CN106966796A - A kind of paddy rice base applies microencapsulation selenium-rich fertilizer and preparation method thereof - Google Patents

A kind of paddy rice base applies microencapsulation selenium-rich fertilizer and preparation method thereof Download PDF

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Publication number
CN106966796A
CN106966796A CN201710221301.0A CN201710221301A CN106966796A CN 106966796 A CN106966796 A CN 106966796A CN 201710221301 A CN201710221301 A CN 201710221301A CN 106966796 A CN106966796 A CN 106966796A
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selenium
fertilizer
microencapsulation
paddy rice
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房兴林
房晓涛
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Anhui Kang Mu International Fertilizer Ltd By Share Ltd
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Anhui Kang Mu International Fertilizer Ltd By Share Ltd
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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
    • C05D9/02—Other inorganic fertilisers containing trace elements
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B17/00—Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
    • 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
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/30—Layered or coated, e.g. dust-preventing coatings

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Fertilizers (AREA)

Abstract

Microencapsulation selenium-rich fertilizer is applied the invention discloses a kind of paddy rice base, including core and wall material, the weight ratio of core and wall material is 70 80：20‑30；Wherein, core raw material composition includes：Selenium fertilizer, sulfate, nitrogenous fertilizer, potash fertilizer, phosphate fertilizer, biological bacteria, peat, trace mineral supplement, wall material are modified rice residue protein；The invention also discloses the preparation method that a kind of paddy rice base applies microencapsulation selenium-rich fertilizer.The present invention uses microcapsules technology, to be modified rice residue protein as wall material, sulphate complex selenium fertilizer is added in core to apply together, rice root is improved to transport to the absorption of selenium element and upwards, avoid the fixation to selenium, se use efficiency is improved, microcapsules are that fertilizer efficiency slowly discharges, and meet crop in demand of each growth period to nutrition.

