Soil water content is a measurement of the amount of water in a known amount of soil it can be expressed as % water by weight or volume of soil, or inches of water per foot of soil.More detailed information on all of these can be found in the agricultural extension publications listed under Resources. The following terms are commonly used to describe how soil moisture is quantified. For a clear picture of when and how much to water plantings, agricultural managers have long relied on soil moisture measurements landscape professionals can do the same to maximize irrigation efficiency in landscape and turf plantings. Either of these systems may apply more water than is necessary to maintain a healthy landscape. Many systems are automatic: the more complex units are connected to a climate-based electronic controller and run when weather and evapotranspiration data dictate the simpler ones run a set schedule linked only to a time clock. It is common landscape practice to supplement rainfall with the use of an irrigation system to keep plants looking their best.
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