Review of Deficit Irrigation and Nutrient Use Strategies for Optimal Crop Yields
Keywords:
Deficit Irrigation,, Evapotranspiration,, Field Capacity,, Matric Potential,, Nutrient UseAbstract
Optimal soil moisture ionizes the nutrient fertilizer into a form extractable by plant roots and minimizes drainage. Deficit irrigated crops abstract moisture at critical levels below field capacity sufficient for production. Current review of the existing literature has shown that optimal yields and profits are attained by balancing available water and nutrient application. It was further shown that reduction of water applied is justified when it results in yield reduction but significant saving is achieved in reduction of operation costs. A case study of Eldume irrigation scheme showed that irrigation water requirement is never attained and deficit irrigation was the only option.
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