Corn | Irrigation

Harvesting
Corn is considered mature when the moisture content is 34%. Corn usually will not shell satisfactorily if the moisture content is above 25% without excessive kernel damage occurring. Eighteen to 22% moisture is the most desirable range for harvesting. In recent years, most growers have not harvested until the moisture content has reached 15.5% or lower in order to avoid drying costs.
spaceMoisture content should be 14% or lower for safe long-term storage of shelled corn. Under our summer drying conditions, corn will dry on the stalk to 10% moisture content or less.

 

U.S. STANDARDS FOR CORN
Maximum limits of:
space
Grade Minimum
Test Wt.
(lb/bu)		 Percent
Moisture		 % Broken
Corn &
Foreign
Material		 Damaged
Kernels
Total		 Heat
Damaged
Kernels
space
U.S. No.156.014.02.03.00.1
U.S. No.254.015.53.05.00.2
U.S. No.352.017.54.07.00.5
U.S. No.449.020.05.010.01.0
U.S. No.546.023.07.015.03.0
space

 

U.S. Sample Grade
U.S. Sample Grade shall be corn which does not meet the requirements for any of the grades from U.S. No. 1 to U.S. No. 5, inclusive; or which contains stones; or which is musty, or sour, or heating; or which has any commercially objectionable foreign odor; or which is otherwise of distinctly low quality.
space
Corn | Irrigation
HOME | About | Crops | Contacts | Publications
Modified: 3 Jan 2003
Comments to webmaster@agric.ucdavis.edu