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Published:
Jul 17, 2020DOI:
10.4314/njt.v39i2.33Keywords:
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Main Article Content
Yield, water use and water productivity of drip-irrigated cucumber in response to irrigation depths and intervals in Kaduna, Nigeria
Abstract
A study was carried out at the research farm of the Federal College of Forestry Mechanization, Afaka, Kaduna, Nigeria, to determine the effect of irrigation depths and intervals on the yield, crop water use and water productivity of drip-irrigated cucumber (market-more variety) in two irrigation seasons (2016/17 and 2017/18). Irrigation was scheduled using the reference evaporation data obtained from pan evaporation measurements taken within the experimental periods. The results showed a significant difference in both seasonal crop evapotranspiration and yield at 5% level of significance in both seasons. The highest yields (21 t/ha and 20.3 t/ha) were obtained from the treatments with 100 ETo, irrigated daily (T1), while the lowest (15.5 t/ha and 16.5 t/ha) were obtained from the treatments with 60% ETo, irrigated every four days (T9). The highest water productivities were obtained from the treatments with 60% ETo, irrigated daily (T7), while the lowest were obtained from the treatments with 100% ETo, irrigated every four days (T3), implying a better yield effect due to light high frequent irrigation than deep low frequent irrigation. The marginal difference in yield due to the marginal difference in water applied in T1 and T7 is 3.7 t/ha. It is concluded that full irrigation produced higher yield than deficit irrigation but with lower crop water productivity.
Keywords: Cucumber yield, water use, water productivity, irrigation depth, irrigation interval
