[032-015] Prehistoric Botany
Prehistoric Botany Author: Gumbart, L. F.
[032-014] Effects of the Soybean Crop on Soil Productivity
Effects of the Soybean Crop on Soil Productivity Authors: Sears, O.H. and Burlison, W.L.
[032-013] Relationship in Soils of Total Nitrogen, Total Replaceable Bases, and Productivity
Relationship in Soils of Total Nitrogen, Total Replaceable Bases, and Productivity Author: Snider, H.J.
[032-012] Residual Benefits Resulting from Activities in Connection with Agricultural Adjustment Programs
Residual Benefits Resulting from Activities in Connection with Agricultural Adjustment Programs Author: Whalin, Oren L.
[032-011] Does it Pay to Make an Individual Ear Test of Hybrid Corn?
Does it Pay to Make an Individual Ear Test of Hybrid Corn?Author: Koehler, Benjamin