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Mar 30, 2024Keywords:
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Main Article Content
Irrigation Strategies during Dry Season Cultivation and Urea Micro-Dosing Rate on Growth and Yield of Amaranthus viridis
Abstract
Excessive nitrogen application and water scarcity have become a major challenge to crop production due to climatic changes. The study investigated the effects of dry season irrigation and fertilizer micro-dosing application methods on the height, chlorophyll content and fresh yield of Amaranthus viridis. The field study was conducted during the 2022 and 2023 dry planting seasons of rainforest in southwestern Nigeria. The experimental design was a randomised complete block design with four replicates. The treatments compared two irrigation methods (capillary and manual sprinkler) combined with urea fertilizer rates (0 and 40 kg N/ ha) by fertigation, drilling, spot placement, and broadcasting methods. 40 litres of water were applied at two days intervals. Forty (40) kg/ha urea-N micro-dosing rate significantly improved fresh yield, chlorophyll content and height of Amaranthus viridis. The methods of application did not have a negative effect on the vegetable quality. The Capillary irrigation innovation displayed a capacity that significantly improved the yield of the leafy vegetable during the dry cultivation period. It produced more yield compared to the watering can irrigation method.
