Nodulation, N and P Uptake as Influenced by Parthenium (Parthenium Hysterophorus L.) Densities in Common Bean (Phaseolus Vulgaris L.)

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Year:
2014
Type of Publication:
Article
Keywords:
Nitrogen, Nodules, Parthenium Densities, Phosphorus
Authors:
Woldesenbet, Mitiku
Journal:
IJRAS
Volume:
1
Number:
3
Pages:
177-181
Month:
May
Note:
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. CC BY-NC-SA 4.0 Creative Commons License: https://creativecommons.org/licenses/by-nc-sa/4.0/
Abstract:
A field experiment was carried out at Haramaya University during 2010 cropping season to determine the impact of parthenium on nodulation, N and P uptake by parthenium and common bean. There were nine treatments comprising 0, 3, 6, 9, 12, 15, 18, 21 and 24 parthenium plants m-2grown with common bean. The experiment was laid out in Randomized Complete Block Design with three replications. The result showed that parthenium population significantly influenced nodulation in common bean and N and P uptake by parthenium and common bean. The significantly higher number of total and effective nodules was recorded in common bean grown in the absence of competition than in competition with parthenium. However, nodule dry weight was statistically at par between control, 3 and 6 parthenium plants/ m2 and these treatments had significantly higher nodule dry weight/plant than the other parthenium densities. The N uptake by common bean grains and total aboveground plant was significantly higher in control than in competition with parthenium while no significant difference in N uptake was obtained between control and 3 plants/ m2 of parthenium but both these treatments resulted in higher uptake than the other PARTHENIUM densities. The N uptake by parthenium increased with the increase in density up to 15 plants /m2 and 12 and 15 parthenium plants/ m2removed 85.93 and 91.42 kg N/ha which was significant over other densities. The common bean plant had higher uptake of N than parthenium up to 6 parthenium plants/m2 whereas at higher densities it was lesser than parthenium. Like N, the P uptake by the crop was also adversely affected with increasing parthenium densities. But in contrast, P uptake by parthenium at all its densities was higher than common bean.
Full text: IJRAS_57_Final.pdf

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