CN102786335A - Selenium-enriched breeding substrate and method for producing selenium-enriched agricultural products by selenium-enriched breeding substrate - Google Patents
Selenium-enriched breeding substrate and method for producing selenium-enriched agricultural products by selenium-enriched breeding substrate Download PDFInfo
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- CN102786335A CN102786335A CN2012102882801A CN201210288280A CN102786335A CN 102786335 A CN102786335 A CN 102786335A CN 2012102882801 A CN2012102882801 A CN 2012102882801A CN 201210288280 A CN201210288280 A CN 201210288280A CN 102786335 A CN102786335 A CN 102786335A
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Abstract
The invention provides a selenium-enriched breeding substrate and a method for producing selenium-enriched agricultural products by the selenium-enriched breeding substrate. The proportion of selenium to sulfur of the breeding substrate is 1:2-10, the substrate utilizes the selenium and sulfur competition absorption relationship, in the early period of the seedling growth, the selenium absorption is inhabited through the sulfur, the inhabitation effect is relieved after the seedling biomass is increased, the better selenium accumulation effect is reached while the selenium poison in the breeding early period is avoided, and finally, the improvement of the selenium content in seedlings and finished products is realized. The substrate is utilized for producing the selenium-enriched agricultural products, the selenium enriching is transferred to the breeding period from the ordinary transplanting, the fertilizer application operation in the later period is avoided, the labor is greatly saved, simplicity and convenience are realized, finally, the selenium content of the selenium-enriched agricultural products can be greatly improved, and in addition, stability and standardization are realized.
Description
Technical field
The present invention relates to a kind of rich selenium seedling medium and utilize it to produce the method for Se-rich farm products, belong to cultivation field.
Background technology
Selenium is a kind of humans and animals trace elements necessary, have remove radical anti-oxidant, delay senility, biological characteristicses such as anticancer, strengthening immunity, antagonism heavy metal.It is 50～250 μ g that a day selenium intake is recommended by Chinese Soclety of Nutrition.The main meals that lean in human body selenium source are taken in, but China adult's average day selenium intake only have about 36 μ g, and therefore, the selemium nutrition condition of poor is at China's ubiquity.The data that WHO announces shows that also the whole world has more than 40 country to belong to low selenium or scarce selenium area.Rich selenium agricultural byproducts are human body supplement selenium element effective ways, and therefore, technique of enriched selenium is scientists study hot of research and development field.
The selenium content of farm crop generally receives the influence of factors such as crop varieties, agronomy control measures, Selenium in Soil content and some physical and chemical index.China belongs to the serious country that lacks selenium, and the whole nation has 70% area all to belong to lack the selenium area approximately.The selenium deficiency of soil has directly caused the deficiency of selenium content in most of regional farm crop, makes China a big chunk crowd be in the selemium nutrition deficiency state.Watermelon has long cultivation and food custom as a kind of extensive consumption, fruit suitable for all ages in China.The watermelon selenium content that common area produces generally is lower than 1 microgram/kilogram, and people are very limited from the selenium of wherein taking in, and are a kind of better approach of enhances human body selemium nutrition level so carry out selenium nutrition-intensified to it.
The higher area of some Selenium in Soil content of China can produce rich selenium agricultural byproducts, but also has the region unhomogeneity owing to selenium content in the soil of rich selenium area distributes, and this mode of production is quantitatively controlled difficult to the selenium content in the product.Simultaneously; China also has a lot of executing through foliar applied fertilizer or root to contain the report that selenium fertilizer carries out Se-rich farm products production now; But realize the method for the production of final agricultural byproducts with cultivation through rich selenium seedling; Compared easy to operately with above-mentioned several method, the absorption rate of selenium is high, target level of product qualityization and the advantage that has good stability.
