AGRIS

Data provider:

Icon data provider

The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

Journal Article

Journal article

Penetration forces at different soil conditions for punches used on punch planters  [1996]

Molin, J.P. (University of Nebraska, Lincoln.); Bashford, L.L.;

Access the full text

  • NOT AVAILABLE
Penetration forces of punches designed for use in a no-till punch planter were evaluated for two soils at three different moisture levels and three bulk density levels. The standard cone penetrometer was used as a reference. A procedure using PVC molds for preparing standardized soil samples, measured penetration resistance at 40, 60, and 80 mm. The penetration forces for two punch widths approximately doubled at each depth interval. Soil moisture content at typical field conditions required the highest penetration forces. Changes in bulk density resulted in the biggest changes in penetration force. At median moisture level, increments of 0.15 Mg/m3 in bulk density for a silt loam soil and of 0.20 Mg/m3 for a sandy loam soil resulted in approximately a threefold increase in penetration forces. A good correlation was observed between the cone penetrometer data and the penetration forces for the two punches

Access the full text

  • NOT AVAILABLE
Loading...

Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
1997
Volume:
39
Issue:
2
Start Page:
423
End Page:
429
All titles:
" Penetration forces at different soil conditions for punches used on punch planters "
Other:
" references "

From the journal

Transactions of the ASAE (USA)

ISSN : 0001-2351