Abstract
The effects of phosphorus fertilizer and weed control on yield and major yield components of faba bean (Vicia faba L.) were studied on Nitisols of Ethiopian highlands. Factorial combinations of four levels of phosphorus fertilizer (0, 10, 20 and 30 kg P ha-1) as triple super phosphate (TSP) and two levels of weeding (W1 = no weeding and W2 = hand weeding once six weeks after crop emergence) were laid out in randomized complete block design with three replications. Results indicated that highly significant positive responses of number of pods per plant, total biomass and seed yields of faba bean to phosphorus fertilizer and weeding treatments were noted. Phosphorus level × weed control interaction over three years significantly (P ≤ 0.05) affected faba bean seed yield at Rob Gebeya but not at Welmera. Phosphorus application at the rates of 10, 20 and 30 kg P ha-1 resulted in mean seed yield increases compared to the control of 20, 41 and 53%, respectively on the average of locations; 13, 33 and 51%, respectively at Welmera, and 26, 48 and 55%, respectively at Rob Gebeya.Weeding once increased mean seed yields of faba bean by 25% on the average (35 and 17% at Welmera and Rob Gebeya, respectively) compared to unweeded check. Seed yield was positively correlated with total biomass and number of pods per plant (r = 0.95*** and 0.75***, respectively) at Welmera, and (r = 0.94*** and 0.55**, respectively) at Rob Gebeya. The results of economic analysis indicated that the highest marginal rate of return was obtained from weeding once six weeks after crop emergence and application of 20 kg P ha-1, which is economically the most feasible alternative on Nitisols of central Ethiopian highlands.
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Claims 20
Claim · model-written summary
Phosphorus fertilizer increased pod number, biomass and seed yield significantly.
- Taxon
- faba bean
Vicia fabae0 - Treatment
- phosphorus fertilizere0
- Outcome
- number of pods per plant, total biomass and seed yieldse0
- Direction
- positive responsese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highly significant positive responses of number of pods per plant, total biomass and seed yields of faba bean to phosphorus fertilizer”
Claim · model-written summary
Weeding increased pod number, biomass and seed yield significantly.
- Taxon
- faba beanVicia fabae0
- Treatment
- weeding treatmentse0
- Outcome
- number of pods per plant, total biomass and seed yieldse0
- Direction
- positive responsese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highly significant positive responses of number of pods per plant, total biomass and seed yields of faba bean to phosphorus fertilizer and weeding treatments”
Claim · model-written summary
Phosphorus and weed control interacted significantly for seed yield at Rob Gebeya.
- Taxon
- faba beanVicia fabae0
- Treatment
- Phosphorus level × weed controle0
- Outcome
- seed yielde0
- Setting
- Rob Gebeyae0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus level × weed control interaction over three years significantly (P ≤ 0.05) affected faba bean seed yield at Rob Gebeya but not at Welmera”
Claim · model-written summary
The phosphorus by weed control interaction was not significant for seed yield at Welmera.
- Taxon
- faba beanVicia fabae0
- Treatment
- Phosphorus level × weed controle0
- Outcome
- seed yielde0
- Setting
- Welmerae0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus level × weed control interaction over three years significantly (P ≤ 0.05) affected faba bean seed yield at Rob Gebeya but not at Welmera”
Claim · model-written summary
10 phosphorus increased mean seed yield by 20% across locations versus control.
- Taxon
- faba beanVicia fabat0
- Treatment
- 10e0
- Outcome
- mean seed yielde0
- Direction
- increasese0
- Value
- 20e0
- Comparator
- the controle0
- Setting
- locationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus application at the rates of 10, 20 and 30 kg P ha-1 resulted in mean seed yield increases compared to the control of 20, 41 and 53%, respectively on the average of locations”
t0“Faba Bean”
Claim · model-written summary
20 phosphorus increased mean seed yield by 41% across locations versus control.
