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Wind, Wind Erosion, Sand Storms and Dunes

Description: Photograph of of a row of 60-year old cottonwood trees planted by John Rhus. The present state of the trees without understory is causing a more detrimental wind action than if no trees were present through the funneling of the wind along the ground surface. OK-10, 276.
Date: September 27, 1949
Creator: Gardener, G. C.
Partner: Oklahoma Conservation Historical Society

Grass, Legume and Forb Cultivation

Description: Photograph of Paspalum stramineum (left), Woodward strain and (Chickasha and Rush Springs, Oklahoma strain, (right) according to No 0-1358, in an observational nursery. Middle rows harvested for hay yields. OK-8378.
Date: July 30, 1942
Creator: Smith, James E.
Partner: Oklahoma Conservation Historical Society

Grass, Legume and Forb Cultivation

Description: Photograph of different strains of sideoats grama grass in a breeding nursery. Left: Selection #438 open-pollenated. Center left: Selection #438 self-pollenated. Center right: Selection #439 self-pollenated. Right: Selection #439 self-pollenated OK-8372.
Date: July 10, 1942
Creator: Smith, James E.
Partner: Oklahoma Conservation Historical Society

Grass, Legume and Forb Cultivation

Description: Photograph of variations in rate of spread between Buffalo grass plants set out in the Spring of 1941. The plant on the left measures 42 inches and the one on the right measures two and a half inches. OK-8388.
Date: August 23, 1941
Creator: Smith, James E.
Partner: Oklahoma Conservation Historical Society

Grass, Legume and Forb Cultivation

Description: Photograph of grass plantings nest to tree rows on the Station. Pictures taken to show one possible method of covering the exposed area commonly found adjacent to shelterbelts. Evidence of these photos may not be too conclusive since all the grass plantings are young, but the physical fact of establishment is illustrated. OK-8741.
Date: March 1944
Creator: Smith, James E.
Partner: Oklahoma Conservation Historical Society

Grass, Legume and Forb Cultivation

Description: Photograph of Buffalo grass (Bouteloua dactyloides). A perennial, stoloniferous*, generally dioecious‡, highly palatable, drought-resistant pasture grass. Used for grazing, lawns, erosion control, outlet channels and pasture outlets. Widely adapted to soils where climatically adapted. Best on clay and loam types. Will survive on shallow soils too droughty for Bermuda grass. It is best adapted to regions having between 15 and 30 inches of rainfall. Other pasture plants may it out in high rainfal… more
Date: September 12, 1949
Creator: Postlethwaite, Hermann
Partner: Oklahoma Conservation Historical Society

Grass, Legume and Forb Cultivation

Description: Photograph of different strains of sideoats grama grass in a breeding nursery. Left: Selection #432 open-pollenated. Center: Selection #432 self-pollenated. Right: Selection #434 open-pollenated. OK-8374.
Date: July 10, 1942
Creator: Smith, James E.
Partner: Oklahoma Conservation Historical Society

Wind, Wind Erosion, Sand Storms and Dunes

Description: Photograph of a close-up showing how exactly soil blows as William Trarel sifts it through his fingers. This is a lower part of a 65-acre field of cotton, grain sorghum and sudan grass that washed out in 19 inches of rain on June 22, 1948. Silt deposited in the lower part of the field has created a blow problem. OK-9657.
Date: July 20, 1948
Partner: Oklahoma Conservation Historical Society

Farming Equipment and Methods

Description: Photograph of E.S. Cordell, work unit leader, Soil Conservation Service, Hugo, Oklahoma and Mrs. Laura C. Pickens, land owner. Featuring crop rotation and soil improvement. Two rows of corn and one row of peas. OK-8788.
Date: July 7, 1944
Creator: Jenkins, Elvin W.
Partner: Oklahoma Conservation Historical Society

Farming Equipment and Methods

Description: Photograph of a channel-type terrace construction using 4 foot Fresno Scraper with a 3-mule team. The dirt from the third plowing of the channel has been moved into the ridge. Note in the completed terrace the broad flat channel and easy slopes on the ridge. Channel cross sectional area is 16.5 square feet and its effective height is 1.6 ft. OK-8344-N.
Date: March 20, 1942
Creator: Jenkins, Elvin W.
Partner: Oklahoma Conservation Historical Society

Farming Equipment and Methods

Description: Photograph of a channel-type terrace construction using 4 foot Fresno Scraper with a 3-mule team. The dirt from the third plowing of the channel has been moved into the ridge. Note in the completed terrace the broad flat channel and easy slopes on the ridge. Channel cross sectional area is 16.5 square feet and its effective height is 1.6 ft. OK-8344-D.
Date: March 20, 1942
Creator: Jenkins, Elvin W.
Partner: Oklahoma Conservation Historical Society

Farming Equipment and Methods

Description: Photograph of terrace maintennance. Showing terrace harrowed [i.e., as using a harrow plow] to simulate appearance after plowed out channel has been settled by rain. Notice the changed slope of the channel as indicated by the ropes. The cross-sectional area of the channel has been increased by 3.9 square feet. OK-8117-B.
Date: February 18, 1941
Creator: Jenkins, Elvin W.
Partner: Oklahoma Conservation Historical Society
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