Description

A kind of paddy rice base applies microencapsulation selenium-rich fertilizer and preparation method thereof
Technical field
Microencapsulation selenium-rich fertilizer and its preparation side are applied the present invention relates to selenium-rich fertilizer technology field, more particularly to a kind of paddy rice base Method.
Background technology
Selenium is the important component of part antioxidase and selenoprotein in human body.Research shows that selenium has a variety of important Physiological function, such as protect cardiovascular and cardiac muscle healthy, anti-oxidant, cancer-resisting.Human body selenium deficiency can cause as Keshan disease, A variety of diseases such as cardiovascular and cerebrovascular diseases, cancer, hypertension.Selenium can not be generated in vivo, and the selenium of needed by human body can only be taken the photograph from food Take.The area of China 72% belongs to selenium deficiency or low selenium area, and national about 2/3rds populations have different degrees of selenium intake It is not enough.Although nutrient necessary to selenium is not plant, plant is key link and human body in nature selenium ecological circulation The direct sources of selenium.Se content is generally relatively low in natural food, and it is benefit common at present to be carried out biological reinforced by technique of enriched selenium Selenium mode.
Selenium-rich fertilizer has proved to be a kind of safe, inexpensive, efficiently convenient selenium-rich means to plant reinforcing selenium.In low selenium Area, the method such as the regulation of plant Se content can take root to apply, foliage-spray, seed soaking or seed dressing, the raising root of plant, stem, leaf, The Se content at the positions such as fruit, to meet the psychological need of humans and animals.Current selenium-rich fertilizer can be divided into by the difference of fertilization mode Blade face selenium-rich fertilizer and base apply selenium-rich fertilizer, although selenium-rich fertilizer in blade face is to reduce dose, improve the utilization rate of selenium, avoid soil to selenium Fixation, but there is certain potential safety hazard.Due to solidification of the root to selenium element so that selenium element can not be good Transported toward cauline leaf is always that influence base applies the key factor that selenium-rich fertilizer is promoted.Therefore, improve root selenium element absorption and upwards Turn-over capacity be conducive to base apply selenium-rich fertilizer to fertilizer efficiency fruit, improve the market competitiveness.
The content of the invention
The present invention proposes a kind of paddy rice base and applies microencapsulation selenium-rich fertilizer and preparation method thereof, to be modified rice residue protein as wall Add sulfate in material, core to use cooperatively with selenium fertilizer, both rational proportions of control, sulfate promotes selenate by root Transported to overground part, it is to avoid fixation to selenium, and environment-friendly degradable, improve and give fertilizer efficiency fruit, possess effect of increasing production.
A kind of paddy rice base proposed by the present invention applies the weight of microencapsulation selenium-rich fertilizer, including core and wall material, core and wall material Amount is than being 70-80：20-30；Wherein, core raw material composition includes：Selenium fertilizer, sulfate, nitrogenous fertilizer, potash fertilizer, phosphate fertilizer, biological bacteria, mud Charcoal, trace mineral supplement, wall material are modified rice residue protein.
Preferably, selenium fertilizer is selenate and selenite.
Preferably, selenate and selenite weight ratio are 1：9-11.
Preferably, sulfate is one or both of potassium sulfide, ammonium sulfate, magnesium sulfate, sodium sulphate thing mixed above.
Preferably, the mol ratio of selenium fertilizer and sulfate is 1.2-3.5：4-5.
Preferably, paddy rice base is applied in microencapsulation selenium-rich fertilizer, and nitrogen content is 13-18wt%, K2O content is 12-15wt%, P2O5Content is 15-17wt%, and Se content is 0.8-1.5wt%.
Preferably, biological bacteria is bacillus subtilis and/or Pseudomonas fluorescens.
Preferably, trace mineral supplement is one or both of iron, copper, zinc, manganese, brill, manganese, iodine thing mixed above.
Preferably, the preparation process of modified rice residue protein includes：Rice residue protein and deionized water are pressed into solid-liquid ratio g：ml7- 8：1 is well mixed, and adjusts pH to 9, adds alkaline serine protein incision enzyme, is heated to 50-60 DEG C, is incubated 20-25min, uses 2.0mol/L sodium hydroxides are digested, and are warming up to 105 DEG C, are incubated 5-8min, and centrifuge washing obtains being modified rice residue protein；Wherein, alkali The weight ratio of sex pilus propylhomoserin protein incision enzyme and rice residue protein is 1.5-2.5：100.
A kind of paddy rice base proposed by the present invention applies the preparation method of microencapsulation selenium-rich fertilizer, it is characterised in that including as follows Step：
