Irrigation for Commercial Fruit and Vegetable Production

1/08/2001


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Table of Contents

Irrigation for Commercial Fruit and Vegetable Production

Irrigation Design

Investment or Insurance

Investing in Irrigation

Micro-Irrigation

Plant - Water - Soil

Water Retention

Saturated Soil

Field Capacity

Wilting Point

Water Holding Capacity

Thus,

Irrigation Scheduling

One Inch of Water

Evapotranspiration

Checkbook Method of Irrigation Scheduling

Irrigated Area and Volume

Photo 1

Photo 2

Photo 3

Question: What is your Acreage?

Wetting Pattern with Drip Line on Soil Surface

Wetting Patterns with Drip Line in Raised-Beds

Rooting Depth

Components of Drip Irrigation

Distribution and Filtration

Emitters

Line-Source and Point-Source Emitters

Focus on Line-Source Emitters

Face the Emitters Up

Design Factors

Emitter Spacing

Emitter Discharge

Emitter Discharge

Emitter Discharge

Wall Thickness

Drip Tape Wall Thickness

Drip Tape Wall Thickness

Tubing Diameter

Example

200-foot Length on Zero Percent Slope

600-foot Length on Zero Percent Slope

1000-foot Length on Zero Percent Slope

1000-foot Length on Zero Percent Slope Change to 7/8-inch Diameter

600-foot Length on Five Percent Slope Water Source at Top of Hill

600-foot Length on Five Percent Slope Pushing Water Up the Hill

Connecting Drip Line to Manifold (or Header)

Flat-Tube Connections

Lay-Flat Hose Connections

PVC Pipe Connections

Tubing Connections

Selection of Connectors

Suitability of Irrigation Water

Solids will Plug Emitters

Water Filtration

Water Filtration

Sand Filters

Photo 4

Photo 5

Photo 6

Photo 7

Sand Filters

Sand Filters

Backflushing Sand Filters

Disk Filters

Screen Filters

Water Filtration

Wrap-up

Final Words

Questions ?

Author: John R. Buchanan

Home Page: agebb.missouri.edu/irrigate/