CN105777251A - Selenium-rich organic slow-release fertilizer and production process thereof - Google Patents
Selenium-rich organic slow-release fertilizer and production process thereof Download PDFInfo
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- CN105777251A CN105777251A CN201610073643.8A CN201610073643A CN105777251A CN 105777251 A CN105777251 A CN 105777251A CN 201610073643 A CN201610073643 A CN 201610073643A CN 105777251 A CN105777251 A CN 105777251A
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- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 229910052711 selenium Inorganic materials 0.000 title claims abstract description 97
- 239000011669 selenium Substances 0.000 title claims abstract description 97
- 239000003337 fertilizer Substances 0.000 title claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 91
- 239000010871 livestock manure Substances 0.000 claims abstract description 59
- 210000003608 fece Anatomy 0.000 claims abstract description 57
- 238000000855 fermentation Methods 0.000 claims abstract description 44
- 230000004151 fermentation Effects 0.000 claims abstract description 44
- 150000003342 selenium Chemical class 0.000 claims abstract description 35
- 241000283966 Pholidota <mammal> Species 0.000 claims abstract description 24
- 239000002028 Biomass Substances 0.000 claims abstract description 21
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000011591 potassium Substances 0.000 claims abstract description 19
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 19
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 16
- 229920001661 Chitosan Polymers 0.000 claims abstract description 16
- 229960000892 attapulgite Drugs 0.000 claims abstract description 16
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 16
- 102000002322 Egg Proteins Human genes 0.000 claims abstract description 15
- 108010000912 Egg Proteins Proteins 0.000 claims abstract description 15
- 241000287828 Gallus gallus Species 0.000 claims abstract description 15
- 210000003278 egg shell Anatomy 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims abstract description 14
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 36
- 239000011707 mineral Substances 0.000 claims description 36
- 239000000203 mixture Substances 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 30
- 238000003756 stirring Methods 0.000 claims description 30
- 240000008042 Zea mays Species 0.000 claims description 13
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 13
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 13
- 235000005822 corn Nutrition 0.000 claims description 13
- VSGNNIFQASZAOI-UHFFFAOYSA-L calcium acetate Chemical compound [Ca+2].CC([O-])=O.CC([O-])=O VSGNNIFQASZAOI-UHFFFAOYSA-L 0.000 claims description 11
- 239000001639 calcium acetate Substances 0.000 claims description 11
- 235000011092 calcium acetate Nutrition 0.000 claims description 11
- 229960005147 calcium acetate Drugs 0.000 claims description 11
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 11
- 238000002791 soaking Methods 0.000 claims description 10
- 239000010902 straw Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 6
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 229910017604 nitric acid Inorganic materials 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 244000063299 Bacillus subtilis Species 0.000 claims description 4
- 235000014469 Bacillus subtilis Nutrition 0.000 claims description 4
- 240000007594 Oryza sativa Species 0.000 claims description 4
- 235000007164 Oryza sativa Nutrition 0.000 claims description 4
- 240000004808 Saccharomyces cerevisiae Species 0.000 claims description 4
- 235000009566 rice Nutrition 0.000 claims description 4
- 241000186660 Lactobacillus Species 0.000 claims description 3
- 229940039696 lactobacillus Drugs 0.000 claims description 3
- 230000003203 everyday effect Effects 0.000 claims 1
- 239000003895 organic fertilizer Substances 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 235000010755 mineral Nutrition 0.000 description 27
- 241000196324 Embryophyta Species 0.000 description 11
- 241000283690 Bos taurus Species 0.000 description 10
- 241000270290 Gekkota Species 0.000 description 8
- 235000016709 nutrition Nutrition 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 206010028980 Neoplasm Diseases 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- 239000004202 carbamide Substances 0.000 description 4
- 235000015097 nutrients Nutrition 0.000 description 4
- 230000035764 nutrition Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 201000011510 cancer Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 244000144972 livestock Species 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 230000010152 pollination Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229940082569 selenite Drugs 0.000 description 2
- MCAHWIHFGHIESP-UHFFFAOYSA-L selenite(2-) Chemical compound [O-][Se]([O-])=O MCAHWIHFGHIESP-UHFFFAOYSA-L 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 208000035240 Disease Resistance Diseases 0.000 description 1