S1, peat air-dried, crushing obtains peat powder, and HNO is added in peat powder3And H2O2Mixed solution, 20-30 DEG C is heated to, washing to neutrality obtains peat material；
S2, biological bacteria is activated after be seeded in peat material, at 25-28 DEG C cultivate 1-2 days, centrifuge, filtering, crushing Obtain charcoal containing bacterium mud；
S3, the charcoal containing bacterium mud for obtaining S2 are well mixed with selenium fertilizer, sulfate, nitrogenous fertilizer, potash fertilizer, phosphate fertilizer, trace element, plus Enter emulsifying agent and deionized water, stirring obtains emulsion；
S4, addition lactose, maltodextrin in modified rice residue protein, stir, and add the emulsion that S3 is obtained, heating Stirring is to oil-water balance, and spray drying obtains paddy rice base and applies microencapsulation selenium-rich fertilizer.
Preferably, in S3, emulsifying agent is polyoxyethylene stearic acid ester, polyoxyethylene oleic acid ester, polyoxylethylene abietate One or both of thing mixed above.
Preferably, in S4, spray drying EAT is 90-100 DEG C, and leaving air temp is 50-60 DEG C, aspiration pressure of spraying 0.2-0.3MPa。
The present invention uses microcapsules technology, to be modified rice residue protein as wall material, and rice residue protein is in rice sugar industry Accessory substance, with low sensitization, and biodegradable, environmental protection and energy saving, secondary pollution will not be caused to soil, it is cost-effective, After modified, emulsion stability enhancing improves embedding rate, embedding rate is up to 93.5% to rice residue protein；Sulfuric acid is added in core Salt is used cooperatively with selenium fertilizer, and both rational proportions of control, sulfate promotes selenate and transported from root to overground part, it is to avoid Fixation to selenium, improves absorption and transhipment of the root to selenium fertilizer, increases operation rate；Peat is inoculated into after biological bacteria is activated In, the reduction of selenate is accelerated, absorption and conversion of the selenium element in plant is accelerated, and then further improves root pair The transhipment and absorption of selenium fertilizer；Nitrogenous fertilizer, potash fertilizer, phosphate fertilizer provide wide variety of conventional element for crop, promote plant growth, coordinate micro member Element promotes the development and growth of root system, and well developed root system is improved to nutrient absorption efficiency；Biological bacteria and rice residue protein phase in core Interaction, makes selenium element slowly enduringly discharge, the term of validity of nutrients release in extension fertilizer, so as to meet paddy rice each Individual growth period, to the demand of selenium element, further avoids selenium element from being enriched with rhizome, improves the Se content in seed, improves big The nutritive value of rice, with effect of increasing production.
Embodiment
Below, technical scheme is described in detail by specific embodiment.
Embodiment 1
A kind of paddy rice base applies microencapsulation selenium-rich fertilizer, including core and wall material, and the weight ratio of core and wall material is 70：30； Wherein, core raw material composition includes：Selenium fertilizer, sulfate, nitrogenous fertilizer, potash fertilizer, phosphate fertilizer, biological bacteria, peat, trace mineral supplement, Wall material is modified rice residue protein.
Embodiment 2
A kind of paddy rice base applies microencapsulation selenium-rich fertilizer, including core and wall material, and the weight ratio of core and wall material is 80：20； Wherein, core raw material composition includes：Selenium fertilizer, sulfate, nitrogenous fertilizer, potash fertilizer, phosphate fertilizer, biological bacteria, peat, trace mineral supplement, Wall material is modified rice residue protein；Selenium fertilizer is selenate and selenite；Sulfate be potassium sulfide and ammonium sulfate, selenium fertilizer and sulfate Mol ratio be 1.2：4.
Embodiment 3
A kind of paddy rice base applies microencapsulation selenium-rich fertilizer, including core and wall material, and the weight ratio of core and wall material is 72：25； Wherein, core raw material composition includes：Selenium fertilizer, sulfate, nitrogenous fertilizer, potash fertilizer, phosphate fertilizer, biological bacteria, peat, trace mineral supplement, Wall material is modified rice residue protein；Selenium fertilizer is selenate and selenite；Sulfate is magnesium sulfate, the mol ratio of selenium fertilizer and sulfate For 3.5：5；Paddy rice base is applied in microencapsulation selenium-rich fertilizer, and nitrogen content is 13wt%, K2O content is 15wt%, P2O5Content is 17wt%, Se content is 0.8wt%；Biological bacteria is bacillus subtilis and Pseudomonas fluorescens；Wrapped in trace mineral supplement Iron content, copper, zinc, manganese, brill, manganese, iodine.
Embodiment 4
