Abstract:
Use of controlled irrigation in vegetable production is considered a viable option for optimizing input use and productivity. %is
study aimed at assessing the effects of different drip irrigation schedules on productivity and profitability of three cabbage varieties
grown in humic nitisols of Embu County. %e study was laid out in a split plot design arranged in Randomized Complete Block
Design (RCBD). %e drip irrigation schedules were allocated the main plots and crop varieties allocated the subplot treatments.
Cabbage test varieties investigated were Riana F1 (V1), Gloria F1 (V2), and Triperio F1 (V3). Irrigation schedule one (S1) involved
application of irrigation water twice a week, S2 once a week, and S3 once every two weeks. Soil water content was determined
before irrigation and then replenished to field capacity using a known volume of water. %e data were subjected to Analysis of
Variance using SAS version 9.4. Mean separation was done using Fisher’s least significant difference at 95% level of confidence.
%e findings revealed that the yields and net revenue obtained from different cabbage varieties were not significantly different.
However, the cabbage yields and subsequent revenue increased as irrigation frequency increased. %e study recommends
adoption of irrigation schedule S1 whose productivity remained high despite the high cost of production.
