 6ml/g is the ammonia of 2 ~ 3%, soak 48 ~ 72h, every 1 ~ 2h stirs once, immersion is stirred after completing while being slowly added to dust technology adjustment is 6.2 ~ 6.8 to PH, is then sequentially added into Fe2O3And calcium acetate, stirring 1h, place in baking oven and dry, drying to moisture is 7 ~ 10%, it is thus achieved that activation selenium mineral powder.
3. selenium-rich organic slow-release fertilizer according to claim 1, it is characterised in that:
It is mainly made up of following components proportioning by weight: chicken manure 80 parts, cattle manure 32 parts, 15 parts of pond sludge, 7 parts of Gecko excrement, 6 parts of Squama Manis excrement, fibrous biomass 44 parts, bean cake 33 parts, conch meal 8 parts, oyster shell powder 15 parts, strain 7 parts, potassium humate 23 parts, activation selenium mineral powder 28 parts, attapulgite 45 parts, polyacrylamide 2 parts.
4. selenium-rich organic slow-release fertilizer according to claim 1, it is characterised in that:
Described fibrous biomass include one or more in straw, corncob, hay and dry rice straw.
5. selenium-rich organic slow-release fertilizer according to claim 2, it is characterised in that:
The Fe added2O3It is 1:1500 ~ 1600 with the mass ratio of selenium Ore.
6. selenium-rich organic slow-release fertilizer according to claim 2, it is characterised in that:
The calcium acetate added and the mass ratio of selenium Ore are 1:2000 ~ 2100.
7. selenium-rich organic slow-release fertilizer according to claim 2, it is characterised in that:
Described strain includes at least two in lactic acid bacteria, yeast and bacillus subtilis.
8. the production method of a kind of selenium-rich organic slow-release fertilizer as described in any one of claim 1 ~ 7, it is characterised in that comprise the following steps:
(1) the fibrous biomass mix homogeneously after conch meal, oyster shell powder, bean cake and pulverizing is obtained compound, take strain to dissolve, join in compound, and the moisture being diluted with water to compound is 50 ~ 60%, fermentation vat ferments 8 ~ 10 days, obtains fermentation material A；
(2) in fermentation material A, add KOH solution, PH is regulated to 7.2 ~ 7.5, is subsequently adding potassium humate, stir, then take partial activation selenium mineral powder and in chicken manure, cattle manure, pond sludge, Gecko excrement, Squama Manis excrement addition fermentation vat, stir, mixed fermentation 8 ~ 10 days, obtains fermentation material B；
(3) polyacrylamide is first dissolved in water in advance, is configured to the polyacrylamide solution that mass fraction is 0.5%, fermentation material B adds attapulgite, polyacrylamide solution and remaining activation selenium mineral powder, stirs, obtain selenium-rich organic slow-release fertilizer.
9. the production method of selenium-rich organic slow-release fertilizer according to claim 8, it is characterised in that:
Described step (2) adds the activation selenium mineral powder of 1/2 ~ 2/3.
10. the production method of selenium-rich organic slow-release fertilizer according to claim 9, it is characterised in that:
In described step (2) and (3), in preparing the sweat of fermentation material A and fermentation material B, every morning and afternoon are all each by material stirring 1 time.
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| CN106396912A (en) * | 2016-08-30 | 2017-02-15 | 廖晖 | Selenium-rich slow-release fertilizer and preparation method thereof |
| CN106431657A (en) * | 2016-09-28 | 2017-02-22 | 刘杰 | Selenium-enriched stable organic fertilizer |
| CN106478292A (en) * | 2016-09-28 | 2017-03-08 | 刘杰 | A kind of fruit and vegetable Selenium-rich composite fertilizer |
| CN106478231A (en) * | 2016-09-28 | 2017-03-08 | 刘杰 | A kind of Selenium-rich composite fertilizer |
| CN109020739A (en) * | 2018-10-26 | 2018-12-18 | 杭州中非生物科技有限公司 | The organic preparation method of vegetable fertilizer and Nutrition Soil |
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