Abstract
Abstract Nitrogen fixation in faba bean ( Vicia faba cv. Mesay) as affected by sulfur (S) fertilization (30 kg S ha –1 ) and inoculation under the semi‐arid conditions of Ethiopia was studied using the 15 N‐isotope dilution method. The effect of faba bean–fixed nitrogen (N) on yield of the subsequent wheat crop ( Triticum aestivum L.) was also assessed. Sulfur fertilization and inoculation significantly ( p < 0.05) affected nodulation at late flowering stage for both 2004 and 2005 cropping seasons. The nodule number and nodule fresh weighs were increased by 53% and 95%, relative to the control. Similarly, both treatments (S fertilization and inoculants) significantly improved biomass and grain yield of faba bean on average by 2.2 and 1.2 Mg ha –1 . This corresponds to 37% and 50% increases, respectively, relative to the control. Total N and S uptake of grains was significantly higher by 59.6 and 3.3 kg ha –1 , which are 76% and 66% increases, respectively. Sulfur and inoculation enhanced the percentage of N derived from the atmosphere in the whole plant of faba bean from 51% to 73%. This corresponds to N 2 fixation varying from 49 to 147 kg N ha –1 . The percentage of N derived from fertilizer (%Ndff) and soil (%Ndfs) of faba bean varied from 4.3% to 2.8 %, and from 45.1% to 24.0%, corresponding to the average values of 5.1 and 47.9 kg N ha –1 . Similarly, the %Ndff and %Ndfs of the reference crop, barley, varied from 8.5 % to 10.8% and from 91.5% to 89.2%, with average N yields of 9.2 and 84.3 kg N ha –1 . Soil N balance after faba bean ranged from 13 to 52 kg N ha –1 . Beneficial effects of faba bean on yield of a wheat crop grown after faba bean were highly significant, increasing the average grain and N yields of this crop by 1.11 Mg ha –1 and 30 kg ha –1 , relative to the yield of wheat grown after the reference crop, barley. Thus, it can be concluded that faba bean can be grown as an alternative crop to fallow, benefiting farmers economically and increasing the soil fertility.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 12
Claim · model-written summary
Sulfur fertilization and inoculation increased faba bean nodule number by 53% relative to the control.
- Taxon
- faba bean
Vicia fabat0 - Material
- Vicia faba cv. Mesaye1
- Treatment
- Sulfur fertilization and inoculatione2
- Interactor
- rhizobialt1symbiont
- Outcome
- nodule numbere3
- Direction
- increasede3
- Value
- 53%e3
- Comparator
- controle3
- Setting
- Ethiopiae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“N2 fixed by faba bean (Vicia faba L.)”
t1“rhizobial inoculation”
e1“Nitrogen fixation in faba bean ( Vicia faba cv. Mesay) as affected by sulfur (S) fertilization (30 kg S ha –1 ) and inoculation under the semi‐arid conditions of Ethiopia was studied using the 15 N‐isotope dilution method”
e2“Sulfur fertilization and inoculation significantly ( p < 0.05) affected nodulation at late flowering stage for both 2004 and 2005 cropping seasons”
e3“The nodule number and nodule fresh weighs were increased by 53% and 95%, relative to the control”
Claim · model-written summary
Sulfur fertilization and inoculation increased faba bean nodule fresh weight by 95% relative to the control.
- Taxon
- faba beanVicia fabat0
- Material
- Vicia faba cv. Mesaye1
- Treatment
- Sulfur fertilization and inoculatione2
- Interactor
- rhizobialt1symbiont
- Outcome
- nodule fresh weighse3
- Direction
- increasede3
- Value
- 95%e3
- Comparator
- controle3
- Setting
- Ethiopiae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“N2 fixed by faba bean (Vicia faba L.)”
t1“rhizobial inoculation”
e1“Nitrogen fixation in faba bean ( Vicia faba cv. Mesay) as affected by sulfur (S) fertilization (30 kg S ha –1 ) and inoculation under the semi‐arid conditions of Ethiopia was studied using the 15 N‐isotope dilution method”
e2“Sulfur fertilization and inoculation significantly ( p < 0.05) affected nodulation at late flowering stage for both 2004 and 2005 cropping seasons”
e3“The nodule number and nodule fresh weighs were increased by 53% and 95%, relative to the control”
Claim · model-written summary
Sulfur fertilization and inoculants improved faba bean biomass by 37% relative to the control.
