Ia- 1181 - H. G. Bromelkamp ,Monona , Ia. - 7/ 22/38
Soil profile of field protected with sod in 1932
during an intense May rain. Contrast with following picture , Ia- 1182
Ia- 1182 - H. G. Bromelkamp ,Monona , Ia. - 7/ 22/38
Soil profile of field seeded with small grain in May rain of 1932. Compare with Ia-1181. he average depth of topsoil is 4 inches. Soil is Tama silt loam.