A kind of paddy rice base applies microencapsulation selenium-rich fertilizer, including core and wall material, and the weight ratio of core and wall material is 72：25； Wherein, core raw material composition includes：Selenium fertilizer, sulfate, nitrogenous fertilizer, potash fertilizer, phosphate fertilizer, biological bacteria, peat, trace mineral supplement, Wall material is modified rice residue protein；Selenium fertilizer is selenate and selenite；Sulfate is magnesium sulfate, the mol ratio of selenium fertilizer and sulfate For 2：4.5；Paddy rice base is applied in microencapsulation selenium-rich fertilizer, and nitrogen content is 18wt%, K2O content is 12wt%, P2O5Content is 15wt%, Se content is 1.5wt%；Biological bacteria is bacillus subtilis；In trace mineral supplement comprising iron, copper, zinc, manganese, Brill, manganese, selenium, iodine；
The preparation process of modified rice residue protein includes：Rice residue protein and deionized water are pressed into solid-liquid ratio g：Ml=7：1 mixing Uniformly, pH to 9 is adjusted, alkaline serine protein incision enzyme is added, 60 DEG C are heated to, 25min is incubated, uses 2.0mol/L hydroxides Sodium is digested, and is warming up to 105 DEG C, is incubated 5min, and centrifuge washing obtains being modified rice residue protein；Wherein, alkaline serine protein endoenzyme The weight ratio of enzyme and rice residue protein is 1.5：100.
Paddy rice base is applied microencapsulation selenium-rich fertilizer and is made by following steps：
S1, peat air-dried, crushing obtains peat powder, and HNO is added in peat powder3And H2O2Mixed solution, 20 DEG C are heated to, washing to neutrality obtains peat material；
S2, biological bacteria is activated after be seeded in peat material, cultivate 1 day, centrifuge at 28 DEG C, filtering, crushing obtains Charcoal containing bacterium mud；
S3, the charcoal containing bacterium mud for obtaining S2 are well mixed with selenium fertilizer, sulfate, nitrogenous fertilizer, potash fertilizer, phosphate fertilizer, trace element, plus Enter emulsifying agent and deionized water, stirring obtains emulsion, wherein, emulsifying agent is polyoxyethylene stearic acid ester；
S4, addition lactose, maltodextrin in modified rice residue protein, stirring add the emulsion that S3 is obtained, heating stirring To oil-water balance, spray drying obtains paddy rice base and applies microencapsulation selenium-rich fertilizer.
Embodiment 5
A kind of paddy rice base applies microencapsulation selenium-rich fertilizer, including core and wall material, and the weight ratio of core and wall material is 72：25； Wherein, core raw material composition includes：Selenium fertilizer, sulfate, nitrogenous fertilizer, potash fertilizer, phosphate fertilizer, biological bacteria, peat, trace mineral supplement, Wall material is modified rice residue protein；Selenium fertilizer is selenate and selenite；Sulfate is magnesium sulfate, the mol ratio of selenium fertilizer and sulfate For 2：4.5；Paddy rice base is applied in microencapsulation selenium-rich fertilizer, and nitrogen content is 15wt%, K2O content is 14wt%, P2O5Content is 16wt%, Se content is 1.2wt%；Biological bacteria is bacillus subtilis；In trace mineral supplement comprising iron, copper, zinc, manganese, Brill, manganese, selenium, iodine；
The preparation process of modified rice residue protein includes：Rice residue protein and deionized water are pressed into solid-liquid ratio g：Ml=8：1 mixing Uniformly, pH to 9 is adjusted, alkaline serine protein incision enzyme is added, 50 DEG C are heated to, 20min is incubated, uses 2.0mol/L hydroxides Sodium is digested, and is warming up to 100 DEG C, is incubated 8min, and centrifuge washing obtains being modified rice residue protein；Wherein, alkaline serine protein endoenzyme The weight ratio of enzyme and rice residue protein is 2.5：100.
Paddy rice base is applied microencapsulation selenium-rich fertilizer and is made by following steps：
S1, peat air-dried, crushing obtains peat powder, and HNO is added in peat powder3And H2O2Mixed solution, 30 DEG C are heated to, washing to neutrality obtains peat material；
S2, biological bacteria is activated after be seeded in peat material, cultivate 2 days, centrifuge at 25 DEG C, filtering, crushing obtains Charcoal containing bacterium mud；
S3, the charcoal containing bacterium mud for obtaining S2 are well mixed with selenium fertilizer, sulfate, nitrogenous fertilizer, potash fertilizer, phosphate fertilizer, trace element, plus Enter emulsifying agent and deionized water, stirring obtains emulsion, wherein, emulsifying agent is polyoxyethylene oleic acid ester；
S4, addition lactose, maltodextrin in modified rice residue protein, stirring add the emulsion that S3 is obtained, heating stirring To oil-water balance, spray drying obtains paddy rice base and applies microencapsulation selenium-rich fertilizer, wherein, spray drying EAT is 90 DEG C, is gone out Air temperature is 50 DEG C, spraying aspiration pressure 0.3MPa.
Embodiment 6
