Selenium is not required by plants however it is a vital nutrient for human and animal health. Selenium deficiency in livestock is linked to a number of conditions including reduced fertility, increased mastitis and white muscle disease.
When selenium is included in grassland fertilisers it is taken up by the plant and incorporated into leaf tissues which can then be ingested as either grazed or conserved forage. An advantage of ingesting the selenium in forage is that it is absorbed by the animal more readily than selenium from mineral supplements or boluses which tends to be readily excreted.
Here are the results of several grassland trials and studies showing the effectiveness of increasing selenium levels in forage with selenium containing fertilisers.
The Booster range of grassland fertilisers all contain appropriate rates of selenium with grades available for most situations.