- 241001057636 Dracaena deremensis Species 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- 208000002720 Malnutrition Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 206010039921 Selenium deficiency Diseases 0.000 description 1
- 208000000453 Skin Neoplasms Diseases 0.000 description 1
- 238000001994 activation Methods 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 210000001072 colon Anatomy 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 201000005202 lung cancer Diseases 0.000 description 1
- 208000020816 lung neoplasm Diseases 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000001071 malnutrition Effects 0.000 description 1
- 235000000824 malnutrition Nutrition 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000618 nitrogen fertilizer Substances 0.000 description 1
- 208000015380 nutritional deficiency disease Diseases 0.000 description 1
- 210000001672 ovary Anatomy 0.000 description 1
- 210000000496 pancreas Anatomy 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 210000002307 prostate Anatomy 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 201000000849 skin cancer Diseases 0.000 description 1
- 239000002688 soil aggregate Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- C05D9/02—Other inorganic fertilisers containing trace elements
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
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, 5-8 parts of gecko manure, 4-7 parts of pangolin manure, 40-60 parts of fiber-containing biomass, 5-10 parts of egg shell powder, 6-15 parts of clam 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 2-5 parts of chitosan.A production process of the selenium-rich organic slow-release fertilizer includes the following steps that 1, egg shell powder, clam shell powder, oyster shell powder, 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, chicken manure, cow manure, gecko manure and pangolin manure are added and subjected to secondary fermentation; 3, attapulgite, chitosan 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 invention relates to the technical field of agriculture, in particular to a selenium-rich organic slow-release fertilizer and a production process thereof.
Background
Selenium is an indispensable trace element for human bodies, is an antioxidant with strong capability, can effectively remove carcinogenic factors, namely free radicals, and has the reputation of 'king of cancer resistance'. Scientists have investigated the relationship between the cancer mortality rate and the selenium intake of each person in 20 countries, and have found that the cancer incidence and mortality rate are increased due to the low selenium intake, and particularly, the cancers of colon, pancreas, ovary, prostate, and men, such as lung cancer and skin cancer, are the most significant. According to statistics, 42 countries and regions in the world are lack of selenium; an investigation conducted by the Chinese academy of nutrition shows that about 7 million people in two thirds of the area of China are in a state of selenium deficiency. The Chinese academy of nutrition recommends that the daily selenium intake of all people is 50-200 micrograms, but the daily selenium intake of adults in China is only 26-32 micrograms at present, and the condition of selenium malnutrition generally exists in China.
Pangolin scales and geckos are wild animal medicinal materials, and the phenomenon of short supply and short demand appears for a long time due to the fact that the demand is continuously increased and the yield is continuously reduced. Guangxi is the main producing area of pangolin scales and geckos, the geographical environment and climate of Guangxi are both suitable for the cultivation and propagation of pangolin scales and geckos, geckos and pangolin scales are successfully cultivated at present, in order to improve the disease resistance of the geckos and the pangolins, during the artificial cultivation process, breeders can add selenium-containing feed or food, the excrement discharged by the geckos and the pangolin scales also contains trace selenium, if the excrement of the geckos and the pangolin scales can be further utilized, selenium-rich organic slow-release fertilizer is prepared, the circular economy mode can be favorably formed, and meanwhile, the cultivation cost of cultivating the geckos and the pangolin scales is reduced.
Disclosure of Invention
The invention provides a selenium-rich organic slow-release fertilizer and a production process thereof, wherein excrement of gecko and pangolin is recycled and matched with activated selenium mineral powder to prepare the selenium-rich organic slow-release fertilizer which is beneficial to plant absorption.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a selenium-rich organic slow release fertilizer mainly comprises the following components in parts by weight: 70-90 parts of chicken manure, 15-22 parts of cow manure, 5-8 parts of gecko manure, 4-7 parts of pangolin manure, 40-60 parts of fibrous biomass, 5-10 parts of egg shell powder, 6-15 parts of clam shell powder, 10-16 parts of oyster shell powder, 5-8 parts of strain, 20-26 parts of potassium humate, 20-30 parts of activated selenium mineral powder, 40-60 parts of attapulgite and 3-6 parts of chitosan.
