Originally Posted by sulston
Good to know, thanks a lot. A&L is the lab I have near me where I'll be taking all my samples also. I was real curious as to how many people get the bioassay/biodiversity(not really sure the difference in those two) tests done as they're the real expensive ones, about $200 per test if I recall. Thanks for the info guys!
Sulston, I get the basic fertility test including micro Nutrients on all new lawn programs. This test does include the base saturation and total nutrient analysis. I have never had a bio assay or diversity test done. For my work, those type of test would just be an extra expense. 99.99% of my work is done in subsoil conditions where bio life forms just aint going to be in great numbers and I already know that microbial innocculants are needed. For the $200 cost of the bio test, I can just go ahead and buy the innocculant and apply it.
On older lawns, I will have the same basic test with micro's for the first testing, just to establish what I am working with. In most cases, micros arent an issue and I will concentrate on P,K,Ca,Mg,S. In some cases, I also have to look at Boron,Copper and Zinc. I very seldom have an issue with iron and have never had a problem with Na.