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- H. H. Lawson's Stock Cutter
- Photograph of H. H. Lawson examining stalks of Crotalaria cut with his home built stalk cutter. The back of the photograph proclaims, “H. H. Lawson examines stalks of Crotalaria cut with his home built stalk cutter. A piece of 12” pipe and old road grader blades were utilized in constructing the implement. Cost, approximately $40.00.”
- Field Fertilizer and Rye Variety Test; Winter Cover Crop
- Photograph of two UNIDENTIFIED men inspecting and testing various grasses and field fertilizers. The back of the photograph proclaims, "Field fertilizer and rye variety test; winter cover crop. Left: Strip Abruzzi rye (30#) and hairy vetch (10#) per acre, unfertilized. Center: Strip common rye (30#) and hairy vetch (10#) fertilized with 120# superphosphate (0-20-0) per acre. All strips planted October 29, 1944 (to be harvested for seed). Results per acre: Right strips (Fertilized) Hairy Vetch, 8494#-4 ¼ Tons, Rye, 1 ¾ T. Total, 6 T. Middle Strip (Fertilized). Left Strip (Unfertilized) Hairy vetch, 103#--1/20 Tons, Rye 1 ½ T. Total, 1 ½ T. Soil: 7-9-B-2."