Further, the activated selenium ore powder is prepared by crushing selenium ore powder to prepare selenium ore powder with 50-100 meshes, adding ammonia water with the mass fraction of 2-3% according to the liquid-solid ratio of 4-6 ml/g, soaking for 48-72 hours, stirring once every 1-2 hours, stirring while slowly adding dilute nitric acid to adjust the pH to 6.2-6.8 after soaking is completed, and then sequentially adding Fe2O3And calcium acetate, stirring for 1h, then placing into an oven for drying until the moisture content is 7-10%, and obtaining the activated selenium mineral powder.
The selenium-rich organic slow release fertilizer is preferably prepared from the following components in parts by weight: 80 parts of chicken manure, 19 parts of cow manure, 7 parts of gecko manure, 6 parts of pangolin manure, 50 parts of biomass containing fibers, 8 parts of egg shell powder, 12 parts of clam shell powder, 13 parts of oyster shell powder, 7 parts of strain, 23 parts of potassium humate, 28 parts of activated selenium mineral powder, 46 parts of attapulgite and 5 parts of chitosan.
Further, the fibrous biomass comprises one or more of straw, corn cobs, rice hulls, dry straw, and bark.
Further, added Fe2O3The mass ratio of the selenium ore to the selenium ore is 1: 1000-1100; the mass ratio of the added calcium acetate to the selenium ore is 1: 2000-2100.
Further, the bacterial species include at least two of lactic acid bacteria, yeast and bacillus subtilis.
A production process of a selenium-rich organic slow release fertilizer comprises the following steps:
(1) uniformly mixing egg shell powder, clam shell powder, oyster shell powder and crushed biomass containing fibers to obtain a mixture, dissolving a strain, adding the dissolved strain into the mixture, adding water to dilute the mixture until the moisture content of the mixture is 50-60%, and fermenting the mixture in a fermentation tank for 8-10 days to obtain a fermentation material A;
(2) adding a KOH solution into the fermentation material A, adjusting the pH value to 7.2-7.5, then adding potassium humate, uniformly stirring, adding part of activated selenium mineral powder, chicken manure, cow manure, gecko manure and pangolin manure into a fermentation tank, uniformly stirring, and carrying out mixed fermentation for 8-10 days to obtain a fermentation material B;
(3) and adding attapulgite, chitosan and the rest activated selenium mineral powder into the fermentation material B, and uniformly stirring to obtain the selenium-rich organic slow-release fertilizer.
Further, 1/2-2/3 of activated selenium ore powder is added in the step (2).
Further, in the steps (2) and (3), in the fermentation process for preparing the fermented material A and the fermented material B, the materials are stirred for 1 time each day in the morning and afternoon.
The production process of the selenium-rich organic slow release fertilizer has the following advantages:
(1) by adding the livestock excrement, the egg shell powder, the clam shell powder, the oyster shell powder and the activated selenium mineral powder, the invention provides comprehensive nutrition for the growth of crops, can particularly replace selenite to provide selenium which is suitable for being absorbed by plants for the growth of crops, avoids the pollution of the selenite to soil under the state of not being completely absorbed, and is a safe and environment-friendly selenium increasing method.
(2) Activating selenium mineral powder, wherein: adding ammonia water can provide an alkaline environment with proper pH for activating selenium to convert selenium element into soluble state, and adding ammoniaThe water can also form a nitrogen fertilizer in the activation process, and can synergistically promote the absorption of selenium and nitrogen elements by crops; adding Fe2O3And calcium acetate, on one hand, the adsorption capacity of the fertilizer on selenium is increased to form complex selenium, so that selenium loss is prevented, and on the other hand, the fertilizer can slowly release the selenium in soil, so that the phenomenon that crops are excessively absorbed in a concentrated manner to influence the growth of the crops is avoided, and on the other hand, iron salt and calcium salt can be provided for the growth of the plants, so that the nutrition is more comprehensive and balanced.
(3) The invention adopts the strain to ferment the organic biomass and the livestock manure, decomposes organic compounds such as macromolecular protein and the like in the organic biomass and the livestock manure, degrades the organic compounds into nutrient components which are easy to be absorbed by plants, and can improve the absorption rate of crops to nutrient substances.
