How to Cultivate Selenium-Enriched Garlic? Detailed Explanation of Key Planting Techniques

The selenium application methods commonly used in the production of selenium-enriched garlic mainly include three: seed soaking, soil selenium application, and foliar spraying. The cultivation techniques for producing selenium-enriched garlic are described below.

1. Seed soaking: Use a 100% mg/kg sodium selenate solution and soak the seeds for several hours before sowing. Garlic yield generally increases by 10%, and the selenium content also increases.

2. Soil selenium application: Before sowing garlic, apply 13 grams of sodium selenate per mu, combined with other base fertilizers, evenly applied in the sowing furrows. This generally increases yield by about 15% and has a clear effect of increasing selenium content.

3. Foliar spraying: One month before harvest, prepare sodium selenate into a concentration of 100 mg/kg and apply 5 grams of pure selenium per mu, evenly spraying it on the garlic leaves. This generally increases garlic yield by about 10%, and selenium is clearly enriched.

4. Precautions: The amount of selenium used must be controlled accurately. Too much will produce toxic effects, while too little will not achieve the selenium-enrichment effect. When applying to soil and spraying, it must be even; for spraying, choose before 9 a.m. or after 5 p.m. on a sunny day. If it rains after spraying, respray.