Add to ORKGPhotograph of a UNIDENTIFED man plowing down Austrian winter peas and oats to improve soil structure and maintain material. The back of the photograph proclaims, "Austrian winter peas & oats being plowed to improve soil structure and maintain organic material.
Photograph of an UNIDENTIFED man kneeling and inspecting wheat stubble. The photographer on the back...
Photograph of an UNIDENTIFED man using a system of contour plowing to maintain terrace height. The b...
Photograph of Hubert Adams, and W. T. Fountain, soil conservationist, showing off vetch growth. Peop...
Photograph of an UNIDENTIFED man on a tractor plowing down Austrian winter peas and oats to improve ...
Photograph of an UNIDENTIFED man with horse drawn equipment plowing under Austrian Winter peas as a ...
Photograph of a UNIDENTIFED man on a tractor plowing down oats, Austrian peas, and vetch as part of ...
Photograph of (Herb) Nelson standing in a crop/legume rotated field of Austrian winter peas and smal...
Photograph of UNIDENTIFED man using a Minneapolis-Moline tractor to one wayed alfalfa to increase or...
Photograph of Herb Nelson showing his field consisting of wheat and Austrian Winter peas mixed with ...
Photograph of an UNIDENTIFED man harvesting alfalfa hay. The back of the photograph proclaims, "Alfa...
Photograph of an UNIDENTIFED man on a caterpillar dressing top to spread soil in layers for compacti...
Photograph of an UNIDENTIFIED man on a tractor-plowing vetch under for soil improvement. The back of...
Photograph of an UNIDENTIFED man on a caterpillar dressing top to spread soil in layers for compacti...
Photograph of an UNIDENTIFIED man on a combine harvesting wheat growing from Pullman soils. The back...
Photograph of an UNIDENTIFED man on a John Deere combine, combining wheat on Joe Wheeless Farm. The ...
Photograph of an UNIDENTIFED man kneeling and inspecting wheat stubble. The photographer on the back...
Photograph of an UNIDENTIFED man using a system of contour plowing to maintain terrace height. The b...
Photograph of Hubert Adams, and W. T. Fountain, soil conservationist, showing off vetch growth. Peop...
Photograph of an UNIDENTIFED man on a tractor plowing down Austrian winter peas and oats to improve ...
Photograph of an UNIDENTIFED man with horse drawn equipment plowing under Austrian Winter peas as a ...
Photograph of a UNIDENTIFED man on a tractor plowing down oats, Austrian peas, and vetch as part of ...
Photograph of (Herb) Nelson standing in a crop/legume rotated field of Austrian winter peas and smal...
Photograph of UNIDENTIFED man using a Minneapolis-Moline tractor to one wayed alfalfa to increase or...
Photograph of Herb Nelson showing his field consisting of wheat and Austrian Winter peas mixed with ...
Photograph of an UNIDENTIFED man harvesting alfalfa hay. The back of the photograph proclaims, "Alfa...
Photograph of an UNIDENTIFED man on a caterpillar dressing top to spread soil in layers for compacti...
Photograph of an UNIDENTIFIED man on a tractor-plowing vetch under for soil improvement. The back of...
Photograph of an UNIDENTIFED man on a caterpillar dressing top to spread soil in layers for compacti...
Photograph of an UNIDENTIFIED man on a combine harvesting wheat growing from Pullman soils. The back...
Photograph of an UNIDENTIFED man on a John Deere combine, combining wheat on Joe Wheeless Farm. The ...
Photograph of an UNIDENTIFED man kneeling and inspecting wheat stubble. The photographer on the back...
Photograph of an UNIDENTIFED man using a system of contour plowing to maintain terrace height. The b...
Photograph of Hubert Adams, and W. T. Fountain, soil conservationist, showing off vetch growth. Peop...