CN102795908A - Biological selenium-rich fertilizer and whole course dynamic gradient method for selenium-rich purple wheat - Google Patents

Biological selenium-rich fertilizer and whole course dynamic gradient method for selenium-rich purple wheat Download PDF

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CN102795908A
CN102795908A CN2012102857299A CN201210285729A CN102795908A CN 102795908 A CN102795908 A CN 102795908A CN 2012102857299 A CN2012102857299 A CN 2012102857299A CN 201210285729 A CN201210285729 A CN 201210285729A CN 102795908 A CN102795908 A CN 102795908A
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selenium
wheat
fertilizer
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purple
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CN102795908B (en
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蒋彦婕
蔡士宾
吴纪中
张巧凤
方先文
颜伟
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Jiangsu Academy of Agricultural Sciences
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Abstract

The invention relates to a method for producing a selenium-rich purple wheat by using a biological selenium-rich fertilizer and a whole course dynamic gradient selenium-rich method, which belongs to the crops cultivation technical field. The method is characterized in that the biological selenium-rich fertilizer is produced, and is used to prepare a selenium-rich fertilizer mother liquor, and then the selenium-rich fertilizer mother liquor is diluted to a selenium-containing fertilizer liquid with different selenium concentrations, and is affected on soil, purple wheat seeds and whole purple wheat at different growth periods. The wheat seeds enable full enrichment on the selenium element, according to the growth characteristics of the purple wheat, the selenium-containing fertilizer liquid with different gradients is used for fitting with the purple wheat growth rules during the whole growth process of the purple wheat, thereby the exogenous inorganic selenium can be conversed to plant endogenous organic selenium with high efficiency. By detecting, the selenium content of the purple wheat product provided in the invention is 0.18-0.28mg/kg, wherein the organic selenium content is 0.16-0.25mg/kg, compared with the purple wheat product which is sprayed by a single selenium-containing fertilizer liquid c in the whole process, the selenium content multiple can reach 5-7 times.

Description

A kind of biological selenium-enriched fertilizer and the purple Wheat Production method of the rich selenium of omnidistance dynamically gradient thereof
(1) technical field
The present invention relates to a kind of selenium-enriched crop cultivating method, particularly a kind of biological selenium-enriched fertilizer and the purple Wheat Production method of the rich selenium of omnidistance dynamically gradient thereof.Belong to the crop cultivating technology field.
(2) background technology
Purple wheat is meant that it is the wheat of purple that seed is really planted the color of skin or aleurone layer, and is main with cyanidin(e), is the peculiar kind of wheat, in the seed of common white wheat, does not then have the existence of cyanidin(e).Cyanidin(e) is one type of water colo(u)r that extensively is present in the plant, belongs to flavonoids.As a kind of natural food colour, have anti-oxidant, protection blood vessel, xitix, plurality of health care functions such as preventing cancer can directly be used for industries such as food, medicine, beauty treatment.Therefore, cyanidin(e) is as purple wheat important biological material, and purple wheat has become one of focus of current functional foodstuff development research.In addition, the advantage that purple wheat is maximum is that mineral nutrient element content is abundant.Detect according to Ministry of Agriculture's cereal and quality of item supervision and inspection center, the mountain purple wheat of farming contains multiple mineral elements such as selenium to the human body beneficial, calcium, zinc, copper, phosphorus, iron, magnesium for No. 1, and content all is higher than common white wheat to some extent.
Selenium is one of human requisite trace element, the immunologic function that its can enhances human body, and have anti-cancer, anticancer effect, also can play excellent prevention and treatment measure to mellitus, cardiovascular and cerebrovascular diseases.At present, the most areas of China are in scarce selenium, low selenium area, and the content of selenium is also all lower in the natural food, and the wretched insufficiency of organoselenium intake has influenced the healthy of people in the daily meals of people.Recommending every day organoselenium element intake according to Chinese Soclety of Nutrition is 50 ~ 200 μ g, and according to the influence investigation of China, and the selenium intake of China grownup every day only has 26 ~ 32 μ g at present, well below the minimum standard of national regulation.Therefore, population of China selenium absorption malnutrition has been a general problem.Therefore, strengthen the exploitation of rich selenium foodstuff products and the exploitation of plant technique of enriched selenium, have important economy and society and be worth.
