AN ESSAY KEY FOR THE PHOTO IDENTIFICATION OF FARM CROPS AT SEVERAL INTERVALS DURING THE GROWING SEASON IN NORTHERN ILLINOIS. PART IV. PHOTO APPEARANCE OF CORN FIELDS

reportActive / Technical Report | Accession Number: AD0023701 | Open PDF

Abstract:

The aerial-photographic characteristics which differentiate corn fields from other crops during the growing season are discussed nubby texture, shadows, late harvest date, shocks, and tonal values. Farm practices which affect the photo appearance of corn fields are date of cultivation, date and method of harvest, crop uses, seed variety, planting date, field preparation, fertilization, and prior land use. Aerial stereopairs of corn fields during different growth intervals are included. See also AD-15 690

Author(s):
Kohn, Clyde F.
Author Organization(s):
NORTHWESTERN UNIV EVANSTON IL
Pagination:
0035

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
TR3
Contract/Grant Number(s):
N7ONR45005
Monitor Series:
ONR
 Subject Terms
Joint Capability Areas:
JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_6.4.1_Secure Information Exchange; JCA_1.2.3_Educating; JCA_6.4_Information Assurance; JCA_6_Net Centric
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*PREPARATION, VALUE, INTERVALS, CORN, SEASONS, AUDIO TONES, GROWTH(GENERAL), LAND USE
Field(s)/Group(s):
Defense Systems
Report Date:
1953 Sep 30