Total carbon and/or Nitrogen:
The process involves combustion of the plant material using Leco Truspec CN analyzer and Elementar Variomax CNS analyzer. Results are reported as percent total carbon and nitrogen.
Corn stalk nitrate test:
Used as end-of–the-season nitrogen assessment test. Sample collection technique is critical for correct interpretations and recommendations. Samples should be placed in paper (NOT PLASTIC) bags and sent to the lab as soon as possible. Samples should be refrigerated (not frozen) if stored for more than a day before mailing. Results take 3-4 weeks due to longer period required for drying the stalk samples, and will be mailed or faxed as requested.