Wheat is the second largest farm crop of second largest crop China that China is only second to paddy rice, also is northern China people's main grain ration.In present cereal farm crop, wheat is the strongest to the accumulation ability of selenium element.Yet the selenium-rich method of wheat growth mainly is through preparing certain density sodium selenite solution, to soil application in the wheat growth and wheat foliage-spray at present; This method is not only because soil fixing and weather reason; Cause the selenium element to run off in a large number, and the transformation efficiency of organoselenium is low, security and economy are all poor; So can not become the measure that selenium is mended in agricultural-food production as a kind of suitable safe method.Therefore, inorganic selenium is processed the natural endogenous selenium-enriched fertilizer that is fit to plant absorbing earlier through biofermentation technique technology, thereby effectively absorbed, and do not have the inorganic selenium residue problem by plant, thus the safe and efficient production of realization Se-rich farm products.
At present, the report of the rich selenium of relevant purple wheat do not see, but about the research of the rich selenium of wheat such as following:
200610072921.4 disclose a kind of rich chromium, high-quality triticale distinguished germ plasm cultural method; The advantage of this method is to combine methods such as conventional breeding, haploid breeding, slow radiation, the rescue of distant hybirdization rataria; Irradiance method is improved; Cultivate high yield, wide accommodation, be rich in organic chromium, be fit to triticale new germ plasm patients with diabetes mellitus, that character inheritance is stable, but this method can not improve organic selenium content in the triticale.In addition, this method does not more relate to the rich selenium of purple wheat.
201010573545.3 in a grow wheat selenizing production technology is disclosed, it is fertilizer that its advantage is to mix with urea, boron fertilizer and three kinds of materials of sodium selenite, adopts the foliage-spray method, can produce tens thousand of tons of organoselenium wheats.But this method still adopts the mode to the wheat foliage-spray, exists the organoselenium transformation efficiency low, the final residual safety issue of wheat products inorganic selenium.In addition, this method does not relate to the rich selenium of purple wheat.
201110179740.2 in the cultivation technique of Se-rich wheat is disclosed, its advantage is to efficiently solve the low problem of content of the wheat selenium that traditional wheat cultivation technology produces, and can make the content of the organoselenium in the wheat improve 5 ~ 10 times.But this method adopts sodium selenite solution that wheat seed is soaked, and to the mode of wheat foliage-spray, there is the residual safety issue of inorganic selenium in final wheat products.In addition, this method does not relate to the rich selenium of purple wheat.
200810013002.9 in a kind of method of cultivation of Se-rich wheat is disclosed; It is biological selenium-enriched fermentation fertilizer and the mother liquor that main raw material makes that its advantage is to adopt with the beet pulp earlier; Then through to the mode of soil application and foliage-spray, convert the metabolism of inorganic selenium through wheat self into can be absorbed by the body organoselenium.But it only adopts single concentration selenium solution that wheat is carried out rich selenium, does not investigate wheat and adopts the influence of the sodium selenite solution of different concns to its enrichment selenium effect at different growth phases.In addition, this method does not relate to the rich selenium of purple wheat;
201110063980.6 disclose the omnidistance selenium-rich method of the dynamic gradient of a kind of stem and leaf of Wheat; The advantage of this method is to adopt water culture to prepare stem and leaf of Wheat; Wheat seed and stem and leaf of Wheat production different steps adopted contain the sodium selenite solution of not allowing concentration and carry out liquid culture, improved the middle organic selenium content of stem and leaf of Wheat.But this method still adopts sodium selenite solution to directly act on stem and leaf of Wheat, has the residual safety issue of the finished product inorganic selenium, and this method is the production of the rich selenium of stem and leaf of Wheat, does not relate to the rich selenium of wheat, does not more relate to the rich selenium of purple wheat.
