Photograph of proper use of stubble residue Demonstration plot No. 3. Results after tandem disk and twist chisel operations leaving 900 lb. of resudue on surface from original 3900 lb.

Photograph of concedntric-ring infiltrometer used on the experiment station at Cherokee, Okla. It was developed by Maurice B. Cox, Agricultural Engineer, working in cooperation with Louis E. Derr, and W. Elmo Baumann, Soil Sceintist. The water level in the rings are maintained at equal depth with the float chambers from discarded automobilt carbureators. The rate of inflitration is recored by a reconnaissance type recording rain gage as the water for the inner ring is siphoned from the filled gage bucket. Louis E. Derr, Soil Scientist, observing the equipment in operation. The barrel on the stand at the left holds approximately 20 gallons of water for the outer ring supply

Photograph of conservation crop rotation. Kochia weed and salt grass on salt area where it is very difficult to get crops started. The problem is this—getting the crops started. Volunteer kochia weed serves as a priority treatment to get a cover on the land. At certain stages cattle graze readily and it supplies a large amount of organic material when plowed down in a seed-bed preparation. OK-745-2.

Photograph of a stubble mulch grain drill (John Deere) drilling wheat in stubble mulch tillage. Tillage performed by Noble 8" blade. This is rear view of a grain drill seeding wheat in a stubble mulch prepared seedbed.

Photograph of Rod Weeder, one of two tools necessary to do the right kind of job of stubble mulching.

Photograph of a 4 acre strip of weeping lovegrass used as wind-strip and rotation hay and pasture on 7X AB Pratt fine sandy loam. Renhart harvests seed and pastures these strips in the winter with small grain and vetch. Seed harvested 6/20/59 yielded 800 lb. seed on the 4 acres. After 5 years the strips are plowed up and other strips are seeded to control wind erosion.

Photograph of a 4 acre strip of weeping lovegrass used as wind-strip and rotation hay and pasture on 7X AB Pratt fine sandy loam. Renhart harvests seed and pastures these strips in the winter with small grain and vetch. Seed harvested 6/20/59 yielded 800

Photograph of stubble mulch (John Deere) grain drill drilling wheat in stubble mulch tillage. Tillage performed by Noble 8" blade. This is rear view of a grain drill seeding wheat in a stubble mulch prepared seedbed.

Photograph of a Noble Blade stubble mulch tillage machine with blade raised out of ground. It is the preferred type of tillage mulch machine being used on Wheatland Experiment Station by Supt. Harold Meyers.

Photograph of stubble mulch (John Deere) grain drill drilling wheat in stubble mulch tillage. Tillage performed by Noble 8" blade. This is rear view of a grain drill seeding wheat in a stubble mulch prepared seedbed.

Photograph of the proper use of stubble residue, demonstration Plot No. 1. Results after the second large sweep operatiobn leaving 2400 lbs. of straw from the original 3900 lb.

Photograph of "Gullying, sheet erosion, and siltation resulting from 10 inch rain on Grant silt loam, 3-5% slopes. Land was clean tilled." A house is located in the background on top of the hill.

Photograph of a Brillion Seeder used to plant weeping lovegrass strip on 7x AB Pratt, Fine Sandy Loam after soil was prepared with a rod weeder and chisel type machine. The back of the photograph proclaims, "Wind Strip & Rotation Hay and Pasture. Pasture strip on 7x AB Pratt, Fine Sandy Loam showing Brillion Seeder which was used to plant the weeping lovegrass strip after soil was prepared with a rod weeder and chisel type machine."

Photograph of various cropping systems at the Cherokee Experiment Station. The back of the photograph proclaims, "Cropping systems. (A). Caddo Switchgrass 3 year, rotated with 3 years wheat, the wheat yield average 39.9 bu. per acre. (B) Compared to 3 years alfalfa rotated with 3 year wheat, the wheat yields averaged 46.6 bu. per acre. (C) Continuous wheat No. N/A equals 33.5 by per ac. (D). Continuous wheat 40 lb. N/A equals 46.6 bu. per acre. Three years Caddo Switch is only beginning to have its effect on soil improvement."

Photograph of pasture strip on 7X AB Pratt, Fine Sandy Loam showing Brillion Seeder which was used to plant the weeping lovegrass strip after soil was prepared with a Rod Weeded and chisel type machine.

Photograph of 8 months after seeding lovegrass as a conservation crop for rotation hay on Soil Bank land. SCS Technician John Nelson, left, and Robert Lippert, right, observing establishment of weeping lovegrass on 160 acre cropland under Soil Bank Contract 8 months after seeding.

Photograph of Mr. Harold Myers, Wheatland Experiment Station superintendent, holding up wheat stubble and root system which has been released by the Noble Blade stubble mulch tillage machine.

Photograph of pasture strip on 7X AB Pratt, Fine Sandy Loam showing Brillion Seeder which was used to plant the weeping lovegrass strip after soil was prepared with a Rod Weeded and chisel type machine.

Photograph of a John Deere stubble mulch grain drill drilling wheat in stubble mulch tillage. Tillage performed by Noble 8 inch blade. This is front view of grain drill seeding wheat in a stubble prepared seedbed.

Photograph of Noble blade stubble mulch tillage machine being used on Wheatland Exp. Station. This is the first operation by the 8 ft. blade cutting approximately 5 inches under the surface. It raised the slice of dirt slightly, but leaves the stubble and other residue in place.

Photograph of a concentric ring infiltrometer used on the experiment station at Cherokee, Oklahoma. It was developed by Maurice B. Cox, Agricultural Engineer, working in cooperation with Louis E. Darr and W. Elmo Baumann, soil scientists. The water level in the rings are maintained at equal depth with the float chambers made from discarded automobile carburetors. The rate of infiltration is recorded by a reconnaissance of the filled gage bucket. Louis E. Darr, soil scientist, observing the equipment in operation. The barrel on the stand at the left holds approximately 20 gallons of water for the outer ring supply. 10-606.

Photograph of Austrian winter peas and barley in the cropping system. OK-498-6.

Photograph of stubble mulching equipment, here a rod weeder, as one of the two tools necessary to do the right kind of job when stubble mulching. OK-958-7.

Photograph of a plastic protector for a waterway. State soil Conservationist Earl Rowley and Dan Hamill. Work Unit Conservationist [WUC], Weatherford, Oklahoma, demonstrates a plastic cover that can be spread over a Bermuda grass waterway where the slope increase would be a hazard. Water can flow over the plastic preventing erosion. The Bermuda grass receives sunlight through the plastic. Soil moisture loss under the covered area is reduced to a minimum. OK-692-7.