Abstract
Biological fixation of atmospheric nitrogen by legumes is a known way to recycle nitrogen into a plant-available form. The efficiency of nitrogen fixation depends on the legume genotype and requires a host-specific Rhizobia strain for nodule formation and yield enhancement. A field experiment was designed to evaluate the performance of Rhizobium strains on the yield and yield components of faba bean under rainfed conditions during two consecutive main growing seasons (2019 and 2020). Experiments consisted of a control, 121 kg NPS ha-1, FB 04, FB 1018 and FB 1035, each strain treated separately with 60 kg ha-1 nitrogen, phosphorus and sulfer (NPS) and Triple superphosphate (TSP) and placed in a randomized complete block design with three replications. Rhizobium inoculation showed a highly significant (p ≤ 0.05) effect on yield and yield attributes compared to un-inoculated (negative control) treatment. Over the years, the results showed that the inoculated plants gave a significant increase (p ≤ 0.05) in nodule number and a benefit in grain yield compared to the un-inoculated plants (negative control). Among inoculated treatments numerically, the highest yield (5.87 t ha-1) was recorded with FB 1018 inoculated together with 60 kg ha-1 TSP compared to those without inoculation (absolute control) which gave 2.48 t ha-1. All Rhizobium inoculants for faba bean showed better nodule formation, leading to increased yield, and it is recommended that farmers in the study area and similar agro-ecologies adopt this technology.
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Claims 7
Claim · model-written summary
Rhizobium inoculation had a highly significant effect on yield and yield attributes of faba bean compared with un-inoculated plants.
- Taxon
- faba bean
Vicia fabae0 - Treatment
- Rhizobium inoculatione1
- Outcome
- yield and yield attributese1
- Comparator
- un-inoculated (negative control) treatmente1
- Setting
- rainfed conditionse0
RhizobiumNot reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was designed to evaluate the performance of Rhizobium strains on the yield and yield components of faba bean under rainfed conditions”
e1“Rhizobium inoculation showed a highly significant (p ≤ 0.05) effect on yield and yield attributes compared to un-inoculated (negative control) treatment”
Claim · model-written summary
Rhizobium inoculation significantly increased nodule number in faba bean compared with un-inoculated plants.
- Taxon
- faba beanVicia fabae0
- Treatment
- Rhizobium inoculatione1
- Outcome
- nodule numbere2
- Direction
- increasee2
- Comparator
- un-inoculated plantse3
- Setting
- rainfed conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was designed to evaluate the performance of Rhizobium strains on the yield and yield components of faba bean under rainfed conditions”
e1“Rhizobium inoculation showed a highly significant (p ≤ 0.05) effect on yield and yield attributes compared to un-inoculated (negative control) treatment”
e2“the inoculated plants gave a significant increase (p ≤ 0.05) in nodule number”
e3“a benefit in grain yield compared to the un-inoculated plants (negative control)”
Claim · model-written summary
Rhizobium inoculation gave a benefit in grain yield of faba bean compared with un-inoculated plants.
- Taxon
- faba beanVicia fabae0
- Treatment
- Rhizobium inoculatione1
- Outcome
- grain yielde3
- Direction
- increaseinferrede3
- Comparator
- un-inoculated plantse3
- Setting
- rainfed conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was designed to evaluate the performance of Rhizobium strains on the yield and yield components of faba bean under rainfed conditions”
e1“Rhizobium inoculation showed a highly significant (p ≤ 0.05) effect on yield and yield attributes compared to un-inoculated (negative control) treatment”
e3“a benefit in grain yield compared to the un-inoculated plants (negative control)”
Claim · model-written summary
FB 1018 inoculated together with 60 kg ha-1 TSP gave the highest faba bean yield of 5.87 t ha-1, against 2.48 t ha-1 without inoculation.
- Taxon
- faba beanVicia fabae0
- Treatment
- FB 1018 inoculated together with 60 kg ha-1 TSPe4
- Interactor
- FB 1018e4symbiont
- Outcome
- yielde4
- Direction
- higheste4
- Value
- 5.87 t ha-1e4
- Qualifier
- 2.48 t ha-1e4
- Comparator
- those without inoculation (absolute control)e4
- Setting
- rainfed conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was designed to evaluate the performance of Rhizobium strains on the yield and yield components of faba bean under rainfed conditions”
e4“the highest yield (5.87 t ha-1) was recorded with FB 1018 inoculated together with 60 kg ha-1 TSP compared to those without inoculation (absolute control) which gave 2.48 t ha-1”
Claim · model-written summary
Rhizobium inoculants gave better nodule formation in faba bean.
- Taxon
- faba beanVicia fabae5
- Treatment
- Rhizobium inoculantse5
- Outcome
- nodule formatione5
- Direction
- bettere5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“All Rhizobium inoculants for faba bean showed better nodule formation, leading to increased yield”
Claim · model-written summary
Rhizobium inoculants increased faba bean yield.
- Taxon
- faba beanVicia fabae5
- Treatment
- Rhizobium inoculantse5
- Outcome
- yielde6
- Direction
- increasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“All Rhizobium inoculants for faba bean showed better nodule formation, leading to increased yield”
e6“leading to increased yield”
Claim · model-written summary
Farmers in the study area and similar agro-ecologies should adopt the Rhizobium inoculation technology for faba bean.
- Taxon
- faba beanVicia fabae5
- Outcome
- adopt this technologye7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“All Rhizobium inoculants for faba bean showed better nodule formation, leading to increased yield”
e7“it is recommended that farmers in the study area and similar agro-ecologies adopt this technology”
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See all 68 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.