The specifics of technical and exploitation properties of micro-irrigation systems in greenhouse production

Abstract

During the growth of cucumbers on the experimental field "Zeleni hit d.o.o." Belgrade inside of high tunnel the different systems were tested: micro sprinkler Agridor-4190 and T-tape drip irrigation with different flows and emitter's distances. Experimental data have shown full uniformity of water flow on all micro sprinklers along the sub mains. Fallowing tests of drip tapes we could emphasize that model TSX 508-15-1000 has the best characteristics of water flow uniformity along the lateral runs, with the lower Cv values on both working pressures. On the other hand, this model has shown the biggest influence of increasing working pressure on the water flow per one meter of lateral.

U toku gajenja useva krastavca na imanju "Zeleni hit d.o.o.", Beograd, u plasteniku tipa visoki tunel, korišćeni su: mikrorasprskivač tipa Agridor-4190 i T-tape trake za navodnjavanje kap po kap, različite veličine protoka i rastojanja između emitera. Eksperimentalno ispitivanje je pokazalo potpunu ujednačenost emisije vode na svim mikrorasprskivačima po dužini cevovoda. Ispitivanje traka za navodnjavanje pokazuje da model TSX 508-15-1000 ima najbolje karakteristike ujednačenosti emisije vode po dužini trake, sa najmanjim koeficijentima varijacije na obe vrednosti radnog pritiska. Istovremeno, kod ovog modela je najviše izražen uticaj promene radnog pritiska na veličinu emisije izraženu po metru dužine laterala.