نتایج جستجو برای: sprinklers
تعداد نتایج: 257 فیلتر نتایج به سال:
Abstract In the presented paper, we evaluated quality of work and economics use irrigation system consisting micro-sprinklers. The experiment took place on football field in countryside southwest Slovakia. original was replaced with a modern one, using control unit, rainfall sensor, in-ground distribution pipes consisted components forming main detailed equipment for irrigating an area 4,272 m ...
In order to increase the distribution uniformity of sprinkler irrigation systems, some influential parameters such as wind speed, arrangement, space and type of sprinklers must be studied and controlled. In this study, a set of experiments were conducted based on ISO 7749/2(1990) standard to evaluate the ADF 250 and Nelson, F80APV sprinklers. To study the effects of wind velocity, operating pre...
Litchi (Litchi chinensis Sonn.) is an important subtropical evergreen fruit crop of Sapindaceae family. Fruit cracking a serious problem in litchi happen during growth and its development. affect significant loss economic yield. coincides with period characterized by high day temperature (35-40°C) low relative humidity (60%). Effect water sprinkling over tree canopy on cracking, quality yield w...
The purpose of the study is to develop a procedure for determining parameters layout active sprinkler equipment in closed irrigation systems. This paper presents importance transforming agricultural production into highly developed sector economy which impossible without reducing its dependence on adverse climatic conditions. introduction modern computer-integrated technologies, including preci...
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