- Taxon
- faba beanVicia fabat0
- Treatment
- 20e0
- Outcome
- mean seed yielde0
- Direction
- increasese0
- Value
- 41e0
- Comparator
- the controle0
- Setting
- locationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus application at the rates of 10, 20 and 30 kg P ha-1 resulted in mean seed yield increases compared to the control of 20, 41 and 53%, respectively on the average of locations”
t0“Faba Bean”
Claim · model-written summary
30 kg P ha-1 phosphorus increased mean seed yield by 53% across locations versus control.
- Taxon
- faba beanVicia fabat0
- Treatment
- 30 kg P ha-1e0
- Outcome
- mean seed yielde0
- Direction
- increasese0
- Value
- 53%e0
- Comparator
- the controle0
- Setting
- locationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus application at the rates of 10, 20 and 30 kg P ha-1 resulted in mean seed yield increases compared to the control of 20, 41 and 53%, respectively on the average of locations”
t0“Faba Bean”
Claim · model-written summary
10 phosphorus increased seed yield by 13% at Welmera versus control.
- Taxon
- Faba BeanVicia fabat0
- Treatment
- 10e0
- Outcome
- seed yielde0
- Direction
- increasese0
- Value
- 13e0
- Comparator
- the controle0
- Setting
- Welmerae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus application at the rates of 10, 20 and 30 kg P ha-1 resulted in mean seed yield increases compared to the control of 20, 41 and 53%, respectively on the average of locations; 13, 33 and 51%, respectively at Welmera”
t0“Faba Bean”
Claim · model-written summary
20 phosphorus increased seed yield by 33% at Welmera versus control.
- Taxon
- Faba BeanVicia fabat0
- Treatment
- 20e0
- Outcome
- seed yielde0
- Direction
- increasese0
- Value
- 33e0
- Comparator
- the controle0
- Setting
- Welmerae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus application at the rates of 10, 20 and 30 kg P ha-1 resulted in mean seed yield increases compared to the control of 20, 41 and 53%, respectively on the average of locations; 13, 33 and 51%, respectively at Welmera”
t0“Faba Bean”
Claim · model-written summary
30 kg P ha-1 phosphorus increased seed yield by 51% at Welmera versus control.
- Taxon
- Faba BeanVicia fabat0
- Treatment
- 30 kg P ha-1e0
- Outcome
- seed yielde0
- Direction
- increasese0
- Value
- 51%e0
- Comparator
- the controle0
- Setting
- Welmerae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus application at the rates of 10, 20 and 30 kg P ha-1 resulted in mean seed yield increases compared to the control of 20, 41 and 53%, respectively on the average of locations; 13, 33 and 51%, respectively at Welmera”
t0“Faba Bean”
Claim · model-written summary
10 phosphorus increased seed yield by 26% at Rob Gebeya versus control.
- Taxon
- Faba BeanVicia fabat0
- Treatment
- 10e0
- Outcome
- seed yielde0
- Direction
- increasese0
- Value
- 26e0
- Comparator
- the controle0
- Setting
- Rob Gebeyae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus application at the rates of 10, 20 and 30 kg P ha-1 resulted in mean seed yield increases compared to the control of 20, 41 and 53%, respectively on the average of locations; 13, 33 and 51%, respectively at Welmera, and 26, 48 and 55%, respectively at Rob Gebeya”
t0“Faba Bean”
Claim · model-written summary
20 phosphorus increased seed yield by 48% at Rob Gebeya versus control.
- Taxon
- Faba BeanVicia fabat0
- Treatment
- 20e0
- Outcome
- seed yielde0
- Direction
- increasese0
- Value
- 48e0
- Comparator
- the controle0
- Setting
- Rob Gebeyae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus application at the rates of 10, 20 and 30 kg P ha-1 resulted in mean seed yield increases compared to the control of 20, 41 and 53%, respectively on the average of locations; 13, 33 and 51%, respectively at Welmera, and 26, 48 and 55%, respectively at Rob Gebeya”
t0“Faba Bean”
Claim · model-written summary
30 kg P ha-1 phosphorus increased seed yield by 55% at Rob Gebeya versus control.