A kind of paddy rice base applies microencapsulation selenium-rich fertilizer, including core and wall material, and the weight ratio of core and wall material is 72：25； Wherein, core raw material composition includes：Selenium fertilizer, sulfate, nitrogenous fertilizer, potash fertilizer, phosphate fertilizer, biological bacteria, peat, trace mineral supplement, Wall material is modified rice residue protein；Selenium fertilizer is selenate and selenite；Sulfate is magnesium sulfate, the mol ratio of selenium fertilizer and sulfate For 2：4.5；Paddy rice base is applied in microencapsulation selenium-rich fertilizer, and nitrogen content is 15wt%, K2O content is 14wt%, P2O5Content is 16wt%, Se content is 1.2wt%；Biological bacteria is bacillus subtilis；In trace mineral supplement comprising iron, copper, zinc, manganese, Brill, manganese, selenium, iodine；
The preparation process of modified rice residue protein includes：Rice residue protein and deionized water are pressed into solid-liquid ratio g：Ml=7.5：1 mixes Close uniform, adjust pH to 9, add alkaline serine protein incision enzyme, be heated to 55 DEG C, be incubated 23min, use 2.0mol/L hydrogen-oxygens Change sodium enzymolysis, be warming up to 100 DEG C, be incubated 7min, centrifuge washing obtains being modified rice residue protein；Wherein, in alkaline serine albumen The weight ratio of enzyme cutting and rice residue protein is 2：100.
Paddy rice base is applied microencapsulation selenium-rich fertilizer and is made by following steps：
S1, peat air-dried, crushing obtains peat powder, and HNO is added in peat powder3And H2O2Mixed solution, 25 DEG C are heated to, washing to neutrality obtains peat material；
S2, biological bacteria is activated after be seeded in peat material, cultivate 1 day, centrifuge at 26 DEG C, filtering, crushing obtains Charcoal containing bacterium mud；
S3, the charcoal containing bacterium mud for obtaining S2 are well mixed with selenium fertilizer, sulfate, nitrogenous fertilizer, potash fertilizer, phosphate fertilizer, trace element, plus Enter emulsifying agent and deionized water, stirring obtains emulsion, wherein, emulsifying agent is polyoxylethylene abietate；
S4, addition lactose, maltodextrin in modified rice residue protein, stirring add the emulsion that S3 is obtained, heating stirring To oil-water balance, spray drying obtains paddy rice base and applies microencapsulation selenium-rich fertilizer, wherein, spray drying EAT is 100 DEG C, is gone out Air temperature is 60 DEG C, spraying aspiration pressure 0.2MPa.
Reference examples
The weight ratio of a kind of selenium-rich fertilizer, including core and wall material, core and wall material is 72：25；Wherein, core raw material is constituted Including：Selenium fertilizer, nitrogenous fertilizer, potash fertilizer, phosphate fertilizer, peat, trace mineral supplement, wall material are modified rice residue protein；Selenium fertilizer is selenate And selenite；Paddy rice base is applied in microencapsulation selenium-rich fertilizer, and nitrogen content is 15wt%, K2O content is 14wt%, P2O5Content is 16wt%, Se content is 1.2wt%；Biological bacteria is bacillus subtilis；In trace mineral supplement comprising iron, copper, zinc, manganese, Brill, manganese, selenium, iodine；
The preparation process of modified rice residue protein includes：Rice residue protein and deionized water are pressed into solid-liquid ratio g：Ml=7.5：1 mixes Close uniform, adjust pH to 9, add alkaline serine protein incision enzyme, be heated to 55 DEG C, be incubated 23min, use 2.0mol/L hydrogen-oxygens Change sodium enzymolysis, be warming up to 100 DEG C, be incubated 7min, centrifuge washing obtains being modified rice residue protein；Wherein, in alkaline serine albumen The weight ratio of enzyme cutting and rice residue protein is 2：100.
Selenium-rich fertilizer is made by following steps：
S1, peat air-dried, crushing obtains peat powder, and HNO is added in peat powder3And H2O2Mixed solution, 25 DEG C are heated to, washing to neutrality obtains peat material；
S2, the peat material for obtaining S1 are well mixed with selenium fertilizer, nitrogenous fertilizer, potash fertilizer, phosphate fertilizer, trace element, add emulsification Agent and deionized water, stirring obtain emulsion, wherein, emulsifying agent is polyoxylethylene abietate；
S3, addition lactose, maltodextrin in modified rice residue protein, stirring add the emulsion that S2 is obtained, heating stirring To oil-water balance, spray drying obtains paddy rice base and applies microencapsulation selenium-rich fertilizer, wherein, spray drying EAT is 100 DEG C, is gone out Air temperature is 60 DEG C, spraying aspiration pressure 0.2MPa.
Paddy rice base is made in embodiment 4-6 and applies microencapsulation selenium-rich fertilizer and selenium-rich fertilizer progress rice field made from reference examples Experiment, result of the test is as shown in the table：
From test result as can be seen that the present invention uses cooperatively phosphate with selenium fertilizer, rice root is improved to selenium member The absorption efficiency of element, the assimilation effect of especially selenate is greatly improved, so as to avoid the fixation to selenium, improves fertilizer efficiency, together When to increasing production of rice also have certain facilitation.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto, Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.