(4) The excrement generated by the artificially cultured chicken, cattle, gecko and pangolin adopted by the invention can be fed with a small amount of selenium-containing feed in the artificial culture process, the excrement of the poultry and the livestock contains trace selenium element, and the clam shell and the oyster shell which are added also contain trace selenium element.
(5) The invention also adds the attapulgite, the chitosan and the potassium humate, the attapulgite has a multilayer pore structure, can adsorb nutrient elements in the organic fertilizer and slowly release the nutrient elements, the chitosan and the potassium humate can improve the soil environment, improve the soil aggregate structure, enhance the air permeability, the water retention and the fertilizer retention of the soil, ensure that crops synchronously absorb elements such as nitrogen, potassium, phosphorus and the like, simultaneously can maintain the storage state of inorganic selenium contained in activated selenium mineral powder in the soil, ensure that the crops can simultaneously obtain the inorganic selenium and the organic selenium, and improve the nutritional composition of the crops.
(6) The selenium-enriched crop selenium-enriched fertilizer can effectively improve the selenium content in crops, can recycle agricultural and forestry wastes, and has wide market popularization value and remarkable social and economic benefits.
Detailed Description
The present invention is further illustrated by the following specific examples, but the scope of the present invention is not limited to the following examples.
Preparation of selenium-rich organic slow-release fertilizer
Example 1
A selenium-rich organic slow release fertilizer mainly comprises the following components in parts by weight: 80 parts of chicken manure, 19 parts of cow manure, 7 parts of gecko manure, 6 parts of pangolin manure, 50 parts of biomass containing fibers, 8 parts of egg shell powder, 12 parts of clam shell powder, 13 parts of oyster shell powder, 7 parts of strain, 23 parts of potassium humate, 28 parts of activated selenium mineral powder, 46 parts of attapulgite and 5 parts of chitosan; wherein the fibrous biomass comprises one or more of straw, corn cobs, rice hulls, dried straw, and bark.
The activated selenium mineral powder is prepared by crushing selenium mineral powder to prepare selenium mineral powder with 50-100 meshes, adding ammonia water with the mass fraction of 2-3% according to the liquid-solid ratio of 5ml/g, soaking for 72 hours, stirring once every 1-2 hours, after soaking, slowly adding dilute nitric acid while stirring to adjust the pH to 6.2-6.8, and then sequentially adding Fe2O3Stirring the mixture and calcium acetate for 1 hour, and then putting the mixture into an oven for drying until the moisture content is 7-10%, so as to obtain activated selenium mineral powder; wherein, Fe2O3The addition amount of (a) is 1/1050 of the mass of the selenium ore, and the addition amount of calcium acetate is 1/2050 of the mass of the selenium ore.
The production process of the selenium-rich organic slow release fertilizer comprises the following steps:
(1) uniformly mixing egg shell powder, clam shell powder, oyster shell powder and crushed biomass containing fibers to obtain a mixture, dissolving a strain, adding the dissolved strain into the mixture, adding water to dilute the mixture until the moisture content of the mixture is 50-60%, and fermenting the mixture in a fermentation tank for 8-10 days to obtain a fermentation material A;
(2) adding a KOH solution into the fermentation material A, adjusting the pH value to 7.2-7.5, then adding potassium humate, uniformly stirring, adding 2/3 activated selenium ore powder, chicken manure, cow manure, gecko manure and pangolin manure into a fermentation tank, uniformly stirring, and carrying out mixed fermentation for 8-10 days to obtain a fermentation material B;
(3) and adding attapulgite, chitosan and the rest activated selenium mineral powder into the fermentation material B, and uniformly stirring to obtain the selenium-rich organic slow-release fertilizer.
In the steps (2) and (3), in the fermentation process for preparing the fermentation material A and the fermentation material B, the materials are respectively stirred for 1 time every morning and afternoon.
