In February, 1986, Midwest Laboratories began analyzing soils for sulfur using ICAP (Inductively Coupled Argon Plasma) rather than turbidmetrically. Whereas colorimetrically we were measuring degree of turbidity (cloudiness of solution extract) to determine plant available SO4-S only, with the ICAP we are actually burning the sample to determine SO4-S and some organic fractions of sulfur.
We’ve compiled here a list of tests that might interest you based on your specific search.
We’ve compiled here a list of resources that might interest you based on your specific search.
Midwest Labs will use distilled deionized water to measure pH on routine soil samples. Upon customer requests, we will run a salt pH by adding calcium chloride to the water.READ MORE
Understanding your soil analysis can be achieved with the basic soil test interpretation guide.READ MORE
Sulfur is an essential nutrient for crop production and yield response to sulfur fertilizer varies greatly.READ MORE