Testing your soil is highly recommended! Testing helps prevent overuse of fertilizers and other amendments, as well as informing you on what to apply to make your garden spectacular! For more info on soil testing for New Mexico see the NMSU article Appropriate Analyses for New Mexico Soils at https://pubs.nmsu.edu/_a/A146/.
Soil Testing is available by mail from:
Check both sites for sampling instructions, prices, tests available and other information.
Here are a couple of examples of soil test results from Colorado State, so you can see what type of information is provided:
The Colorado State lab also provides a Soil Test Interpretation Guide to help you understand the recommendations in your soil test results.
For information about private well water, see https://www.env.nm.gov/drinking_water/private-wells-2/
To have plant samples tested for possible insect, bacterial or viral problems, take fresh samples in a plastic bag to the Bernalillo County Extension Office on Monday or Tuesday (8:00 am-noon; 12:30-4:00), or Wednesday morning. This is a free service provided by the Extension Service. The Extension office is located at 1510 Menaul Boulevard NW (near 12th St), Albuquerque, NM 87107