Systems Guide - Use
- Watering Times
Times and intervals for watering differ according to the type of plant.
The most important factor to remember is the depth of the root zone
and soil composition. The deeper the roots and the finer the soil, the
longer the watering time must be, but frequency of watering will be
reduced. A finer soil such as clay, with which most of us are blessed,
cannot absorb water very quickly, but will hold the moisture for a longer
period of time. Shallow root zones and sandy soil types will require
frequent watering of a shorter duration. Observe plant and soil moisture
conditions and adjust watering times and intervals to maximize plant
growth and minimize water use.
In a system with mixed plantings, some compromises may have to be made
between plants that require occasional deep watering and those that
prefer frequent shallow watering. This can be partly accomplished by
using emitters of higher output on the deep-rooted plants. If this is
not practical because of other factors, a compromise can be reached
by doing shallow watering on a frequent basis as well as occasional
deep watering. The first irrigation cycle should be a much longer one
than normal. You will want to completely establish the wet zone in each
plant’s root zone. This cycle should be from 1 hour up to possibly
6 hours, depending on the plant material that you’re watering
and the type of soil.