Selenium-enriched milk vetch plant material, preparation method and application thereof
A plant material, a technology of vetch, which is applied in the field of vetch rich in selenomethionine, can solve the problems of limited reduction and utilization, short selenium persistence, etc., so as to avoid environmental hazards and promote absorption and utilization. , the effect of large accumulation of selenium
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Embodiment 1
[0032] Under soil cultivation conditions, mix sodium selenite with a certain amount of slaked lime at the seedling stage of milk vetch to obtain a mixture of pH 7-8, and apply it to the soil where milk vetch grows to make it grow The average selenium content in the soil of the plow layer is 1mg / kg. When harvested, the milk vetch plants were collected for selenium content testing. The total selenium content was about 5mg / kg, and the selenium in the form of selenomethionine accounted for about 80%.
[0033] Under hydroponic conditions, adjust the pH of the culture medium of milk vetch to 7-8, mix sodium selenite and sodium selenate with any amount and add it to the culture medium, so that the average selenium content in it is 1mg / kg, to When harvesting, the milk vetch plants were collected to test the selenium content. The total selenium content was about 8 mg / kg, and the selenium in the form of selenomethionine accounted for about 80%.
[0034]Under soil cultivation conditions...
Embodiment 2
[0037] Under soil cultivation conditions, sodium selenate is mixed with a certain amount of sodium hydroxide to obtain a mixture of pH 7-8 before the bolting of milk vetch, and it is applied to the soil where milk vetch grows to make it grow The average selenium content in the soil of the cultivated layer is 50mg / kg. When harvesting, the milk vetch plants are collected for selenium content testing. The total selenium content is about 300mg / kg. Among them, the proportion of selenium in the form of selenomethionine is About 80%.
[0038] Under hydroponic conditions, the pH of the culture medium was adjusted to 7.5 before the bolting of milk vetch, and sodium selenite, sodium selenate, and selenoamino acids were mixed in any amount and added to the culture medium to make the selenium content evenly 50mg / kg. When harvested, the milk vetch plants were collected to test the selenium content. The total selenium content was about 400mg / kg, and the selenium in the form of selenomethion...
Embodiment 3
[0042] Under soil cultivation conditions, sodium selenite is mixed with a certain amount of potassium hydroxide at the seedling stage of milk vetch to obtain a mixture of pH 7-8, and it is applied to the soil where milk vetch grows to make it The average selenium content in the growing plow layer soil is 100mg / kg. When harvested, the milk vetch plants are collected for selenium content testing. The total selenium content is about 800mg / kg. Among them, the selenium in the form of selenomethionine accounts for than about 80%.
[0043] Under hydroponic conditions, the pH of the culture medium was adjusted to 8 before the bolting of milk vetch, and sodium selenite, sodium selenate, and selenoamino acid were mixed in any ratio and added to the culture medium to make the selenium content evenly 100mg / kg. When harvested, the milk vetch plants were collected to test the selenium content. The total selenium content was about 1000mg / kg, and the selenium in the form of selenomethionine a...
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