- Taxon
- faba beanVicia fabat0
- Material
- Vicia faba cv. Mesaye1
- Treatment
- S fertilization and inoculantse4
- Outcome
- biomasse4
- Direction
- improvede4
- Value
- 37%e4
- Qualifier
- 2.2 and 1.2 Mg ha –1e4
- Comparator
- controle4
- Setting
- Ethiopiae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“N2 fixed by faba bean (Vicia faba L.)”
e1“Nitrogen fixation in faba bean ( Vicia faba cv. Mesay) as affected by sulfur (S) fertilization (30 kg S ha –1 ) and inoculation under the semi‐arid conditions of Ethiopia was studied using the 15 N‐isotope dilution method”
e4“Similarly, both treatments (S fertilization and inoculants) significantly improved biomass and grain yield of faba bean on average by 2.2 and 1.2 Mg ha –1 . This corresponds to 37% and 50% increases, respectively, relative to the control”
Claim · model-written summary
Sulfur fertilization and inoculants improved faba bean grain yield by 50% relative to the control.
- Taxon
- faba beanVicia fabat0
- Material
- Vicia faba cv. Mesaye1
- Treatment
- S fertilization and inoculantse4
- Outcome
- grain yielde4
- Direction
- improvede4
- Value
- 50%e4
- Qualifier
- 2.2 and 1.2 Mg ha –1e4
- Comparator
- controle4
- Setting
- Ethiopiae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“N2 fixed by faba bean (Vicia faba L.)”
e1“Nitrogen fixation in faba bean ( Vicia faba cv. Mesay) as affected by sulfur (S) fertilization (30 kg S ha –1 ) and inoculation under the semi‐arid conditions of Ethiopia was studied using the 15 N‐isotope dilution method”
e4“Similarly, both treatments (S fertilization and inoculants) significantly improved biomass and grain yield of faba bean on average by 2.2 and 1.2 Mg ha –1 . This corresponds to 37% and 50% increases, respectively, relative to the control”
Claim · model-written summary
Total N uptake of faba bean grains was 76% higher, at 59.6 kg ha –1 more.
- Taxon
- faba beanVicia fabat0
- Organ / stage
- grainse5
- Outcome
- Total N and S uptake of grainse5
- Direction
- highere5
- Value
- 76%e5
- Qualifier
- 59.6 and 3.3 kg ha –1e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“N2 fixed by faba bean (Vicia faba L.)”
e5“Total N and S uptake of grains was significantly higher by 59.6 and 3.3 kg ha –1 , which are 76% and 66% increases, respectively”
Claim · model-written summary
Total S uptake of faba bean grains was 66% higher, at 3.3 kg ha –1 more.
- Taxon
- faba beanVicia fabat0
- Organ / stage
- grainse5
- Outcome
- Total N and S uptake of grainse5
- Direction
- highere5
- Value
- 66%e5
- Qualifier
- 59.6 and 3.3 kg ha –1e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“N2 fixed by faba bean (Vicia faba L.)”
e5“Total N and S uptake of grains was significantly higher by 59.6 and 3.3 kg ha –1 , which are 76% and 66% increases, respectively”
Claim · model-written summary
Sulfur and inoculation enhanced the percentage of N derived from the atmosphere in whole faba bean plants from 51% to 73%.
- Taxon
- faba beanVicia fabat0
- Organ / stage
- whole plante6
- Treatment
- Sulfur and inoculatione6
- Outcome
- percentage of N derived from the atmospheree6
- Direction
- enhancede6
- Value
- 51% to 73%e6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“N2 fixed by faba bean (Vicia faba L.)”
e6“Sulfur and inoculation enhanced the percentage of N derived from the atmosphere in the whole plant of faba bean from 51% to 73%”
Claim · model-written summary
Faba bean N2 fixation varied from 49 to 147 kg N ha –1.
