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| Agricultural Education | 2 |
| Extension Education | 2 |
| Herbicides | 2 |
| Plant Growth | 2 |
| Plant Science | 2 |
| Weeds | 2 |
| Agricultural Safety | 1 |
| Agricultural Trends | 1 |
| Agronomy | 1 |
| Chemical Nomenclature | 1 |
| Field Crops | 1 |
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| Hartwig, Nathan L. | 2 |
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| Journal Articles | 2 |
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Hartwig, Nathan L. – 1975
This agriculture extension service publication from Pennsylvania State University examines agronomic weed problems and control. Contents include a listing of the characteristics of weeds, a section on herbicides, and a section on the important weeds of agronomic crops in Pennsylvania. The herbicide section discusses systemic herbicides, contact…
Descriptors: Agricultural Education, Agronomy, Extension Education, Field Crops
Hartwig, Nathan L. – 1976
This agriculture extension service publication from Pennsylvania State University is an introduction to weed control and herbicide use. An initial discussion of the characteristics of weeds includes scientific naming, weed competition with crops, weed dispersal and dormancy, and conditions affecting weed seed germination. The main body of the…
Descriptors: Agricultural Education, Agricultural Safety, Agricultural Trends, Chemical Nomenclature