Although above-mentioned patent documentation discloses the enrichment production technology of the relevant trace element of wheat, all do not relate to purple wheat technique of enriched selenium.And not have a kind of technology be to utilize to utilize Se-enriched bio fertilizer and omnidistance dynamically gradient enriching method to produce purple wheat simultaneously.
Selenium is the essential trace element of a kind of human life, and selenium is participated in cellular metabolism, and the integrity of protection cytolemma, and selenium is the central element of Selenoperoxidase.This enzyme function is obstructed when lacking selenium, and vigor descends, and causes body immunity to reduce, and brings out multiple disease and takes place.And organoselenium has stronger preventive and therapeutic effect to the cardiovascular disorder of human body, tumour, thyroid disease, cataract, mellitus, hepatic fibrosis etc.; Antagonism HIV infection, detoxifcation, raising Fertility, adjusting mood, delay senility etc. has certain active effect; And organoselenium toxicity is little; Specific absorption is high, and bioavailability is high, in satisfying the addition scope that human body grows required, environment not have pollution basically.
At present, because the output of general common wheat is higher than purple wheat, it is research object with the common wheat all that domestic disclosed great majority relate to micro-enrichment patent documentation, does not see that the patent documentation of purple wheat technique of enriched selenium is open.Compare with common wheat, containing a large amount of in the purple Testa Tritici is main natural pigment with cyanidin(e).That cyanidin(e) has is anti-oxidant, protection blood vessel, xitix, and functions such as preventing cancer can directly be used for industries such as food, medicine, beauty treatment.
The functional ingredient cyanidin(e) that is rich in purple wheat is the basis; Through adopting the Se-enriched bio fertilizer of natural and safe; According to characteristics in the purple wheat growth,, choose the process of growth that Se-enriched bio fertilizer liquid that difference contains plasma selenium concentration acts on whole purple wheat through purple wheat self growth metabolism effect; Inorganic selenium is converted into organoselenium fully, produces a kind of purple wheat of rich selenium that is rich in anthocyanogen and two kinds of functional ingredient of organoselenium simultaneously.
(3) summary of the invention
Technical problem
The purpose of this invention is to provide a kind of rich selenium method of the omnidistance dynamically gradient of biological selenium-enriched fertilizer of utilizing and produce the purple method of wheat of rich selenium; Specifically earlier through producing a kind of biological selenium-enriched fertilizer; Then with its selenium-enriched fertilizer mother liquor that makes, what then be diluted to different concentration Se contains selenium fertilizer liquid, acts on soil; Purple wheat seed, and whole purple wheat different growing stage.Adopt the omnidistance selenium-rich method of this dynamic gradient; Contain selenium concentration fertilizer liquid through control; Make whole rich selenium process adapt to the growth rhythm of purple wheat self; Final organic selenium content and the organoselenium transformation efficiency that improves in the purple wheat can prevent because the residual safety issue of bringing of inorganic selenium is produced and is rich in cyanidin(e) and the high new variety of wheat of organoselenium output simultaneously simultaneously.
Technical scheme
A kind of omnidistance rich selenium method of the dynamic gradient of bio-feritlizer of utilizing that the present invention relates to is produced purple method of wheat through following technical proposals and step realization:
1. the making of Se-enriched bio fertilizer: (kilogram) by weight, 30 ~ 50 kilograms of pig manures (water cut 12%), 20 ~ 40 kilograms of chicken manures (water cut 12%); 10 ~ 30 kilograms of rapeseed cakes, 10 ~ 30 kilograms of dregs of beans cakes, 5 ~ 10 kilograms of sodium selenites; 2 ~ 4 kilograms in urea, 1 ~ 3 kilogram in saltpetre is put into the fermentation vat that cement is made; Add 200 ~ 400 kilograms of entry, sealed anaerobically fermenting 30 days.After treating fermentation ends, fermented liquid in the fermentation vat is all taken out in the filtration of 200 orders, obtain containing selenium fermentation fertilizer mother liquor a and contain selenium fermentation fertilizer residue b;
2. the preparation of different selenium concentration fermentation fertilizer liquid: different selenium concentration fermentation fertilizer liquid make by containing selenium fermentation mother liquor a thin up.Contain that the selenium constituent content is 5 ~ 10g/L among the selenium fertilizer liquid c; Containing selenium fertilizer liquid d selenium constituent content is 10 ~ 20 g/L; Containing selenium fertilizer liquid e selenium constituent content is 20 ~ 30g/L; Containing selenium fertilizer liquid f selenium constituent content is 30 ~ 40g/L; Containing selenium fertilizer liquid g selenium constituent content is 40 ~ 45g/L;
3. the rich selenium of seed: select the purple little wheat seeds that particle is big and full, embryo is complete, put into container, add and contain selenium fertilizer liquid c, fertilizer liquid add-on was not advisable just to have purple wheat seed, put into plant incubator, and 25 ± 2 ℃ of control culture temperature are soaked 24h;
4. the rich selenium of soil: before purple wheat planting, in the planting site at place, execute 10 ~ 20 kilograms of fermentation residue b in every mu of planting site;
5. the omnidistance dynamic rich selenium of purple wheat:, plant in the process planting site of step 4 taking out through the purple wheat seed of step 3.Contain selenium fertilizer liquid d at the wheat during jointing stage foliage-spray respectively, contain selenium fertilizer liquid e, spray at flowering stage of wheat and contain selenium fertilizer liquid f, spray mid-term at wheat grain filling and contain selenium fertilizer liquid g at the wheat booting period foliage-spray; Treat that wheat is ripe, the harvesting back is the purple wheat products that is rich in selenium.
In the step 4, rich selenium fermentation fertilizer residue b need execute and be embedded in 20 ~ 30 centimetres in topsoil, and the shop thin soil covers above.
In the step 5, spraying of purple wheat contained time of selenium fertilizer should be in the morning, carry out at dusk or under the more weak situation of illumination, sprays back 24 hours like the rainy day, and need fill spray to execute contains selenium fertilizer once.To in time pull out big grass and roguing in addition, promote wheat growth.
Beneficial effect
The present invention has following advantage compared with prior art:
1. the present invention adopts Se-enriched bio fermentation fertilizer liquid that purple wheat is carried out the selenium enrichment of element, has solved in the past in the Se-rich wheat process, and inorganic selenium is to the toxic action of wheat, and the residual safety issue of bringing of inorganic selenium in the wheat finished product.
2, the present invention adopts the mode of the rich selenium of omnidistance dynamically gradient that the selenium element in the purple wheat is carried out whole process control; The rich selenium fermentation fertilizer liquid because the employing natural biology ferments begins from wheat seed, just lets it fully the selenium element carried out enrichment; And at whole purple wheat growth; According to its growth characteristic, adopt different gradients to contain selenium fertilizer liquid to adapt to purple wheat growth rule, efficiently exogenous inorganic selenium is converted into plant endogenous property organoselenium.Through detecting, the purple wheat products selenium content of producing through present method is 0.18 ~ 0.28mg/kg, and wherein organic selenium content is 0.16 ~ 0.25mg/kg, sprays the single selenium fertilizer liquid c that contains with whole process, and resulting purple wheat products is compared, and its selenium content multiple reaches 5 ~ 7 times.
2. the present invention adopts water culture to prepare stem and leaf of Wheat, and growing-seedling period is short, and has practiced thrift land resources, has both guaranteed that the stem and leaf of Wheat quality product was relatively uniform simultaneously, helps the popularization of stem and leaf of Wheat technique of enriched selenium and the suitability for industrialized production of Se-rich wheat seedling again.
