Effects of planting density and farm yard manure on the growth and yield of carrot (Daucus carota L) in a Forest-Savanna Transition Zone of Edo State, Nigeria
Omoregie A. Uhunomwan, Umeri Clifford
, Nwachukwu Chidi Maurice
Abstract: A field study was conducted to investigate the impact of planting density and farmyard manure on the growth and yield of carrots (Daucus carota L.) in a forest-savanna transition zone of Edo State, Nigeria. The factors were density (30x10, 30x20, 40x10, and 40x20 cm) and farmyard manure (0 and 5 t/ha). The treatments were laid out in a 2x4 factorial scheme fitted into a randomized complete block design (RCBD) to give eight (8) treatment combinations and replicated three times. The data obtained were plant height (cm), Number of leaves/plant, and stem girth. Length of root (cm), weight of roots/plant (g), and root yield (/ha) were also determined. Generally, planting density and farmyard manure did not significantly influence the vegetative parameters measured. Carrots treated with 5 t/ha at a spacing of 40x20 cm had the highest plant height (44.30 cm) and stem girth (2.24 cm), while those at 40x10 and 30x10 cm had the lowest values of 38.53cm and 1.38cm, respectively. The highest number of leaves/plant (14.77) was obtained with 5/ha FYM at 40×20 cm, while the unfertilized crops at 40×20 cm yielded the least, at 10.90 cm. Farmyard manure application and planting density had no significant effect on the yield components of carrots. However, crops treated with 5 t/ha FYM at 30 x 20 cm had the longest roots, while unfertilized plants at 30 x 10 cm had the shortest. Density and farmyard manure significantly affected the root yield of carrots. The application of 5t/ha FYM at 40x10 cm produced the highest root yield (14.45 t/ha), while the unfertilized treatment at 30x10 cm gave the least (5.33 t/ha). Sowing of carrots at 40x10, fertilized with 5t/h FYM, is recommended for carrot production in this locality.
Keywords: clay; organic carbon; phosphorus; plant density; potassium; silt
Citation: Omoregie, A. U., Umeri, C. & Nwachukwu, C. M. (2025). Effects of planting density and farm yard manure on the growth and yield of carrot (Daucus carota L) in a Forest-Savanna Transition Zone of Edo State, Nigeria. Bulg. J. Agric. Sci., 31(6), 1111–1118
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| Date published: 2025-12-16
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