Well water irrigation questions
Here is an analysis of our well water Will gypsum ammendments work and occasional washing with drinking water for our lawn and garden?
chloride 122 mg/l SAR 14.0 ratio
conductivity 0.967 mmho/cm tds 619 mg/l
total N 1.3 mg/l sulfur 53 mg/l
total sodium 220 mg/l
Moffat County Colorado
Adding a soluble calcium source such as gypsum to a soil with a high SAR may help with infiltration and other problems if it is followed by leaching with a higher quality water source. Before you do this I would recommend taking a soil sample and having it analyzed with a saline/sodic package from an agricultural laboratory. This way you will know how much gypsum to add and what the current salt level is. Read more on managing this situation at: http://extension.colostate.edu/topic-areas/agriculture/managing-sodic-soils-0-504/