Read Next
grain drill: References & Edit History
More Articles On This Topic
Article Contributors
Primary Contributors
Other Encyclopedia Britannica Contributors
Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Invalidated site: PennState Extension - Plants and Pests - Crops and Soils - Calibration of Grain/Seed Drills. | Nov 26, 2019 | ||
| Add new Web site: PennState Extension - Plants and Pests - Crops and Soils - Calibration of Grain/Seed Drills. | Dec 01, 2016 | ||
| Add new Web site: Purdue Extension - Grain Drill Metering Systems and the Need for Calibration. | Dec 01, 2016 | ||
| Media added. | Feb 10, 2010 | ||
| Article added to new online database. | Jul 20, 1998 |
View Changes:
Article History
Revised:
By: