Ohio Agronomy Guide, 14th Edition

Bulletin 472-05

Contents

• Preface


• Chapter 1—Ohio’s Climate and Soil
  • Soil Formation and Soil Properties
  • Soil Properties and Crop Management
    • Organic Matter Content
    • Soil Texture
    • Subsoil pH
    • Soil Water Available to Plants
    • Slope of the Topography
    • Natural Soil Drainage
  • Ohio Soil Regions
  • Available Data on Soil Properties


• Chapter 2—Soil and Water Management
  • Drainage—The Critical Factor
  • Managing Soil Structure
  • Efficient Water Use
  • Irrigation
  • Soil Conservation
  • Conservation Practices
  • Conservation Tillage and No-Till
    • Basics of Conservation Tillage
    • Drainage
    • Soils
    • Compaction Considerations
    • Cover Crops
    • Planting
    • Fertilization
    • Soil Testing
    • Weed Control
  • Considerations for Crop Production on Mine Soils


• Chapter 3—Soil Fertility
  • Elements Essential for Plant Growth
    • Primary Macronutrients
    • Secondary Macronutrients
    • Micronutrients
    • Animal Manure
    • Calculating Fertilizer Rates
  • Lime and Liming Materials
    • Determination of Lime Requirement
    • Liming Materials
    • Lime Recommendations
    • Adjustments for the Type of Liming Material
    • Adjust for the Depth of Tillage
    • No-Till Adjustments
    • Other Adjustments in Lime Recommendations
    • Why Re-liming Is Necessary
    • Acidic Subsoils
    • Organic Soils (Muck and/or Peat)
    • High Organic Matter Soils
  • Diagnostic Methods
    • Soil Testing
    • Soil Sampling
    • Soil pH and Buffer pH
    • Available Phosphorus
    • Exchangeable Potassium
    • Cation Exchange Capacity
    • Calcium to Magnesium Ratio
    • Magnesium to Potassium Ratio
    • Soluble Salts
    • Plant Analysis
    • Plant Sampling
    • Interpretation of Recommendations


• Chapter 4—Corn Production
  • How Climate Affects Corn Production
    • Temperature
    • Precipitation
  • Corn Growth and Development
    • Hybrid Selection
    • Maturity
    • Days-to-Maturity Rating System
    • Growing-Degree-Day (GDD) Maturity Rating System
    • Yield Potential and Stability
    • Stalk Quality and Lodging
    • Disease Resistance and Tolerance
    • Grain Quality
    • Date of Planting
    • Seeding Depth
    • Row Width
    • Plant Populations and Seeding Rates
    • Making Replant Decisions
  • Fertility Recommendations
    • Nitrogen
    • Phosphorus and Potassium
    • Crop Rotations
  • Corn Pest Management
    • Weed Control
    • Insect Control
    • Disease Control
  • Harvesting
    • Test Weight
    • Ear Corn
    • Corn Silage
  • Specialty Types of Corn
  • Isolation Requirements for Identity Preserved (IP) Non-GMO Corn Production


• Chapter 5—Soybean Production
  • Variety Selection
  • Variety Performance Trials
  • Disease Control
    • Early Season and Seed-Borne Diseases
    • Mid-Season to Late-Season Soybean Diseases
  • Crop Rotation
  • Tillage
  • Producing Soybeans Without Tillage
  • Rhizobium Inoculation
  • Planting Date
  • Late Planting
  • Row Spacing
  • Skip-Row Planting Systems
  • Plant Population
  • Replanting
  • Planting Depth
  • Fertilization Recommendations
    • Nitrogen (N)
    • Phosphorus (P)
    • Potassium (K)
    • Calcium (Ca) and Magnesium (Mg)
    • Sulfur (S)
    • Manganese (Mn)
  • Insect Control
  • Weed Control