Example 2
A selenium-rich organic slow release fertilizer mainly comprises the following components in parts by weight: 70 parts of chicken manure, 15 parts of cow manure, 5 parts of gecko manure, 4 parts of pangolin manure, 50 parts of biomass containing fibers, 5 parts of egg shell powder, 6 parts of clam shell powder, 10 parts of oyster shell powder, 5 parts of strain, 20 parts of potassium humate, 30 parts of activated selenium mineral powder, 40 parts of attapulgite and 3 parts of chitosan; wherein the biomass containing fibers consists of straws, barks and rice husks according to the mass ratio of 10:1: 1; the strain comprises lactobacillus, yeast and Bacillus subtilis.
The activated selenium mineral powder is prepared by crushing selenium mineral powder to prepare selenium mineral powder with 50-100 meshes, adding ammonia water with the mass fraction of 2-3% according to the liquid-solid ratio of 6ml/g, soaking for 60 hours, stirring once every 1-2 hours, after soaking, slowly adding dilute nitric acid while stirring to adjust the pH to 6.2-6.8, and then sequentially adding Fe2O3Stirring the mixture and calcium acetate for 1 hour, and then putting the mixture into an oven for drying until the moisture content is 7-10%, so as to obtain activated selenium mineral powder; wherein, Fe2O3The addition amount of (a) is 1/1050 of the mass of the selenium ore, and the addition amount of calcium acetate is 1/2050 of the mass of the selenium ore.
The production process of the selenium-rich organic slow release fertilizer comprises the following steps:
(1) uniformly mixing egg shell powder, clam shell powder, oyster shell powder and crushed biomass containing fibers to obtain a mixture, dissolving a strain, adding the dissolved strain into the mixture, adding water to dilute the mixture until the moisture content of the mixture is 50-60%, and fermenting the mixture in a fermentation tank for 8-10 days to obtain a fermentation material A;
(2) adding a KOH solution into the fermentation material A, adjusting the pH value to 7.2-7.5, then adding potassium humate, uniformly stirring, adding 1/2 activated selenium ore powder, chicken manure, cow manure, gecko manure and pangolin manure into a fermentation tank, uniformly stirring, and carrying out mixed fermentation for 8-10 days to obtain a fermentation material B;
(3) and adding attapulgite, chitosan and the rest activated selenium mineral powder into the fermentation material B, and uniformly stirring to obtain the selenium-rich organic slow-release fertilizer.
Example 3
A selenium-rich organic slow release fertilizer mainly comprises the following components in parts by weight: 90 parts of chicken manure, 22 parts of cow manure, 8 parts of gecko manure, 7 parts of pangolin manure, 60 parts of biomass containing fibers, 10 parts of egg shell powder, 15 parts of clam shell powder, 16 parts of oyster shell powder, 8 parts of strain, 26 parts of potassium humate, 20 parts of activated selenium mineral powder, 60 parts of attapulgite and 6 parts of chitosan; wherein the biomass containing fibers consists of straws, barks and dry straws in a mass ratio of 8:1: 5; the strain comprises lactobacillus, yeast and Bacillus subtilis.
The activated selenium mineral powder is prepared by crushing selenium mineral powder to prepare selenium mineral powder with 50-100 meshes, adding ammonia water with the mass fraction of 2-3% according to the liquid-solid ratio of 4ml/g, soaking for 48 hours, stirring once every 1-2 hours, after soaking, slowly adding dilute nitric acid while stirring to adjust the pH to 6.2-6.8, and then sequentially adding Fe2O3Stirring the mixture and calcium acetate for 1 hour, and then putting the mixture into an oven for drying until the moisture content is 7-10%, so as to obtain activated selenium mineral powder; wherein,Fe2O3the addition amount of (a) is 1/1050 of the mass of the selenium ore, and the addition amount of calcium acetate is 1/2050 of the mass of the selenium ore.