" I distinguish green morning vegetables garden adopt the rich selenium new technology of growing seedlings " " window of Liaoning foreign trade " (http://liaoning.mofcom.gov.cn/aarticle/sjdixiansw/201010/201010 07181309.html); Disclose a kind of nanometer selenium biological nutrient liquid and mixed the seedlings and soil new technology; Cultivate rich selenium vegetables dish seedling, growing seedlings than usual way can shift to an earlier date 10 days to the two weeks field planting, does not need seedling-slowing stage after the field planting; And dish shoot root system is flourishing, and Miao Lvmiao strengthens emerald green stalwartness.The vegetable seedling of cultivating has not only shortened nursery stage, and has grow fast, characteristics such as disease and pest is few, vegetables quality good, anti-storage, and output has also increased 30-50%.It is the beneficial element of plant that this method has been utilized selenium, has reached better nursery effect, but to whether selenium is not sure of in the follow-up vegetables the finished product.
Chinese invention patent " the rich selenium vegetables of rich vegetable seedling, method of cultivation and production " (application number 201010580224.6), " the organic selenium-rich rice of Selenium rich rice rice shoot, its method of cultivation and production " (application number 201010580228.4) disclose a kind of in seedling medium, the interpolation and contain the selenium material to cultivate the purpose that reaches the rich selenium product of final production through rich selenium seedling; But this method is the murder by poisoning to seedling in seedling stage for fear of selenium; The degree that selenium is strengthened is limited, and promptly the content of selenium all can not get improving largely in selenium consumption in the seedling medium and the finished product.
Summary of the invention
The objective of the invention is: a kind of rich selenium seedling medium is provided, and utilizes it to produce the method for Se-rich farm products.
The invention provides a kind of method that selenium-enriched seedling reaches the selenium content upper limit in the final agricultural-food of producing through rich selenium seedling technology of putting forward.
Technical scheme of the present invention is: a kind of seedling medium, comprise outside the conventional substrate composition, and when containing selenium, also wrap a certain amount of sulphur.This matrix utilizes the competition of sulphur and selenium to absorb relation; Suppress the absorption of selenium through sulphur at the initial stage that seedling is grown; And this restraining effect is diluted in the big process of the biological quantitative change of seedling, accumulates effect thereby reach preferably selenium, finally realize in the seedling with the finished product in the raising of selenium content.
Selenium is biological effectiveness selenium in the seedling medium.
The source of selenium is to contain the biological effectively material of selenium in the matrix; Can be one or more mixing that contain in selenite, selenate, seleniferous mineral and the machining object thereof with arbitrary proportion; Can also be nanometer selenium plant nutrient agent (Suzhou selenium paddy Science and Technology Ltd. produces, product type XGP001A).
Sulphur is sulfate radical in the seedling medium.
The source of sulphur can be a vitriol in the matrix, such as one or more mixing in calcium sulfate, vitriolate of tartar, ammonium sulfate, the sodium sulfate.
The ratio of selenium and sulphur is 1:2-10 in the seedling medium.
As preferably, the ratio of biological effectiveness selenium and sulfate radical is 1:2-10 in the seedling medium.
As preferably, the ratio of biological effectiveness selenium and sulfate radical is 1:4-8 in the seedling matrix.
As preferably, the ratio of biological effectiveness selenium and sulfate radical is 1:5 in the seedling matrix.
The present invention also provides the method for utilizing this matrix to produce the organic selenium-rich agricultural-food: the characteristics according to agricultural-food are prepared seedling medium according to conventional component; And add selenium source and the sulphur source of 1:2-10 therein; Carry out cultivation and the transplanting and the field management of seedling afterwards according to the routine techniques flow process, finally can gather in the crops the agricultural-food of rich selenium.
Technique effect of the present invention and beneficial effect are following:
Added an amount of SO in this matrix
4 2-Make that certain antagonistic action takes place the selenium in the sulphur and matrix in the crop seedling early growth period, make that the selenium in the seedling is unlikely to accumulate the degree of poisoning that produces, simultaneously in constantly increase process of seedling later stage living weight; Added sulfate radical is absorbed by plant basically; Antagonistic action weakens, thereby makes the higher selenium of seedling accumulation, thereby realizes finally accumulating the production Se-rich farm products through seedling.
