Irrigation
Drip
irrigation is the slow and precise delivery of water to chosen
plantings. It uses flexible polyethylene tubing with devices
for dripping water (emitters) and low-volume sprays. Drip irrigation
maintains near-perfect moisture levels in the root zone of
plants, avoiding the too wet/too dry swings typical of overhead
watering. Drip systems are controlled by hand or by an automatic
timer, and can also be used to apply fertilizers directly to
the roots of plants.
Drip
systems irrigate all types of landscape: shrubs, trees, perennial
beds, ground covers, annuals and lawns.
Drip is the
best choice to water roof gardens, containers on decks and
patios, row crops and kitchen gardens, orchards, and vineyards.
Advantages
- A drip system produces healthy, fast-growing plants. In traditional
watering methods there is an extreme fluctuation
in the water content, temperature, and aeration of the soil,
resulting in plant stress. Drip watering keeps the moisture
content of soil relatively constant and ensures that oxygen
remains available
to the root system. For many gardeners, water conservation
is the main reason for installing a drip system. When you
water your garden, your purpose is to water plants rather than
soil.
Drip
irrigation gives you the ability to put water exactly where
it's needed and keep paths and areas between plants
dry. This
reduces both waste and weeding. You can regulate precisely
the amount of water used during irrigation so that nearly
all of
it remains in the root zone. Water lost to evaporation
is negligible compared to overhead watering.
Traditional
watering methods deliver water faster than most soils can absorb.
If
water exceeds the soil's percolation
rate, it
can only run off the surface, taking valuable topsoil
and nutrients with it. On a slope, drip can be designed for
minimum
runoff
and is often the only means of bringing a hillside into
cultivation. Another advantage of drip is that you can
deliver equal amounts
of water to plants over a wide area. This is very hard
to accomplish with other methods of irrigation. |