The effect of irrigation on yield of raspberry cv Willamette in the rainy growing season
2005
Milivojevic, J.,Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Matovic, G.,Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Bosnjakovic, G.,Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Ruml, M.,Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Gajic, B.,Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Milivojevic, J.,Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Zivkovic, M.,Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Cecic, N.,Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Denic, M.,Institut PKB Agroekonomik, Padinska Skela (Serbia)
The effect of irrigation on fresh raspberry fruit was studied at two localities of Arilje-Pozega raspberry growing area (Serbia), differing in geomorphology, microclimate and soil types, at distance of water emitter on the lateral of: R1 = 0.5 m and R2 = 0.75 m and at various irrigation rates of: 2 mm/day, 4 mm/day and 6 mm/day in rainy raspberry growing season of 2002. Raspberry cv Willamette gave different yields on two soil types without irrigation. Almost 7 t/ha more fresh fruit was harvested on brown forest soil than on alluvial soil. It can be explained by different pH soil value in effective root system zone (pH=5.9 in brown forest soil, 3.05 in alluvial), water retention soil capacity, and differing bearing potential of planting in early growing season. The different increase in yield was also recorded under conditions of irrigation, at different watering regimes, on various soil types. At the same time, different watering rates, of different duration (1, 2 and 3 hours per day) did not result in major differences in terms of fresh fruit yield. Also, different distances of water emitters on laterals of 0.5 m and 0.75 m did not result in significant difference in yields on brown forest soil, as opposed to alluvial. A heavier yield by 12% was achieved with emitter distance of 0.5 m. It can be concluded that raspberry responds to irrigation by yield increase even in rainy years, regardless of the geo-morpho-pedoclimatic environmental conditions under which it is grown.
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