(4) embodiment
Embodiment 1:
1. the making of Se-enriched bio fertilizer
(kilogram) by weight, 30 kilograms of pig manures (water cut 12%), 20 kilograms of chicken manures (water cut 12%); 10 kilograms of rapeseed cakes, 10 kilograms of dregs of beans cakes, 5 kilograms of sodium selenites; 2 kilograms in urea, 1 kilogram in saltpetre is put into the fermentation vat that cement is made; Add 500 kilograms of entry, sealed anaerobically fermenting 30 days.After treating fermentation ends, fermented liquid in the fermentation vat is all taken out in the filtration of 200 orders, obtain containing selenium fermentation fertilizer mother liquor a and contain selenium fermentation fertilizer residue b;
2. the different selenium concentration fermentation fertilizer of the preparation of different selenium concentration fermentation fertilizer liquid liquid makes by containing selenium fermentation mother liquor a thin up.Contain that the selenium constituent content is 5g/L among the selenium fertilizer liquid c; Containing selenium fertilizer liquid d selenium constituent content is 10g/L; Containing selenium fertilizer liquid e selenium constituent content is 20g/L; Containing selenium fertilizer liquid f selenium constituent content is 30g/L; Containing selenium fertilizer liquid g selenium constituent content is 40g/L;
3. the rich selenium of seed is selected the purple little wheat seeds that particle is big and full, embryo is complete, puts into container, adds and contains selenium fertilizer liquid c, and fertilizer liquid add-on was not advisable just to have purple wheat seed, put into plant incubator, and 25 ± 2 ℃ of control culture temperature are soaked 24h;
4. the rich selenium of soil in the planting site at place, is executed 10 kilograms of fermentation residue b in every mu of planting site before purple wheat planting;
5. the omnidistance dynamic rich selenium of purple wheat is planted in the process planting site of step 4 taking out through the purple wheat seed of step 3.Contain selenium fertilizer liquid d at the wheat during jointing stage foliage-spray respectively, contain selenium fertilizer liquid e, spray at flowering stage of wheat and contain selenium fertilizer liquid f, spray mid-term at wheat grain filling and contain selenium fertilizer liquid g at the wheat booting period foliage-spray; Treat that wheat is ripe, the harvesting back is the purple wheat products that is rich in selenium.
Total selenium content is 0.18 ± 0.10mg/kg in this purple wheat products, and wherein to contain be 0.16 ± 0.08mg/kg to organoselenium.Meet the national standard that the cereal preparation selenium content adds, promptly≤0.30 mg/kg.
Embodiment 2:
1. the making of Se-enriched bio fertilizer
(kilogram) by weight, 40 kilograms of pig manures (water cut 12%), 30 kilograms of chicken manures (water cut 12%); 20 kilograms of rapeseed cakes, 20 kilograms of dregs of beans cakes, 8 kilograms of sodium selenites; 3 kilograms in urea, 2 kilograms in saltpetre is put into the fermentation vat that cement is made; Add 500 kilograms of entry, sealed anaerobically fermenting 30 days.After treating fermentation ends, fermented liquid in the fermentation vat is all taken out in the filtration of 200 orders, obtain containing selenium fermentation fertilizer mother liquor a and contain selenium fermentation fertilizer residue b;
2. the different selenium concentration fermentation fertilizer of the preparation of different selenium concentration fermentation fertilizer liquid liquid makes by containing selenium fermentation mother liquor a thin up.Contain that the selenium constituent content is 8g/L among the selenium fertilizer liquid c; Containing selenium fertilizer liquid d selenium constituent content is 15 g/L; Containing selenium fertilizer liquid e selenium constituent content is 25g/L; Containing selenium fertilizer liquid f selenium constituent content is 35g/L; Containing selenium fertilizer liquid g selenium constituent content is 42g/L;
3. the rich selenium of seed is selected the purple little wheat seeds that particle is big and full, embryo is complete, puts into container, adds and contains selenium fertilizer liquid c, and fertilizer liquid add-on was not advisable just to have purple wheat seed, put into plant incubator, and 25 ± 2 ℃ of control culture temperature are soaked 24h;
4. the rich selenium of soil in the planting site at place, is executed 15 kilograms of fermentation residue b in every mu of planting site before purple wheat planting;
5. the omnidistance dynamic rich selenium of purple wheat is planted in the process planting site of step 4 taking out through the purple wheat seed of step 3.Contain selenium fertilizer liquid d at the wheat during jointing stage foliage-spray respectively, contain selenium fertilizer liquid e, spray at flowering stage of wheat and contain selenium fertilizer liquid f, spray mid-term at wheat grain filling and contain selenium fertilizer liquid g at the wheat booting period foliage-spray; Treat that wheat is ripe, the harvesting back is the purple wheat products that is rich in selenium.