The production process of the selenium-rich organic slow release fertilizer comprises the following steps:
(1) uniformly mixing egg shell powder, clam shell powder, oyster shell powder and crushed biomass containing fibers to obtain a mixture, dissolving a strain, adding the dissolved strain into the mixture, adding water to dilute the mixture until the moisture content of the mixture is 50-60%, and fermenting the mixture in a fermentation tank for 8-10 days to obtain a fermentation material A;
(2) adding a KOH solution into the fermentation material A, adjusting the pH value to 7.2-7.5, then adding potassium humate, uniformly stirring, adding 2/3 activated selenium ore powder, chicken manure, cow manure, gecko manure and pangolin manure into a fermentation tank, uniformly stirring, and carrying out mixed fermentation for 8-10 days to obtain a fermentation material B;
(3) and adding attapulgite, chitosan and the rest activated selenium mineral powder into the fermentation material B, and uniformly stirring to obtain the selenium-rich organic slow-release fertilizer.
Second, effect test of application of selenium-rich organic slow-release fertilizer to crops
Comparative example
A certain corn planting base with water is selected for planting, 50kg of farmyard manure per mu is applied to each mu to serve as base fertilizer, the number of plants per mu is 5000, when the corn grows to 6-8 leaf stages, top dressing is performed once, the fertilizer is 10kg of compound fertilizer per mu, 7.5kg of urea per mu and 2.5kg of potassium fertilizer, when the corn reaches the pollination stage, top dressing is performed once, the fertilizer is 10kg of compound fertilizer per mu, 5kg of urea per mu and 2kg of potassium fertilizer, and the other corn plants are planted in a conventional mode.
Examples 1 to 3
A certain corn planting base is selected to be planted by melting water, 50 kg/mu of the selenium-rich organic slow-release fertilizer of the embodiment 1/2/3 is applied per mu to serve as a base fertilizer, the number of plants per mu is 5000, when the corn grows to 6-8 leaf stages, top dressing is carried out once, the fertilizer is the selenium-rich organic slow-release fertilizer of the embodiment 1/2/3 and is +7.5 kg/mu of urea, when the corn reaches a pollination stage, top dressing is carried out once again, the fertilizer is the selenium-rich organic slow-release fertilizer of the embodiment 1/2/3 and is +5 kg/mu of urea, and the other corn is planted in a conventional mode.
The corn planting test results are shown in the following table:
| comparative example | Example 1 | Example 2 | Example 3 | |
| Plant appearance | The plants are green and succulent, and have less branches | The plants are green, succulent and have more branches | The plants are green, succulent and have more branches | The plants are green, succulent and have more branches |
| Seed yield | 85% | 93.2% | 89.2% | 91.0% |
| Thousand seed mass (g) | 300.2 | 355.8 | 325.3 | 336.9 |
| Corn yield (kg/mu) | 598 | 699 | 670 | 676 |
| Selenium content (mg/kg) | 0.005 | 0.28 | 0.29 | 0.21 |
From the above table, it can be seen that the selenium content of the corn planted by using the selenium-rich organic slow release fertilizer can reach the national selenium-rich standard, the selenium-rich organic slow release fertilizer can provide necessary selenium for the growth and development of human bodies, and the selenium-rich organic slow release fertilizer also has an obvious yield increase effect and has a very wide market prospect.
Claims (10)
1. The selenium-rich organic slow-release fertilizer is characterized by mainly comprising the following components in parts by weight: 70-90 parts of chicken manure, 15-22 parts of cow manure, 5-8 parts of gecko manure, 4-7 parts of pangolin manure, 40-60 parts of fibrous biomass, 5-10 parts of egg shell powder, 6-15 parts of clam shell powder, 10-16 parts of oyster shell powder, 5-8 parts of strain, 20-26 parts of potassium humate, 20-30 parts of activated selenium mineral powder, 40-60 parts of attapulgite and 3-6 parts of chitosan.
2. The selenium-rich organic slow release fertilizer of claim 1, characterized in that:
the activated selenium mineral powder is prepared by crushing selenium mineral powder to prepare selenium mineral powder with 50-100 meshes, adding ammonia water with the mass fraction of 2-3% according to the liquid-solid ratio of 4-6 ml/g, soaking for 48-72 hours, stirring once every 1-2 hours, after soaking, slowly adding dilute nitric acid while stirring to adjust the pH to 6.2-6.8, and then sequentially adding Fe2O3And calcium acetate, stirring for 1h, then placing into an oven for drying until the moisture content is 7-10%, and obtaining the activated selenium mineral powder.
