Abstract
Poor agronomic practices, such as inadequate plant density, can result in suboptimal carrot (Daucus carota L.) yield and quality in some regions. In 2020, a field experiment was conducted under irrigation conditions in Gerado, South Wollo administrative zone, Ethiopia, using the Nantes variety as a test crop, to investigate the impact of inter-row and intra-row spacing on carrot yield. The treatments involved three inter-row (row) spacing levels (10, 15, and 20 cm) and three intra-row (plant) spacing levels (5, 10, and 15 cm) in a randomized complete block design with three replications. Row and plant spacing significantly affected (P<0.05) total yield, plant height, leaf fresh weight, root length, root diameter, and root fresh weight. The highest marketable yield (490.4 q ha-1) was achieved with a plant density of 20 x 5 cm. In contrast, the highest unmarketable yield (36.3 q ha-1) was obtained with a spacing of 20 x 15 cm. Hence, a plant density of 20 x 5 cm is recommended for optimal marketable carrot yield in the study region and similar agroecologies, although further research across multiple locations and seasons is necessary to validate the results.
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