The progressive nature of irrigation automation lies precisely in the predictability of the result of irrigation of the entire area of the site. Full autonomy excludes the need for presence and human participation, makes such watering as close as possible to natural environmental conditions that favorably influence the conditions of crop growth.
It is clear that the automated irrigation system has all the advantages of an automated process. With it, there is no need for personal daily monitoring and participation in irrigation, in the employment of hired labor. But, like all systems of this kind, automation requires significant costs.
Certainly, these costs are paid off in due course by the beautiful view of the plot, increased yield, savings in water discharge( up to fifty percent), and the like. In the cost estimate, in addition to the cost of sensors, controllers and other automation, should include the services of specia
circuit A variety of auto-irrigation systems can be calculated and executed by hand. From the practical point of view, the most simple and made of available materials can be considered suitable. In the most general case, the development of the system should begin with a plan.
Its drawing, executed on a scale( the most suitable experts consider one to one hundred), should reflect all the features of the irrigation: the placement of irrigation points taking into account their type( sectoral, radial) and overlapping areas, water intake sites, irrigation line layouts and their locationsconnection to the supply valve.
It is desirable to take into account the requirement of uniformity of pressure in the lines, provided approximately equal to their length. Considering this, it is better to feed the lines at one point, usually located in the center. Modular branching is also possible, but with the obligatory observance of the requirement of uniformity of the total pressure in the lines.
With combined automation, the automatic drip irrigation system should provide protection against possible clogging of special pipes with evenly spaced holes. As a rule, to prevent such a possibility, such pipes are filled with fractional materials( gravel or coarse-grained sand).
This method allows the use of drip irrigation, laying pipes between plants or burying them to a depth of several centimeters. In the latter version, a total guaranteed moisture band of up to sixty centimeters is provided. If necessary, the drip line also allows the connection of micro-irrigation devices with their outlet above the ground.
Such a complex method is difficult with high mineralization of water, leading to clogging of these devices.
The assembled automatic irrigation system with its own hands should provide irrigation of the entire site, taking into account the peculiarities of its relief. Therefore, all types of irrigation devices are used. Where necessary, sectoral irrigation systems are used, radial centers in the center, etc. Combination of systems( drip, spray, etc.) must take into account the pressure in the lines and be provided by the total capacity of the pump( pumps).