3. The selenium-rich organic slow release fertilizer of claim 1, characterized in that:
the composition mainly comprises the following components in parts by weight: 80 parts of chicken manure, 19 parts of cow manure, 7 parts of gecko manure, 6 parts of pangolin manure, 50 parts of biomass containing fibers, 8 parts of egg shell powder, 12 parts of clam shell powder, 13 parts of oyster shell powder, 7 parts of strain, 23 parts of potassium humate, 28 parts of activated selenium mineral powder, 46 parts of attapulgite and 5 parts of chitosan.
4. The selenium-rich organic slow release fertilizer of claim 1, characterized in that:
the fibrous biomass comprises one or more of straw, corn cobs, rice hulls, dried straw, and bark.
5. The selenium-rich organic slow release fertilizer of claim 2, characterized in that:
added Fe2O3The mass ratio of the selenium ore to the selenium ore is 1: 1500-1600.
6. The selenium-rich organic slow release fertilizer of claim 2, characterized in that:
the mass ratio of the added calcium acetate to the selenium ore is 1: 2000-2100.
7. The selenium-rich organic slow release fertilizer of claim 2, characterized in that:
the strain comprises at least two of lactobacillus, yeast and bacillus subtilis.
8. The production process of the selenium-rich organic slow release fertilizer as claimed in any one of claims 1 to 7, characterized by comprising the following steps:
(1) uniformly mixing egg shell powder, clam shell powder, oyster shell powder and crushed biomass containing fibers to obtain a mixture, dissolving a strain, adding the dissolved strain into the mixture, adding water to dilute the mixture until the moisture content of the mixture is 50-60%, and fermenting the mixture in a fermentation tank for 8-10 days to obtain a fermentation material A;
(2) adding a KOH solution into the fermentation material A, adjusting the pH value to 7.2-7.5, then adding potassium humate, uniformly stirring, adding part of activated selenium mineral powder, chicken manure, cow manure, gecko manure and pangolin manure into a fermentation tank, uniformly stirring, and carrying out mixed fermentation for 8-10 days to obtain a fermentation material B;
(3) and adding attapulgite, chitosan and the rest activated selenium mineral powder into the fermentation material B, and uniformly stirring to obtain the selenium-rich organic slow-release fertilizer.
9. The production process of the selenium-rich organic slow release fertilizer as claimed in claim 8, characterized in that:
and (3) adding 1/2-2/3 of activated selenium mineral powder in the step (2).
10. The production process of the selenium-rich organic slow release fertilizer as claimed in claim 9, characterized in that:
in the steps (2) and (3), in the fermentation process for preparing the fermentation material A and the fermentation material B, the materials are respectively stirred for 1 time in the morning and in the afternoon every day.
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| CN106478292A (en) * | 2016-09-28 | 2017-03-08 | 刘杰 | A kind of fruit and vegetable Selenium-rich composite fertilizer |
| CN106542879A (en) * | 2016-10-13 | 2017-03-29 | 高鹏 | A kind of Fructus Foeniculi Efficient Cultivation fertilizer and preparation method thereof |
| CN106542880A (en) * | 2016-10-13 | 2017-03-29 | 高鹏 | One kind is conducive to improving photosynthetic high-efficiency sustained-release fertilizer of Flos Tagetis Erectae and preparation method thereof |
| CN106542881A (en) * | 2016-10-13 | 2017-03-29 | 高鹏 | A kind of late-maturing Citrus Efficient Cultivation slow release fertilizer and preparation method thereof |
| CN106588327A (en) * | 2016-12-07 | 2017-04-26 | 刘杰 | Se-enriched plant growth agent |
| CN106905076A (en) * | 2017-03-14 | 2017-06-30 | 广西壮族自治区农业科学院农业资源与环境研究所 | A kind of selenium-enriched high-calcium organic fertilizer and preparation method and application |
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| CN108249976A (en) * | 2018-01-11 | 2018-07-06 | 华中农业大学 | A kind of method using selenium ore deposit production high-concentration water-soluble foliar fertilizer containing selenium |
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| CN108249976A (en) * | 2018-01-11 | 2018-07-06 | 华中农业大学 | A kind of method using selenium ore deposit production high-concentration water-soluble foliar fertilizer containing selenium |
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