Claims (10)

1. a kind of paddy rice base applies microencapsulation selenium-rich fertilizer, it is characterised in that including core and wall material, the weight ratio of core and wall material For 70-80：20-30；Wherein, core raw material composition includes：It is selenium fertilizer, sulfate, nitrogenous fertilizer, potash fertilizer, phosphate fertilizer, biological bacteria, peat, micro- Secondary element additive, wall material is modified rice residue protein.
2. paddy rice base according to claim 1 applies microencapsulation selenium-rich fertilizer, it is characterised in that selenium fertilizer is selenate and sub- selenium Hydrochlorate；Preferably, selenate and selenite weight ratio are 1：9-11.
3. paddy rice base according to claim 1 applies microencapsulation selenium-rich fertilizer, it is characterised in that sulfate is potassium sulfide, sulphur One or both of sour ammonium, magnesium sulfate, sodium sulphate thing mixed above；Preferably, the mol ratio of selenium fertilizer and sulfate is 1.2- 3.5：4-5.
4. the paddy rice base according to claim any one of 1-3 applies microencapsulation selenium-rich fertilizer, it is characterised in that paddy rice base applies micro- In encapsulated selenium-rich fertilizer, nitrogen content is 13-18wt%, K2O content is 12-15wt%, P2O5Content is 15-17wt%, Se content For 0.8-1.5wt%.
5. the paddy rice base according to claim any one of 1-4 applies microencapsulation selenium-rich fertilizer, it is characterised in that biological bacteria is withered Careless bacillus and/or Pseudomonas fluorescens.
6. the paddy rice base according to claim any one of 1-5 applies microencapsulation selenium-rich fertilizer, it is characterised in that trace element adds Plus one or both of iron, copper, zinc, manganese, brill, manganese, iodine thing mixed above is included in agent.
7. the paddy rice base according to claim any one of 1-6 applies microencapsulation selenium-rich fertilizer, it is characterised in that modified rice residue egg White preparation process includes：Rice residue protein and deionized water are pressed into solid-liquid ratio g：Ml=7-8：1 is well mixed, and pH is to 9 for regulation, plus Enter alkaline serine protein incision enzyme, be heated to 50-60 DEG C, be incubated 20-25min, digested with 2.0mol/L sodium hydroxides, heating To 100-105 DEG C, 5-8min is incubated, centrifuge washing obtains being modified rice residue protein；Wherein, alkaline serine protein incision enzyme and rice The weight ratio of residue protein is 1.5-2.5：100.
8. a kind of paddy rice base according to claim any one of 1-7 applies the preparation method of microencapsulation selenium-rich fertilizer, its feature It is, comprises the following steps：
S1, peat air-dried, crushing obtains peat powder, and HNO is added in peat powder3And H2O2Mixed solution, heating To 20-30 DEG C, washing to neutrality obtains peat material；
S2, biological bacteria is activated after be seeded in peat material, cultivated 1-2 days at 25-28 DEG C, centrifugation is filtered, crushing obtains Charcoal containing bacterium mud；
S3, the charcoal containing bacterium mud for obtaining S2 are well mixed with selenium fertilizer, sulfate, nitrogenous fertilizer, potash fertilizer, phosphate fertilizer, trace element, add breast Agent and deionized water, stirring obtain emulsion；
S4, addition lactose, maltodextrin in modified rice residue protein, stir, and add the emulsion that S3 is obtained, heating stirring To oil-water balance, spray drying obtains paddy rice base and applies microencapsulation selenium-rich fertilizer.
9. paddy rice base according to claim 8 applies the preparation method of microencapsulation selenium-rich fertilizer, it is characterised in that in S3, breast Agent is that one or both of polyoxyethylene stearic acid ester, polyoxyethylene oleic acid ester, polyoxylethylene abietate are mixed above Thing.
10. paddy rice base according to claim 8 applies the preparation method of microencapsulation selenium-rich fertilizer, it is characterised in that in S4, spray It is 90-100 DEG C that mist, which dries EAT, and leaving air temp is 50-60 DEG C, spraying aspiration pressure 0.2-0.3MPa.
CN201710221301.0A 2017-04-06 2017-04-06 A kind of paddy rice base applies microencapsulation selenium-rich fertilizer and preparation method thereof Withdrawn CN106966796A (en)

