Salts in High Tunnels
Some growers have expressed concern about soil test analysis revealing abnormally high soluble salt levels in the soils of their high tunnels. This factsheet outlines past studies and recommendations.
Soluble salts can accumulate when the application of inorganic or organic fertilizers to soils is accompanied by dry conditions, irrigation water high in soluble salts is used and/or the amount of water received at a site is inadequate to flush salts from the root zone. The result is saline soils. This factsheet outlines plant response and ways to measure soil salt levels.