نتایج جستجو برای: subirrigation
تعداد نتایج: 103 فیلتر نتایج به سال:
The two well known techniques which are used in plant-nutrition studies are conveniently designated the solution-culture method and the sand-culture method. Some other slightly soluble materials, such as cinders, gravel, vermiculite, and Sponge Rok or various combinations of these may be substituted for sand. The use of slightly soluble material as a medium, to which the nutrient solution is pr...
The use of wastewater for irrigation may introduce antimicrobials and human pathogens into the food supply through vegetative uptake. The objective of this study was to investigate the uptake of three antimicrobials and Salmonella in two lettuce cultivars. After repeated subirrigation with synthetic wastewater, lettuce leaves and soil were collected at three sequential harvests. The internaliza...
Economical management of water resources involves on a national scale, including river basins and catchment areas, as well the scale drainage systems. One devices for controlling outflow groundwater from network ditches is flow regulator. In this work, three regulators were studied their damming capacity in adjacent ground with aim determining hydraulic characteristics operating conditions. The...
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