Published September 1946. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
The main purpose for irrigating is to supply needed water for
crops. Plant growth is dependent on photosynthesis. While the plant
exchanges gases with the air for photosynthesis, some water
evaporates. Water is taken up from the soil by plant roots to replace
this water. The water leaving the plant...
When designing or retrofitting an irrigation
system, one of the key decisions is picking the
proper size pipes and fittings for the system. The
best pipe size or fitting is not always the one with
the lowest initial cost. The important consideration
is the lowest cost of ownership. The objective...
This “walk-through” worksheet provides a method for making an organized inspection of an entire
irrigation system, both hydraulics and hardware. This inspection will help identify components that need
maintenance, repair, replacement, or other attention—so that the system will provide the most satisfactory,
safe, and efficient performance.
Published March 1963. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Discusses the advantages of drip irrigation and how it can help growers use water efficiently. Covers basic concepts related to components and design as well as management considerations such as placement of the tape, timing and rates, maintenance, and adjustments to fertilizer rates.
More than 4.5 million acres in the Pacific
Northwest are irrigated with electric-powered
sprinkler systems. Center pivots are used on about
1.25 million acres. Irrigation runoff can be a problem
on many of these sprinkler-irrigated fields.