Academic Research Journal of
Agricultural Science and Research
Academic Research Journal of Agricultural Science and Research
Vol. 4(3), pp. 66-75. March, 2016.
Full Length Research
Influence of Weeding Frequency and Pigeonpea (Cajanus_Cajan L. Millsp) Population Density on Growth, Yield and Yield Components of Maize-Pigeon_Pea Intercropping
Fitsum Merkeb1*, Demelash Kefale (PhD)2 and Tenaw Werkayehu (PhD)3
1Ethiopian Institute of Agricultural Research, Pawe Research Center, Tel. +251585500270, Fax +251585500336
2Hawassa University College of Agriculture, Department of Plant science, Hawassa, Ethiopia.
3Southern Agricultural Research Institute, Hawassa Agricultural Research Center, Hawassa, Ethiopia.
*Corresponding author: firstname.lastname@example.org
Accepted 30 March 2016
A field experiment was conducted to evaluate the influence of weeding frequency and pigeon_pea population density on the performance and productivity of maize-pigeon_pea intercropping at Hawassa. Treatment combinations consisting of two weeding frequency and three pigeon_pea population densities intercropped with maize and sole crops of maize and pigeon_pea were tested in randomized complete block design (RCBD) with three replications. The results indicated that increase in weeding frequency to twice caused 83.6% reduction in weed biomass as compared to weeding only once. On the other hand increasing the pigeon_pea population density to 187,000 and 250,000 plants ha-1 decreased weed biomass by 34.6 and 23.8% respectively. Growth parameters and yield components were also significantly influenced by weeding frequency rather than population density. Pigeon_pealeaf area index and grain yield were significantly affected by all the treatments. Significantly higher grain yield (4.17t/ ha) of maize and (0.80t/ha) of pigeon_pea were obtained from weeding twice. The highest grain yield was obtained from the highest pigeon_pea population density 250,000plants ha-1. Land use efficiency was increased by weeding frequency. The highest total LER (1.26) was obtained from weeding twice. Total LER of 1.24 was recorded from pigeon_pea plant population of 250,000 plants ha-1.
Key word: Maize, pigeonpea, LER, weeding frequency, plant density
How to cite this article: Merkeb F, Kefale D, Werkayehu T (2016). Influence of Weeding Frequency and Pigeonpea (Cajanus_Cajan L. Millsp) Population Density on Growth, Yield and Yield Components of Maize-Pigeon_Pea Intercropping. Acad. Res. J. Agri. Sci. Res. 4(3): 66-75.