Selenium-enriched wheat planting method
A wheat and selenium-enriched technology, applied in botany equipment and methods, plant cultivation, fertilizer mixtures, etc., can solve problems such as pollution, inaccurate quantification of selenium content, toxicity, etc., and achieve the effect of promoting absorption and accumulation and avoiding the risk of poisoning
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Embodiment 1
[0016] Carry out soil preparation, seed selection, seed treatment, fertilization, and sowing according to the normal planting steps of wheat. When the wheat reaches the jointing stage, apply 100 kg / mu of topdressing fertilizer in combination with a selenium-enriched nutrient solution with a mass fraction of 20%, wherein the selenium source is selected from sodium selenite, the physical adsorbent is selected from cellulose, and the selenium source catalyst is selected from formate dehydrogenase. The mass ratio of selenium source to physical adsorbent and catalyst is 1:1. The wheat was harvested in time after maturity, and the selenium content was detected to be 180 mg / kg after harvesting, and the selenium in the form of organic selenium (selenomethylselenocysteine) accounted for 83% of the total selenium content.
Embodiment 2
[0018] Carry out soil preparation, seed selection, seed treatment, fertilization, and sowing according to the normal planting steps of wheat. When the wheat reaches the jointing stage, apply 100kg / mu of topdressing fertilizer in combination with a selenium-enriched nutrient solution with a mass fraction of 20%, wherein the selenium source is sodium selenite, the physical adsorbent is cellulose, and the mass ratio of the selenium source to the physical adsorbent is 1:1. The wheat was harvested in time after maturity, and the selenium content was detected to be 165 mg / kg after harvesting, and the selenium in the form of organic selenium (selenomethylselenocysteine) accounted for 65% of the total selenium content.
Embodiment 3
[0020] Carry out soil preparation, seed selection, seed treatment, fertilization, and sowing according to the normal planting steps of wheat. When the wheat reaches the jointing stage, apply 120kg / mu of topdressing fertilizer in combination with a selenium-enriched nutrient solution with a mass fraction of 25%, wherein the selenium source is sodium selenite, the physical adsorbent is cellulose, and the mass ratio of the selenium source to the physical adsorbent is 1:1. The wheat was harvested in time after maturity, and the selenium content was detected to be 190 mg / kg after harvesting, and the selenium in the form of organic selenium (selenomethylselenocysteine) accounted for 89% of the total selenium content.
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