• Agricultural Water Table Management Systems
• Understanding Agricultural Drainage

University of Minnesota

• Agricultural Drainage
• Frequently Asked Questions about Subsurface (Tile) Drainage
• How to Run a Percolation Test
• Identifying and Sealing Agricultural Drainage Wells
• Planning an Subsurface Agricultural Drainage System
•  Pumping Plants for Subsurface (Tile) Drainage
• Soil Water Concepts

Information about Irrigation

Colorado State University

• Estimating Soil Moisture
• Irrigation Scheduling 
• Irrigation Scheduling: The Water Balance Approach
• Irrigation Scheduling with Atmometers 
• Irrigation Water Quality Criteria
• Irrigation of Winter Wheat

North Dakota State University

• Irrigation Power Unit Selection
• Selecting a Sprinkler Irrigation System
• Planning to Irrigate...A Checklist
• Operation and Maintenance of Irrigation Wells
• Irrigation Scheduling by the Check Book Method
• Irrigation Water Pumps
• Irrigation Water Sample Analysis
• Soil, Water and Plant Characteristics Important to Irrigation

Information about Crop Progress and Conditions, Soil Moisture Maps Drought Indices

Weekly Crop Progress and Growing Conditions Reports

• Minnesota
• North Dakota
• South Dakota

Vegetation Conditions and Drought Monitoring

• U.S.Drought Monitor (National Drought Mitigation Center)
• Vegetation Conditions (USDA)