Abstract
While pulses are staple food-legumes in Ethiopia, their productivity is low due to low soil fertility. Elite rhizobial strains that significantly increased shoot dry weight and nitrogen (N) contents of common beans and soybeans in greenhouse were selected for two-year field trials to evaluate their effect on yields of the pulses in the field. Each pulse had six treatments, namely four rhizobial inoculants, uninoculated control, and synthetic N fertilizer. In the drought-affected year 2015, inoculated pulses tolerated moisture stress better than non-inoculated controls. Inoculation was conducive to higher or equivalent yields compared to synthetic N fertilizer. At Halaba, bean inoculated with strain HAMBI3562 gave the highest grain yield (1500 ± 81 kg ha−1; mean±SE) while the control yielded only 653 ± 22 kg ha−1. At Boricha, HAMBI3570 gave a grain yield (640 ± 35 kg ha−1) comparable to synthetic N. When rainfall was optimal in 2016, inoculation with HAMBI3562 and HAMBI3570 gave grain yields (around 4300 kg ha−1) equivalent to synthetic N. With soybean, strain HAMBI3513 produced consistently higher or comparable biomass and grain yields compared to synthetic N. In conclusion, HAMBI3562 and HAMBI3570 for beans and HAMBI3513 for soybeans can serve as inoculants for areas having similar conditions as the test areas.
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Claims 9
Claim · model-written summary
Inoculated pulses tolerated drought stress better than uninoculated controls in 2015.
Verbatim
e0“In the drought-affected year 2015, inoculated pulses tolerated moisture stress better than non-inoculated controls.”
Claim · model-written summary
Inoculation gave higher or equivalent yields compared with synthetic nitrogen fertilizer.
Verbatim
e0“Inoculation was conducive to higher or equivalent yields compared to synthetic N fertilizer.”
e1“yields of the pulses”
Claim · model-written summary
At Halaba, HAMBI3562 inoculated bean yielded 1500 ± 81 kg ha−1 versus 653 ± 22 kg ha−1 for the control.
Verbatim
e0“At Halaba, bean inoculated with strain HAMBI3562 gave the highest grain yield (1500 ± 81 kg ha−1; mean±SE) while the control yielded only 653 ± 22 kg ha−1.”
Claim · model-written summary
At Boricha, HAMBI3570 inoculated bean yielded 640 ± 35 kg ha−1, comparable to synthetic nitrogen.
Verbatim
e0“At Boricha, HAMBI3570 gave a grain yield (640 ± 35 kg ha−1) comparable to synthetic N.”
e1“bean inoculated with strain HAMBI3562”
Claim · model-written summary
With optimal rainfall in 2016, HAMBI3562 inoculation gave bean grain yields around 4300 kg ha−1, equivalent to synthetic nitrogen.
Verbatim
e0“When rainfall was optimal in 2016, inoculation with HAMBI3562 and HAMBI3570 gave grain yields (around 4300 kg ha−1) equivalent to synthetic N.”
e1“bean inoculated with strain HAMBI3562”
Claim · model-written summary
With optimal rainfall in 2016, HAMBI3570 inoculation gave bean grain yields around 4300 kg ha−1, equivalent to synthetic nitrogen.
Verbatim
e0“When rainfall was optimal in 2016, inoculation with HAMBI3562 and HAMBI3570 gave grain yields (around 4300 kg ha−1) equivalent to synthetic N.”
e1“bean inoculated with strain HAMBI3562”
Claim · model-written summary
Soybean inoculated with HAMBI3513 had consistently higher or comparable biomass and grain yields than synthetic nitrogen treatment.
- Taxon
- soybean
Glycine maxe0 - Treatment
- strain HAMBI3513e0
- Interactor
- strain HAMBI3513e0symbiont
- Outcome
- biomass and grain yieldse0
- Direction
- higher or comparablee0
- Comparator
- synthetic Ne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With soybean, strain HAMBI3513 produced consistently higher or comparable biomass and grain yields compared to synthetic N.”
Claim · model-written summary
The authors recommend HAMBI3562 and HAMBI3570 as bean inoculants in areas similar to test areas.
Verbatim
e0“HAMBI3562 and HAMBI3570 for beans and HAMBI3513 for soybeans can serve as inoculants for areas having similar conditions as the test areas.”
Claim · model-written summary
The authors recommend HAMBI3513 as a soybean inoculant in areas similar to test areas.
- Taxon
- soybeansGlycine maxe0
- Outcome
- HAMBI3513 for soybeanse0
- Qualifier
- areas having similar conditions as the test arease0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HAMBI3562 and HAMBI3570 for beans and HAMBI3513 for soybeans can serve as inoculants for areas having similar conditions as the test areas.”
The same questions in other papers
inoculation · yield · Phaseolus vulgaris (common bean)Positive and negative results
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