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN108485300A (en) * 2018-04-08 2018-09-04 湖南双建无纺布有限公司 A kind of raising rice seedlings film and preparation method thereof
CN110734336A (en) * 2019-11-28 2020-01-31 哈尔滨坤丰生物工程有限公司 microelement empty capsule used by plants and application method thereof
CN114080959A (en) * 2021-10-21 2022-02-25 舒城县农业科学研究所 Organic selenium-rich rice cultivation method

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CN102515944A (en) * 2011-12-07 2012-06-27 苏州硒谷科技有限公司 Solid coated slow release selenium fertilizer and its preparation method
CN104004812A (en) * 2014-06-16 2014-08-27 中南林业科技大学 Glycosylation modification method of rice residue protein
CN105384520A (en) * 2015-11-17 2016-03-09 湖南科技学院 Micro-nano selenium-enriched controlled-release microbial fertilizer and preparation method thereof

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Publication number Priority date Publication date Assignee Title
CN102515944A (en) * 2011-12-07 2012-06-27 苏州硒谷科技有限公司 Solid coated slow release selenium fertilizer and its preparation method
CN104004812A (en) * 2014-06-16 2014-08-27 中南林业科技大学 Glycosylation modification method of rice residue protein
CN105384520A (en) * 2015-11-17 2016-03-09 湖南科技学院 Micro-nano selenium-enriched controlled-release microbial fertilizer and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108485300A (en) * 2018-04-08 2018-09-04 湖南双建无纺布有限公司 A kind of raising rice seedlings film and preparation method thereof
CN110734336A (en) * 2019-11-28 2020-01-31 哈尔滨坤丰生物工程有限公司 microelement empty capsule used by plants and application method thereof
CN114080959A (en) * 2021-10-21 2022-02-25 舒城县农业科学研究所 Organic selenium-rich rice cultivation method

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Application publication date: 20170721