Produce rich selenium agricultural byproducts through this matrix, the selenium strengthening process is transferred to nursery stage after the transplanting of routine, avoid later stage fertilising operation, greatly saved manual work, simple and convenient.And the selenium content of final Se-rich farm products is stable, stdn, and can improve the higher limit of agricultural-food content.
Produce rich selenium agricultural byproducts through this matrix, use the fertile Se-rich farm products of producing of selenium big Tanaka, can significantly improve the absorption rate of selenium, practiced thrift cost and avoided selenium residual in soil with respect to transplanting the back.
Embodiment
Following examples are used to explain the present invention, but can not be used for limiting scope of the present invention.The implementation condition that adopts among the embodiment can be done further adjustment based on the condition of concrete producer, and unaccounted implementation condition is generally the condition in the normal experiment.
Selenium-rich rice substrate formula and the application in selenium-rich rice is produced thereof
Instance one:
In the seedling cultivation of rice process; With the conventional rice seedling medium with the basis; Is the sulphur source with nanometer selenium plant nutrient agent (Suzhou selenium paddy Science and Technology Ltd. produces, product type XGP001A) for selenium source, with sodium sulfate, and selenium concentration in the matrix is adjusted to 30 mg/kg; Sulphur concentration is adjusted to 60 mg/kg, carries out raising rice seedlings according to old process behind the uniform mixing; Following of equal conditions is set simultaneously selenium concentration in the matrix is adjusted to the control group that 30 mg/kg do not add sulphur; Find yellow leaf in the control group growth course; And the no selenium of " selenium+sulphur " group is poisoned the phenomenon generation; After old process transplanting and field management, the selenium-rich rice selenium content that final control group is produced is lower than 150 microgram/kilograms, and " selenium+sulphur " is about 200 microgram/kilograms.
Instance two:
In the seedling cultivation of rice process;, be selenium source with the sodium selenate, be the sulphur source with sodium sulfate with the basis with the conventional rice seedling medium, selenium concentration in the matrix is adjusted to 50 mg/kg; Sulphur concentration is adjusted to 500 mg/kg, carries out raising rice seedlings according to old process behind the uniform mixing; Following of equal conditions is set simultaneously selenium concentration in the matrix is adjusted to the control group that 50 mg/kg do not add sulphur; Find that the control group selenosis is dead; And the no selenium of " selenium+sulphur " group is poisoned the phenomenon generation; According to old process transplant with field management after, final selenium+sulphur " to organize the selenium-rich rice selenium content of being produced be about 300 microgram/kilograms.
Instance three:
In the seedling cultivation of rice process; With the basis, to contain selenium ore sodium selenate with activation be selenium source, be the sulphur source with sodium sulfate with the conventional rice seedling medium, and selenium concentration in the matrix is adjusted to 40 mg/kg; Sulphur concentration is adjusted to 320 mg/kg, carries out raising rice seedlings according to old process behind the uniform mixing; Following of equal conditions is set simultaneously selenium concentration in the matrix is adjusted to the control group that 40 mg/kg do not add sulphur; Find yellow leaf poor growth in the control group growth course; Do not reach the transplanting requirement; And the no selenium of " selenium+sulphur " group is poisoned the phenomenon generation, and after old process transplanting and field management, the selenium-rich rice selenium content that final " selenium+sulphur " group is produced is 250 microgram/kilograms.