- Taxon
- faba beanVicia fabat0
- Outcome
- N 2 fixatione7
- Value
- 49 to 147 kg N ha –1e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“N2 fixed by faba bean (Vicia faba L.)”
e7“This corresponds to N 2 fixation varying from 49 to 147 kg N ha –1”
Claim · model-written summary
Faba bean as a preceding crop highly significantly increased the average grain yield of the following wheat by 1.11 Mg ha –1.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- grown after faba beane7
- Outcome
- average graine7
- Direction
- increasinge7
- Value
- 1.11 Mg ha –1e7
- Comparator
- wheat grown after the reference crop, barleye7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat response to N2 fixed by faba bean (Vicia faba L.)”
e7“Beneficial effects of faba bean on yield of a wheat crop grown after faba bean were highly significant, increasing the average grain and N yields of this crop by 1.11 Mg ha –1 and 30 kg ha –1 , relative to the yield of wheat grown after the reference crop, barley”
Claim · model-written summary
Faba bean as a preceding crop highly significantly increased the N yield of the following wheat by 30 kg ha –1.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- grown after faba beane7
- Outcome
- N yieldse7
- Direction
- increasinge7
- Value
- 30 kg ha –1e7
- Comparator
- wheat grown after the reference crop, barleye7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat response to N2 fixed by faba bean (Vicia faba L.)”
e7“Beneficial effects of faba bean on yield of a wheat crop grown after faba bean were highly significant, increasing the average grain and N yields of this crop by 1.11 Mg ha –1 and 30 kg ha –1 , relative to the yield of wheat grown after the reference crop, barley”
Claim · model-written summary
Soil N balance after faba bean ranged from 13 to 52 kg N ha –1.
- Taxon
- faba beanVicia fabat0
- Outcome
- Soil N balance after faba beane6
- Value
- 13 to 52 kg N ha –1e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“N2 fixed by faba bean (Vicia faba L.)”
e6“Soil N balance after faba bean ranged from 13 to 52 kg N ha –1”
Claim · model-written summary
Faba bean can be grown as an alternative crop to fallow to benefit farmers and increase soil fertility.
- Taxon
- faba beanVicia fabat0
- Outcome
- alternative crop to fallowe7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“N2 fixed by faba bean (Vicia faba L.)”
e7“Thus, it can be concluded that faba bean can be grown as an alternative crop to fallow, benefiting farmers economically and increasing the soil fertility”
The same questions in other papers
sulfur atom · yield · Vicia faba (faba bean)Results differ
7 papers in the same direction as this paper · 2 in the opposite direction
- positive
- no effect
- negative
6 papers more in this group
See all 10 papers →sulfur atom · growth · Vicia faba (faba bean)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
1 paper more in this group
See all 5 papers →Vicia faba · yield · Triticum aestivum (wheat)Positive and negative results
16 papers in the same direction as this paper · 2 in the opposite direction
- positive
- negative
- negative
15 papers more in this group
See all 19 papers →sulfur atom · symbiosis · Vicia faba (faba bean)Results agree
1 paper in the same direction as this paper
- positive
inoculation · symbiosis · Vicia faba (faba bean)Results differ
40 papers in the same direction as this paper · 8 in the opposite direction
- positive
- no effect
- negative
45 papers more in this group
See all 49 papers →inoculation · yield · Vicia faba (faba bean)Results differ
87 papers in the same direction as this paper · 10 in the opposite direction
- no effect
- positive
- positive
94 papers more in this group
See all 98 papers →fertilization · symbiosis · Vicia faba (faba bean)Positive and negative results
21 papers in the same direction as this paper · 5 in the opposite direction
- positive
- negative
- no effect
23 papers more in this group
See all 27 papers →inoculation · growth · Vicia faba (faba bean)Positive and negative results
64 papers in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- negative
65 papers more in this group
See all 69 papers →8 of 10 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.