Agricultural and Biosystems Engineering Publications

Document Type

Article

Publication Version

Published Version

Publication Date

2002

Journal or Book Title

Applied Engineering in Agriculture

Volume

18

Issue

4

First Page

405

Last Page

409

Research Focus Area(s)

Advanced Machinery Engineering and Manufacturing Systems

DOI

10.13031/2013.8744

Abstract

Growers of 38–cm (15–in.) narrow row corn typically use either a wider row cornhead or locally modify an existing head to this row spacing. A three–year field experiment compared visible machine losses of a 76–cm (30–in.) cornhead used on 76–cm (30–in.) and 38–cm (15–in.) rows and a single gathering chain 38–cm (15–in.) cornhead used on 38–cm (15–in.) rows. Total machine losses were divided into head and threshing/separating losses.

On matched row spacing, machine losses were generally similar between the 76– and 38–cm (30– and 15–in.) cornhead. However, one–year losses from the 76–cm (30–in.) cornhead were statistically lower. Machine ear drop losses were excessive [0.9 to 1.3 Mg/ha (15 to 20 bu/acre) in two of three years] and unacceptable when a 76–cm (30–in.) cornhead was used even at low 3.2–km/h (2–mph) travel speeds to harvest corn in 38–cm (15–in.) rows. At low feed rates, over 90% of machine losses occurred at the cornhead rather than in the threshing, separating, and cleaning areas. Header losses occurred due to ear drop from late season harvest and negligible losses inside the machine when operated at 4.8 km/h (3 mph). Although shelling of kernels on the stalk rolls was about 1% of harvested yield or less, ear drop loss from the cornhead was greater than this amount in two of three years.

Comments

This article is from Applied Engineering in Agriculture 18 (2002): 405–409, doi:10.13031/2013.8744. Posted with permission.

Copyright Owner

American Society of Agricultural and Biological Engineers

Language

en

Date Available

2015-04-13

File Format

application/pdf

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