Instance four:
In the seedling cultivation of rice process;, be selenium source with the Sodium Selenite, be the sulphur source with sodium sulfate with the basis with the conventional rice seedling medium, selenium concentration in the matrix is adjusted to 20 mg/kg; Sulphur concentration is adjusted to 80 mg/kg, carries out raising rice seedlings according to old process behind the uniform mixing; Following of equal conditions is set simultaneously selenium concentration in the matrix is adjusted to the control group that 20 mg/kg do not add sulphur; Find that blade slightly turns to be yellow in the control group growth course; And the no selenium of " selenium+sulphur " group is poisoned the phenomenon generation; After old process transplanting and field management, the selenium-rich rice selenium content that final control group is produced is lower than 80 microgram/kilograms, and " selenium+sulphur " is about 150 microgram/kilograms.
Rich selenium watermelon substrate formula and the application in rich selenium watermelon is produced thereof
Instance five:
In the watermelon seedling culturing process; With conventional watermelon seedling culturing substrate with the basis; Is the sulphur source with nanometer selenium plant nutrient agent (Suzhou selenium paddy Science and Technology Ltd. produces, product type XGP001A) for selenium source, with sodium sulfate, and selenium concentration in the matrix is adjusted to 20 mg/kg; Sulphur concentration is adjusted to 20 mg/kg, carries out the watermelon seedling according to old process behind the uniform mixing and cultivates; Following of equal conditions is set simultaneously selenium concentration in the matrix is adjusted to the control group that 20 mg/kg do not add sulphur; Find that blade slightly turns to be yellow in the control group growth course; And the no selenium of " selenium+sulphur " group is poisoned the phenomenon generation; After old process transplanting and field management, the rich selenium watermelon content that final control group is produced is lower than 10 microgram/kilograms, and " selenium+sulphur " is about 15 microgram/kilograms.
Instance six:
In the watermelon seedling culturing process;, be selenium source with the Sodium Selenite, be the sulphur source with sodium sulfate with the basis with conventional watermelon seedling culturing substrate, selenium concentration in the matrix is adjusted to 30 mg/kg; Sulphur concentration is adjusted to 150 mg/kg, carries out the watermelon seedling according to old process behind the uniform mixing and cultivates; Following of equal conditions is set simultaneously selenium concentration in the matrix is adjusted to the control group that 30 mg/kg do not add sulphur; Find yellow leaf in the control group growth course; And the no selenium of " selenium+sulphur " group is poisoned the phenomenon generation; After old process transplanting and field management, the rich selenium watermelon content that final control group is produced is lower than 20 microgram/kilograms, and " selenium+sulphur " is about 30 microgram/kilograms.
Instance seven:
In the watermelon seedling culturing process;, be selenium source with the sodium selenate, be the sulphur source with sodium sulfate with the basis with conventional watermelon seedling culturing substrate, selenium concentration in the matrix is adjusted to 40 mg/kg; Sulphur concentration is adjusted to 400 mg/kg, carries out the watermelon seedling according to old process behind the uniform mixing and cultivates; Following of equal conditions is set simultaneously selenium concentration in the matrix is adjusted to the control group that 40 mg/kg do not add sulphur; Find yellow leaf in the control group growth course; And the no selenium of " selenium+sulphur " group is poisoned the phenomenon generation; After old process transplanting and field management, the rich selenium watermelon content that final control group is produced is lower than 30 microgram/kilograms, and " selenium+sulphur " is about 50 microgram/kilograms.
Instance eight:
In the watermelon seedling culturing process;, be selenium source to contain selenium selenium ore, be the sulphur source with sodium sulfate with the basis with conventional watermelon seedling culturing substrate, selenium concentration in the matrix is adjusted to 60 mg/kg; Sulphur concentration is adjusted to 300 mg/kg, carries out the watermelon seedling according to old process behind the uniform mixing and cultivates; Following of equal conditions is set simultaneously selenium concentration in the matrix is adjusted to the control group that 60 mg/kg do not add sulphur; Find that seedling does not reach the transplanting requirement in the control group growth course; And the no selenium of " selenium+sulphur " group is poisoned the phenomenon generation; After old process transplanting and field management, the rich selenium watermelon content that final control group is produced is lower than 50 microgram/kilograms, and " selenium+sulphur " is about 80 microgram/kilograms.