- Taxon
- Faba BeanVicia fabat0
- Treatment
- 30 kg P ha-1e0
- Outcome
- seed yielde0
- Direction
- increasese0
- Value
- 55%e0
- Comparator
- the controle0
- Setting
- Rob Gebeyae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus application at the rates of 10, 20 and 30 kg P ha-1 resulted in mean seed yield increases compared to the control of 20, 41 and 53%, respectively on the average of locations; 13, 33 and 51%, respectively at Welmera, and 26, 48 and 55%, respectively at Rob Gebeya”
t0“Faba Bean”
Claim · model-written summary
One weeding increased mean faba bean seed yield by 25% on average.
- Taxon
- faba beanVicia fabae0
- Treatment
- Weeding oncee0
- Outcome
- mean seed yieldse0
- Direction
- increasede0
- Value
- 25%e0
- Comparator
- unweeded checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weeding once increased mean seed yields of faba bean by 25% on the average (35 and 17% at Welmera and Rob Gebeya, respectively) compared to unweeded check”
Claim · model-written summary
One weeding increased faba bean seed yield by 35% at Welmera.
- Taxon
- faba beanVicia fabae0
- Treatment
- Weeding oncee0
- Outcome
- mean seed yieldse0
- Direction
- increasede0
- Value
- 35e0
- Comparator
- unweeded checke0
- Setting
- Welmerae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weeding once increased mean seed yields of faba bean by 25% on the average (35 and 17% at Welmera and Rob Gebeya, respectively) compared to unweeded check”
Claim · model-written summary
One weeding increased faba bean seed yield by 17% at Rob Gebeya.
- Taxon
- faba beanVicia fabae0
- Treatment
- Weeding oncee0
- Outcome
- mean seed yieldse0
- Direction
- increasede0
- Value
- 17%e0
- Comparator
- unweeded checke0
- Setting
- Rob Gebeyae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weeding once increased mean seed yields of faba bean by 25% on the average (35 and 17% at Welmera and Rob Gebeya, respectively) compared to unweeded check”
Claim · model-written summary
Seed yield correlated positively with biomass at Welmera (r = 0.95***).
- Taxon
- faba beanVicia fabat0
- Outcome
- Seed yielde0
- Direction
- positively correlatede0
- Value
- r = 0.95***e0
- Comparator
- total biomasse0
- Setting
- Welmerae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed yield was positively correlated with total biomass and number of pods per plant (r = 0.95*** and 0.75***, respectively) at Welmera”
t0“Faba Bean”
Claim · model-written summary
Seed yield correlated positively with pod number at Welmera (r = 0.75***).
- Taxon
- Faba BeanVicia fabat0
- Outcome
- Seed yielde0
- Direction
- positively correlatede0
- Value
- 0.75***e0
- Comparator
- number of pods per plante0
- Setting
- Welmerae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed yield was positively correlated with total biomass and number of pods per plant (r = 0.95*** and 0.75***, respectively) at Welmera”
t0“Faba Bean”
Claim · model-written summary
Seed yield correlated positively with biomass and pod number at Rob Gebeya.
- Taxon
- Faba BeanVicia fabat0
- Outcome
- Seed yielde0
- Direction
- positively correlatede0
- Value
- r = 0.94*** and 0.55**e0
- Comparator
- total biomass and number of pods per plante0
- Setting
- Rob Gebeyae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed yield was positively correlated with total biomass and number of pods per plant (r = 0.95*** and 0.75***, respectively) at Welmera, and (r = 0.94*** and 0.55**, respectively) at Rob Gebeya”
t0“Faba Bean”
Claim · model-written summary
Weeding once at six weeks with 20 kg P ha-1 gave the highest marginal return and was deemed most feasible.
- Taxon
- Faba BeanVicia fabat0
- Outcome
- weeding once six weeks after crop emergence and application of 20 kg P ha-1e0
- Setting
- central Ethiopian highlandse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest marginal rate of return was obtained from weeding once six weeks after crop emergence and application of 20 kg P ha-1, which is economically the most feasible alternative on Nitisols of central Ethiopian highlands”
t0“Faba Bean”
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