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Agronomic Services — Corn Tissue Sampling, slide 5 of 7

Post-season Corn Stalk Nitrate Test  ($5 per sample for NO3-N measurement only)

corn, post-season stalk nitrate.During the 3-wk period following formation of
the black layer, collect 8-in. sections of stalk
from15 locations. Collect the 8-in. section
beginning 6 in. above the soil line and ending
14 in. above the soil line.

Codes to put on the Plant Sample Information form:

Growth Stage:   M (mature)

Plant Part:          H (harvest)

Plant Position:   L (lower plant)

Illustration from Univ. Nebraska-Lincoln Extension
button to select first slide in series.button to select previous slide in series.button to select next slide in series.button to select last slide in series.button to select corn pictorial index.button to return to crop tissue sampling pictorial menu.

Last Update August 22, 2011



NCDA&CS Agronomic Services Division, Colleen M. Hudak-Wise, Ph.D., Director
Mailing Address: 1040 Mail Service Center, Raleigh NC 27699-1040
Physical Address: 4300 Reedy Creek Road, Raleigh NC 27607-6465
Phone: (919) 733-2655; FAX: (919) 733-2837