Total selenium content is 0.22 ± 0.03mg/kg in this purple wheat products, and wherein to contain be 0.20 ± 0.01mg/kg to organoselenium.Meet the national standard that the cereal preparation selenium content adds, promptly≤0.30 mg/kg.
Embodiment 3:
(kilogram) by weight, 50 kilograms of pig manures (water cut 12%), 40 kilograms of chicken manures (water cut 12%); 30 kilograms of rapeseed cakes, 30 kilograms of dregs of beans cakes, 10 kilograms of sodium selenites; 4 kilograms in urea, 3 kilograms in saltpetre is put into the fermentation vat that cement is made; Add 500 kilograms of entry, sealed anaerobically fermenting 30 days.After treating fermentation ends, fermented liquid in the fermentation vat is all taken out in the filtration of 200 orders, obtain containing selenium fermentation fertilizer mother liquor a and contain selenium fermentation fertilizer residue b;
2. the different selenium concentration fermentation fertilizer of the preparation of different selenium concentration fermentation fertilizer liquid liquid makes by containing selenium fermentation mother liquor a thin up.Contain that the selenium constituent content is 10g/L among the selenium fertilizer liquid c; Containing selenium fertilizer liquid d selenium constituent content is 20 g/L; Containing selenium fertilizer liquid e selenium constituent content is 30g/L; Containing selenium fertilizer liquid f selenium constituent content is 40g/L; Containing selenium fertilizer liquid g selenium constituent content is 45g/L;
3. the rich selenium of seed is selected the purple little wheat seeds that particle is big and full, embryo is complete, puts into container, adds and contains selenium fertilizer liquid c, and fertilizer liquid add-on was not advisable just to have purple wheat seed, put into plant incubator, and 25 ± 2 ℃ of control culture temperature are soaked 24h;
4. the rich selenium of soil in the planting site at place, is executed 20 kilograms of fermentation residue b in every mu of planting site before purple wheat planting;
5. the omnidistance dynamic rich selenium of purple wheat is planted in the process planting site of step 4 taking out through the purple wheat seed of step 3.Contain selenium fertilizer liquid d at the wheat during jointing stage foliage-spray respectively, contain selenium fertilizer liquid e, spray at flowering stage of wheat and contain selenium fertilizer liquid f, spray mid-term at wheat grain filling and contain selenium fertilizer liquid g at the wheat booting period foliage-spray; Treat that wheat is ripe, the harvesting back is the purple wheat products that is rich in selenium.
Total selenium content is 0.28 ± 0.05mg/kg in this purple wheat products, and wherein to contain be 0.25 ± 0.11mg/kg to organoselenium.Meet the national standard that the cereal preparation selenium content adds, promptly≤0.30 mg/kg.

