02001naa a2200241 a 450000100080000000500110000800800410001910000150006024500520007526000090012730000150013650000270015152013300017865000160150865000120152465000230153665000240155965000100158365000240159365000120161770000170162977301130164610107012018-12-17       1999    bl uuuu     u00u1 u    #d1 aGARCIA, C.  aEffect of irrigation on sweet onion in Uruguay.  c1999  ap. 161-166  aIrrigation Association  aABSTRACT. During 1997 and 1998 the effect of complementary water supply at different growing stages on production and storage ability was studied. Granex 33 cultivar was transplanted in beds 1.5 m appart with four rows (280000 plants/ha). Small rain out shelters were used, (2x3 m), to cover each plot in different periods . Treatments were: 1. covered ali the growing season and non irrigation in 1997 and non irrigation without cover in 1998; 2. covered from, bulbing to harvest; 3. covered up to bulbing and 4. rainfall plus irrigation.  Treatment 2, 3 and 4 was similar in 1997 and 1998. When the tensiometers reached -0.25 bar at 20 cm depth. Treatments were arranged in a randomized block design with four replications. Irrigation was applied with drippers at 0.50 m appart anda flow rate of 1.75 l/h. Tensiometers and steel rods were installed at 20 cm depth in each plot to measure soil water content. TDR measurements were collected twice a week. Significant difference in total and marketable yield were obtained both years. Total yield was 51 ton/ha in 1997 and 66.7 ton/ha in 1998, respectively. There were not significant differences in total and marketable yield between treatment 2 and 3 in 1997 and 1998. Non irrigation and treatment 2 showed better storage ability as compared with treatment 3 and 4 in 1997.  aALLIUM CEPA  aCEBOLLA  aMANEJO DEL CULTIVO  aNECESIDADES DE AGUA  aRIEGO  aRIEGO POR ASPERSION  aURUGUAY1 aARBOLEYA, J.  tln: Technical Conference Proceedings, 1999, Orlando, Florida, USA Proceedings 1999. Florida (USA): IA, 1999.