• Chapter 6—Small Grain Production
  • Wheat Production
    • Variety Selection
    • High-Quality Seed and Seed Treatment
    • Crop Rotation
    • Land Selection and Preparation
    • Planting Date
    • Seeding Practices
      • Row Width
      • Lodging Control
    • Fertilization
      • Nitrogen
      • Phosphorus
      • Potassium
      • Manganese
    • Disease Control
    • Insect Control
    • Weed Control
  • Production of Other Small Grain Species
  • Weed Control for Small Grains


• Chapter 7—Forage Production
  • Perennial Forages
    • Species Selection
      • Agronomic Adaptation & Intended Use
      • Pure Stands vs. Mixtures
      • Mixtures for Hay and Silage
      • Mixtures for Pastures
      • Seeding Rates
      • Examples of Seeding Rates for Mixtures
    • Characteristics of Perennial Cool-Season Forages
    • Forage Species Identification
    • Pre-establishment Fertilization and Liming
      • Soil pH
      • Topsoil pH Levels for Forages
      • Phosphorus and Potassium
      • Pre-establishment Fertilization for No-Till
      • Starter Nitrogen
    • Stand Establishment
      • Crop Rotation and Autotoxicity
      • Seed Quality
      • Seed Inoculation
      • Seed Treatments
      • Spring Seedings
      • Late Summer Seedings
      • Conventional Tillage Seeding
      • No-Till and Minimum-Till Seeding
    • Seeding Year Harvest Management
    • Fertilizing Established Stands
      • Timing Topdress Applications
      • Nitrogen Fertilization
      • Micronutrients
      • Grass Tetany
    • Established Stand Harvest Management
      • First Harvest Timing
      • Summer Harvest Timing
      • Intensive Cutting for High Quality
      • Fall Harvesting
    • Minimizing Fall Harvesting Hazard to Tall Legumes
    • Weed Management in Forages
    • Insect Pest Management
  • Warm-Season Forages
    • Annual Lespedeza (Kummerowia spp.)
    • Perennial Warm-Season Grasses
    • Annual Forage Crops
      • Small Grains for Forage
      • Establishment and Fertilization
      • Harvest Management
      • Grazing Management
      • Animal Health Concerns with Small Grains
    • Summer-Annual Grasses
      • Establishment
      • Fertilization
      • Harvest Management
      • Animal Health Concerns
      • Reducing the Risk of Prussic Acid Poisoning in Sorghum Species
    • Brassica Crops
      • Establishment
      • Fertilization
      • Harvesting
      • Animal Health Concerns With Brassicas


• Chapter 8—Multiple Cropping
  • Multiple Cropping Requirements
    • Double Cropping With Forages
    • Double Cropping Wheat and Soybean
    • Relay Intercropping Wheat and Soybean
    • Alternative Wheat/Soybean Relay Intercropping System
  • Emergency Aerial Seeding


• Chapter 9—Pasture and Grazing Management
  • Grazing Systems
  • Stocking Rate
  • Grazing Management
  • Feed Budgeting
  • Improving Production
    • Fertilization
    • Weed Control
    • Pasture Renovation
  • First-Year Management of Renovated Pastures
    • Pasture Species and Cultivar Selection
    • Cool-Season Grass Species
    • Legumes
    • Other Species
    • Mixtures
  • Toxicity


• Chapter 10—Alternative Crops
  • Buckwheat Production
  • Canola Production
  • Grain Sorghum Production
  • Sugarbeet Production
  • Sunflower Production
  • Other Alternative Crops


• Chapter 11—Variety Evaluation, Seed Quality, and the Seed Law
  • Seed Quality Test
  • Seed/Variety Protection Laws


• Chapter 12—Principles of Weed Management in Agronomic Crops
  • Weed Management in Corn
  • Weed Management in Soybeans
  • Weed Management in Wheat
  • Managing Weeds in Forage Legumes
    • Control Before and During Forage Establishment
    • Control in Established Forages


• Appendix