Claims (10)
1. a rich selenium seedling medium comprises the conventional substrate composition, it is characterized in that: also comprise selenium and sulphur.
2. rich selenium seedling medium according to claim 1 is characterized in that: described selenium is biological effectiveness selenium.
3. rich selenium seedling medium according to claim 1 is characterized in that: described sulphur is sulfate radical.
4. rich selenium seedling medium according to claim 1; It is characterized in that: described selenium is to contain the biological effectively material of selenium, can be one or more mixing with arbitrary proportion that contain in selenite, selenate, seleniferous mineral and machining object thereof, the nanometer selenium plant nutrient agent.
5. rich selenium seedling medium according to claim 1 is characterized in that: described selenium is the nanometer selenium plant nutrient agent.
6. rich selenium seedling medium according to claim 1, it is characterized in that: described sulphur is vitriol, such as one or more mixing in calcium sulfate, vitriolate of tartar, ammonium sulfate, the sodium sulfate.
7. according to each described rich selenium seedling medium in the claim 1 to 6, it is characterized in that: the ratio of selenium and sulphur is 1:2-10 in the said seedling medium.
8. according to each described rich selenium seedling medium in the claim 1 to 6, it is characterized in that: the ratio of selenium and sulphur is 1:4-8 in the said seedling medium.
9. according to each described rich selenium seedling medium in the claim 1 to 6, it is characterized in that: the ratio of selenium and sulphur is 1:5 in the said seedling medium.
10. a method of producing the organic selenium-rich agricultural-food is characterized in that: prepare seedling medium according to conventional component, and add selenium source and the sulphur source of 1:2-10 therein, carry out cultivation and the transplanting and the field management of seedling afterwards according to the routine techniques flow process.
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| CN107011017A (en) * | 2016-12-26 | 2017-08-04 | 江苏省农业科学院 | A kind of vegetables selenium-rich organic seedling medium |
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| CN108353777A (en) * | 2018-04-19 | 2018-08-03 | 万翠霞 | A kind of selenium-rich organic Green leaf vegetable matrix efficiency cultivation technology for high |
| CN108496781A (en) * | 2018-04-19 | 2018-09-07 | 万翠霞 | A kind of selenium-rich organic solanaceous vegetables matrix efficiency cultivation technology for high |
| CN108566879A (en) * | 2018-04-19 | 2018-09-25 | 万翠霞 | A kind of selenium-rich organic melon-fruit-like vegetable matrix efficiency cultivation technology for high |
| CN108575667A (en) * | 2018-04-19 | 2018-09-28 | 万翠霞 | A kind of selenium-rich organic allium vegetables matrix efficiency cultivation technology for high |
| CN110150095A (en) * | 2019-06-28 | 2019-08-23 | 江苏省农业科学院泰州农科所 | A kind of method for culturing seedlings of taro selenium-rich organic seedling medium and preparation method thereof and selenium-rich taro |
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| CN108496781A (en) * | 2018-04-19 | 2018-09-07 | 万翠霞 | A kind of selenium-rich organic solanaceous vegetables matrix efficiency cultivation technology for high |
| CN108566879A (en) * | 2018-04-19 | 2018-09-25 | 万翠霞 | A kind of selenium-rich organic melon-fruit-like vegetable matrix efficiency cultivation technology for high |
| CN108575667A (en) * | 2018-04-19 | 2018-09-28 | 万翠霞 | A kind of selenium-rich organic allium vegetables matrix efficiency cultivation technology for high |
| CN110150095A (en) * | 2019-06-28 | 2019-08-23 | 江苏省农业科学院泰州农科所 | A kind of method for culturing seedlings of taro selenium-rich organic seedling medium and preparation method thereof and selenium-rich taro |
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Application publication date: 20121121 |