Claims (4)

1. biological selenium-enriched fertilizer, its working method is:
(1) making of Se-enriched bio fertilizer: 30 ~ 50 kilograms of pig manures, 20 ~ 40 kilograms of chicken manures, 10 ~ 30 kilograms of rapeseed cakes; 10 ~ 30 kilograms of dregs of beans cakes, 5 ~ 10 kilograms of sodium selenites, 2 ~ 4 kilograms in urea; 1 ~ 3 kilogram in saltpetre; Put into the fermentation vat that cement is made, add 200 ~ 400 kilograms of entry, sealed anaerobically fermenting 30 days; After treating fermentation ends, fermented liquid in the fermentation vat is all taken out in the filtration of 200 orders, obtain containing selenium fermentation fertilizer mother liquor a and contain selenium fermentation fertilizer residue b;
(2) preparation of different selenium concentration fermentation fertilizer liquid: different selenium concentration fermentation fertilizer liquid make by containing selenium fermentation mother liquor a thin up, contain that the selenium constituent content is 5 ~ 10g/L among the selenium fertilizer liquid c; Containing selenium fertilizer liquid d selenium constituent content is 10 ~ 20 g/L; Containing selenium fertilizer liquid e selenium constituent content is 20 ~ 30g/L; Containing selenium fertilizer liquid f selenium constituent content is 30 ~ 40g/L; Containing selenium fertilizer liquid g selenium constituent content is 40 ~ 45g/L.
2. the purple Wheat Production method of the said biological selenium-enriched fertilizer of the claim 1 rich selenium of omnidistance dynamically gradient is characterized in that:
(1) the rich selenium of seed: select purple wheat seed, put into container, add the said selenium fertilizer liquid c that contains of claim 1, fertilizer liquid add-on was not advisable just to have purple wheat seed, put into plant incubator, and 25 ± 2 ℃ of control culture temperature are soaked 24h;
(2) the rich selenium of soil: before purple wheat planting, in the planting site at place, execute 10 ~ 20 kilograms of the said fermentation residue b of claim 1 in every mu of planting site;
(3) the omnidistance dynamic rich selenium of purple wheat: take out the purple wheat seed that soaks through step (1); Plant in the planting site of handling through step (2); Respectively at the said selenium fertilizer liquid d that contains of wheat during jointing stage foliage-spray claim 1; At the said selenium fertilizer liquid e that contains of wheat booting period foliage-spray claim 1, spray the said selenium fertilizer liquid f that contains of claim 1 at flowering stage of wheat, spray the said selenium fertilizer liquid g that contains of claim 1 mid-term at wheat grain filling; Treat that wheat is ripe, the harvesting back is the purple wheat products that is rich in selenium.
3. method according to claim 2 is characterized in that: in the said step of claim 2 (2), rich selenium fermentation fertilizer residue b executes and is embedded in 20 ~ 30 centimetres in topsoil, and the shop thin soil covers above.
4. according to claim 2 or 3 described methods; In the said step of claim 2 (3); Spraying of purple wheat contained time of selenium fertilizer should be in the morning, carry out at dusk or under the more weak situation of illumination, sprays back 24 hours like the rainy day, and need fill spray to execute contains selenium fertilizer once.
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CN104489829A (en) * 2014-11-20 2015-04-08 安徽玉龙新材料科技有限公司 Selenium-rich black wheatgrass juice beverage production method
CN105961320A (en) * 2016-05-11 2016-09-28 怀远县阳光生态农业有限公司 Selenium rich pork production method
CN106431577A (en) * 2016-10-14 2017-02-22 中国科学院沈阳应用生态研究所 Selenium-rich double-effect water-soluble fertilizer and preparation method thereof
CN106509639A (en) * 2016-11-18 2017-03-22 扬州名佳食品有限公司 Selenium-enriched wheat planting method, and selenium-enriched wheat flour preparation method
CN107594070A (en) * 2017-09-08 2018-01-19 四川亿客农食品有限公司 A kind of breeding method of Se-rich farm products and its application
CN107736101A (en) * 2017-11-18 2018-02-27 吕强 A kind of method of selenium-rich balsam pear grafting plantation
CN109479615A (en) * 2018-12-13 2019-03-19 成都优尚农业科技开发有限公司 The method for producing rich agaricus bisporus containing selenium
CN109479614A (en) * 2018-12-13 2019-03-19 成都优尚农业科技开发有限公司 Rich agaricus bisporus containing selenium

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