Effect Of Irrigation Frequency And NPK Level
On Yield Efficiency, Resource Use And Harvest
Index Of Indigenous Wild Cucumber
Cucumis Africanus
Author(s)
R. J. Nkgapele & M. S. Mphosi
Abstract
In South African traditional medicine the roots, stems, leaves or fruit of wild
cucumber, Cucumis africanus, are used as an emetic, purgative or enema for
various ailments. The fresh young leaves are eaten as a pot herb by many rural
people. A study was conducted to show the effects of irrigation frequency and
NPK fertilizer application rate on leaf yield characters, harvest index and
resource use efficiencies of C. africanus. The experiment was laid out in a splitplot
design arrangement and replicated three times. Three irrigation frequencies,
namely, 2, 4 and 6 days, were assigned as main plots and Nitrogen, Phosphorus
and Potassium (NPK) application rates of 0 Kg NPK ha-1, 60-40-20 kg NPK ha-1,
120-80-40 kg NPK ha-1 and 180-120-60 kg NPK ha-1 were sub-plots. EYR,
YER, AHI and SHI were significantly (P˂ 0.05) higher in the intermediate
treatment of four day irrigation frequency and 120-80-60 kg NPK ha-1, while
WUE and NUE were pronounced in the six day irrigation frequency and 180-
120-60 kg NPK ha-1. WUE was significantly (P˂ 0.05) affected by both
irrigation frequency and the interaction between irrigation frequency and NPK
application rate, while NUE responded to NPK level only.
Keywords: edible yield rate, yield efficiency rate, harvest index, water use
efficiency.
Keywords
edible yield rate, yield efficiency rate, harvest index, water use
efficiency.
Related Book
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