Creator: Iowa. State Planning Board. Committee on Land Utilization / Provider: University of Iowa

11. Permanent pasture & forest Iowa percent of total farm area recomended for forest or permanent pasture based on soil survey by Soils Dept., Iowa State College

1930. Iowa. State Planning Board. Committee on Land Utilization. 1 map black line ; 83 x 113 cm Negative. "Iowa state plan." "Project 1030.". Iowa. State Planning Board.

12. Recommended crop changes Iowa recommended changes in acreage in corn, small grain, hay, pasture, by districts

1930. Iowa. State Planning Board. Committee on Land Utilization. 1 map black line ; 84 x 114 cm Negative. "Iowa state plan." "Project no. 1030." "1030-21.". Iowa. State Planning Board.

13. Shipment of corn & oats percent net shipment of corn & oats combined to total production by regions 1928-1931

1920. Iowa. State Planning Board. Committee on Land Utilization. 1 map black line ; 84 x 115 cm Negative. "Iowa state plan." "Project 1030." "1030-15.". Iowa. State Planning Board.

14. Soil erosion Iowa estimated extent of soil erosion approximate areas based on Iowa Soil Survey

1930. Iowa. State Planning Board. Committee on Land Utilization. 1 map black line ; 83 x 113 cm Iowa state plan. "Project no. 1030.". Iowa. State Planning Board.

15. Synoptical map of existing Iowa agriculture

1930. Iowa. State Planning Board. Committee on Land Utilization. 1 map ; black line; 84 x 113 cm Negative.; "Iowa state plan."; "Project 1030.". Iowa. State Planning Board.

16. Use of crop land distribution of total land in crops into the principal crops, by region, 1932

1930. Iowa. State Planning Board. Committee on Land Utilization. 1 map black line ; 84 x 114 cm Negative. "Iowa state plan." "Project 1030." "1030-27.". Iowa. State Planning Board.

17. Use of farm land Iowa effective acreage, or all land in farms, less acres in forest, wasteland, buildings, roads

1930. Iowa. State Planning Board. Committee on Land Utilization. 1 map black line ; 84 x 114 cm Negative. "Iowa state plan." "Project no. 1030." "1030-22.". Iowa. State Planning Board.

18. Yield of corn average yield of corn in bushels per acre, by region 1928-1932 state average 37.57

1930. Iowa. State Planning Board. Committee on Land Utilization. 1 map black line ; 84 x 115 cm Negative. "Iowa state plan." "Project 1030." "1030-17.". Iowa. State Planning Board.

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11. Permanent pasture & forest Iowa percent of total farm area recomended for forest or permanent pasture based on soil survey by Soils Dept., Iowa State College

12. Recommended crop changes Iowa recommended changes in acreage in corn, small grain, hay, pasture, by districts

13. Shipment of corn & oats percent net shipment of corn & oats combined to total production by regions 1928-1931

14. Soil erosion Iowa estimated extent of soil erosion approximate areas based on Iowa Soil Survey

15. Synoptical map of existing Iowa agriculture

16. Use of crop land distribution of total land in crops into the principal crops, by region, 1932

17. Use of farm land Iowa effective acreage, or all land in farms, less acres in forest, wasteland, buildings, roads

18. Yield of corn average yield of corn in bushels per acre, by region 1928-1932 state average 37.57

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