Agricultural Research Bulletins, Nos. 489-521

Volume 34, Bulletins 489-521. (489) Ownership of Iowa's Farmland; (490) Identification and Measurement of Inefficiencies in Leasing Systems; (491) Comparison of Resource Returns of Well-Organized Iowa Farms with Selected Nonfarm Opportunities; (492) Iowa Livestock Producers' Choice of Markets; (493) Methodology of Programming Small Watershed Development; (494) North Central Regional Potassium Studies: I. Field Studies with Alfalfa; (495) Organoleptic, Chemical, Physical and Microscopic Characteristics of Muscles in Eight Beef Carcasses, Differing in Age of Animal, Carcass Grade and Extent of Cooking; (496) Specialization and Pork Production Methods in Relation to Over-All Farm Resource Use and Integration; (497) Maternal Employment, Family Relations and Selected Personality, School-Related and Social-Development Characteristics of Children; (498) Soil Erosion Control in Western Iowa: Progress and Problems; (499) Response of Corn Yields in a Planosol Soil to Surface Drainage, Cropping System and Variable Fertilizer Treatments; (500) Description and Measurement of Rates of Early Mortality in the Pig; (501) Appraisal of the Federal Feed--Grains Programs; (502) Production, Income and Resource Changes from Farm Consolidation; (503) North Central Regional Potassium Studies; (504) Farm Size and Cost Relationships in Relation to Recent Machine Technology; (505) Poultry Supply Functions (The Relation of Technical Change to Output of Eggs, Broilers and Turkeys); (506) Derivation of Hydrographs for Small Watersheds from Measurable Physical Characteristics; (507) Short-Run Corn Supply and Fertilizer Demand Functions Based on Production Functions Derived from Experimental Data: a Static Analysis; (508) Occupational Plans of Iowa Farm Boys; (509) Factors Related to Employment of Wives in a Rural Iowa County; (510) Factors Related to Interreligious Marriages in Iowa, 1953-57; (511) Interregional Competition and Prospective Shifts in the Location of Livestock Slaughter; (512) Survival Rates Among Religiously Homogamous and Interreligious Marriages; (513) Effects of Light and Soil Moisture on Forest Tree Seedling Establishment; (514) Analysis of Direct-Payment Methods for Hogs to Increase Hog Producers' Incomes; (515) Distributed Lag Inventory Analyses; (516) Migration and Adjustment of Farm and Nonfarm Families and Adolescents in Cedar Rapids, Iowa; (517) Beef-Cattle Production Functions in Forage Utilization; (518) Production Functions and Methods of Specifying Optimum Fertilizer Use Under Various Uncertainty Conditions for Hay; (519) Profit-Maximizing Plans for Soil-Conserving Farming in the Spring Valley Creek Watershed in Southwest Iowa; (520) Estimation of Soil Moisture Under Corn; (521) Regional Changes in Grain Production: An Application of Spatial Linear Programming</p