Resumo

LAURA APAZA, Gabriela  e  LOPEZ BLANCO, Carlos.   Evaluation of uniform system pressurized drip irrigation. Apthapi [online]. 2017, vol.3, n.3, pp. 740-750. ISSN 0102-0304.

Abstract:                The drip irrigated interested because of the high water application efficiency (85-95%) and the reduction in operating costs. Like any innovation requires proper management to ensure the return on investment is therefore appropriate to assess a facility to check the design criteria, also to monitor the seáis of issuers. The aim of this study was to evalúate the uniformity of application of a pressurized irrigation system drip. The study was conducted at the Experimental Station Choquenaira Agronomy - UMSA, located 8 km from the city of Viacha, Department of La Paz, in 2013. The assessment of uniformity of the irrigation system was based on the methodology of Merriam and Keller, 1978; and points for determining the method of gauging Water Center was used in an área of 1400 m². The response variables studied were: hydraulic behavior of the issuer, indicators uniformity of flow and pressure and analyze the behavior of irrigation. The pressure /flow ratio determined traffic flow, whose regime was turbulent, meaning that no blockage problems will have on issuers. The worst uniformity coefficient of 69.61% was reflected in the coefficient of variation was 13.68% being excluded from the categorization. The basic infiltration rate of the soil was 6.54 mm.h^-1(Franco clay loam), considered high. Wet diameter dimensions were 14 cm wide and 18 cm long, with a depth of 10 wet bulb cm.h^-1, discharge flow issuer 1.4 l.h^-1.

Palavras-chave : Pressurized drip irrigation; application efficiency; issuers; uniformity of application flow; turbulent.