Claim · model-written summary
Adequate combined nitrogen supply in addition to nodule-fixed nitrogen is suggested as necessary for high soybean yield.
- Taxon
- soybean
Glycine maxe1 - Treatment
- adequate supply of combined nitrogene4
- Outcome
- high yielde4
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“Under sterilized-controlled conditions, soybean plant was grown with nitrate (N), Rhizobium inoculation (R), or nitrate and Rhizobium inoculation (N+R)”
e4“It was suggested that adequate supply of combined nitrogen in addition to nodule fixed nitrogen was necessary to get high yield”
Title
Raafat K. Rabie; Kikuo Kumazawa Soil Science & Plant Nutrition 1979. doi:10.1080/00380768.1979.10433189
Other claims from this paper (11)
- Intervention effect Nonnodulated soybean plants grown with nitrate accumulated more dry matter than plants given nitrate and Rhizobium (N+R).
- Intervention effect At pod filling under natural light, plants given nitrate and Rhizobium (N+R) had higher dry matter than nonnodulated N plants.
- Intervention effect Rhizobium-inoculated (R) plants had the lowest dry matter accumulation.
- Intervention effect Rhizobium-inoculated (R) plants showed the earliest senescence.
- Association Nodule size, rather than nodule number, was a good indicator of nitrogen fixing activity in soybean.
- Intervention effect Nitrate suppressed nodule size and specific activity in soybean.
- Observation Specific respiratory activity of nodules was up to three times that of roots in soybean.
- Intervention effect Rhizobium-inoculated (R) soybean plants had the lowest seed yield.
- Intervention effect Nitrate-grown (N) soybean plants had the highest seed yield.
- Intervention effect Plants given nitrate and Rhizobium (N+R) had the highest pod number per plant.
- Intervention effect Rhizobium-inoculated (R) soybean plants had almost the lowest yield components.