Publication Information
Title: New tree puller increases yield 20%
Author: Kerr, E.
Date: 1977
Source: Popular Science 210(5):12
Description: A new tree harvester that extracts both taproot and stem makes a pine tree 20 percent more useful. The machine shears the lateral roots close to the taprrot and then plucks the entire tree from the ground like a carrot. The concept was developed by Dr. Peter Koch at the U.S. Forest Service's Southern Forest Experiment Station in Pineville, La. The shearing apparatus is mounted on a John Deere 544 or Caterpillar 920 prime mover, which serves as a crane.
Keywords:
View and Print this Publication (98 KB)
Publication Notes:
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility
Citation
Kerr, E. 1977. New tree puller increases yield 20%. Popular Science 210(5):12
|