States
Counties
Day
4 Matching Results
Results open in a new window/tab.
Results:
1 - 4 of
4
Soils, Soil Erosion, Soil Conservation & Crop Management
Photograph of soil (noting condition). Plow pan is completely separated from tilled soil above and subsoil below. Pan is approximately 1 inch thick on soil unit 6. This condition was formed by 40 years of cropping to soil depleting crops. Sample was taken from a field where poor land use practices were followed. OK-329-12.
Date:
July 29, 1956
Creator:
McConnell, John
System:
The Gateway to Oklahoma History
Soils, Soil Erosion, Soil Conservation & Crop Management
Photograph of two soil samples. The left shows deterioration due to 40 years of soil depleting cropping systems. The right by contrast shows a good soil sample where good grass rotation have been practiced. Note the color and the structure of the samples. OK-328-4.
Date:
July 29, 1956
Creator:
McConnell, John
System:
The Gateway to Oklahoma History
Soils, Soil Erosion, Soil Conservation & Crop Management
Photograph of soil (noting condition). Profile of soil under poor land treatment (left) in contrast with soil under excellent cropping system (right). The poor treatment of above shows poor structure and low organic matter. The good treatment shows good structure and very high organic matter. OK-329-1.
Date:
July 29, 1956
Creator:
McConnell, John
System:
The Gateway to Oklahoma History
Soils, Soil Erosion, Soil Conservation & Crop Management
Photograph of soil (noting condition). Plow pan is completely separated from tilled soil above and subsoil below. Pan is approximately 1 inch thick on soil unit 6. This condition was formed by 40 years of cropping to soil depleting crops. Sample was taken from a field where poor land use practices were followed. OK-328-1.
Date:
July 29, 1956
Creator:
McConnell, John
System:
The Gateway to Oklahoma History