drip irrigation system

Lemma

drip irrigation system

Etichetta di dominio

EN

Etichetta grammaticale

c. n.

Definizione

[...] an irrigation method which minimizes the use of water and fertilizer by allowing water to drip slowly to the roots of plants, either onto the soil surface or directly onto the root zone, through a network of valves, pipes, tubing, and emitters. 1

Nota

Drip emitters come in two basic configurations: compensating and non-compensating. Compensating emitters provide nearly the same discharge rate over a wide range of operating pressures. Non-compensating emitters will have a change of discharge rate corresponding with a change of operating pressures. […] Drip emitters are also available in two distinct styles: online and inline. Online emitters are typically attached to the outside of the supply tubing in the field using a barbed fitting. Thus the emitter spacing can be random or repeating, depending on the desired outcome. Inline emitters are placed inside the tubing during the manufacturing process and are spaced at a predetermined interval. […] While this system has proven effective, several caveats also must be considered. First, above ground drip irrigation promotes weed growth and moisture directly under the vines. Weeds are more difficult to control here as opposed to the row centers. Preemergent herbicides are washed out during the growing season due to the large amount of water applied under the drip emitters. Most vines are grown on berms, and in tighter soils water runs off to form tire ruts in the rows. Finally, moisture is always problematic under the vine canopy, especially where the drip emitters are. 2

Contesto

During the wine renaissance of the 1980s & 1990s more vineyards converted to [the] drip irrigation system which allowed greater control and helped reduce yields. 3

Trascrizione fonetica

[drɪp ˌɪr.ɪˈgeɪ.ʃən ˈsɪs.təm] 4

Sinonimi e Antonimi

Trickle irrigation system, microirrigation system. 5

Abbreviazioni
ND
Etimologia

Drop: O.E. dropa "a drop of liquid," from P.Gmc. *drupon (cf. O.S. dropo, O.N. dropi, Du. drop, O.H.G. tropfo, Ger. Tropfen (n.)), from PIE *dhreu-. Meaning "an act of dropping" is from 1630s; of immaterial things (prices, temperatures, etc.) from mid-19c.
Irrigation: "a supplying of water to land," 1610s, from L. irrigationem (nom. irrigatio) “a watering,” noun of action from pp. stem of irrigare.
System: 1610s, "the whole creation, the universe," from L.L. systema "an arrangement, system," from Gk. systema "organized whole, body," from syn- "together" + root of histanai "cause to stand" from PIE base *sta- "to stand" (see stet). 6

Etichetta di paese
ND
Ente

Università degli Studi di Genova - Facoltà di Lingue e letterature straniere - Corso di laurea Teorie e tecniche della mediazione interlinguistica

Data della scheda
Thu Oct 9 00:00:00 2008
Autore

Marco Carchia rev. Gerbaudo

Fonti

1 : «http://en.wikipedia.org/wiki/Drip_irrigation», (30/07/2008)

2 : «http://cit.cati.csufresno.edu/research_publications/98/980803/index.html», (04/11/2011)

3 : «http://en.pschitt.info/page/Merlot», (04/11/2011)

4 : «http://dictionary.cambridge.org/», (04/11/2011)

5 : «http://en.wikipedia.org/wiki/Drip_irrigation», (30/07/2008)

6 : «http://www.etymonline.com/index.php», (04/11/2011)

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