Abstract
Abstract The relative distribution of 22 mineral elements in the roots, nodules and shoots of the soybean ( Glycine max L. Merr. cv. Tsurumusume) at R1 (beginning of the flowering stage) and R7 (beginning of the mature stage) was investigated in response to ammonium and manure N treatment. Plants receiving only atmospheric nitrogen served as the negative control. The addition of ammonium sulfate to the soil caused soil acidification, induced Al and Mn toxicities, and significantly reduced the biomass production in roots and nodules. Ca, Mg, Fe, Mn, Cu, and Zn concentrations were significantly higher in shoots, and those of Mo and Co higher in nodules. The addition of manure to the soil significantly enhanced the levels of Sr, Ba, Cr, and Cd in shoots, whereas the concentration of Cs was decreased at R7. Moreover, when the soybean developed from R1 to R7, the levels of essential elements in nodules decreased, whereas those of nonessential elements increased, irrespective of the nitrogen source. Furthermore, the variation in the concentrations of many elements was not consistent for nodules and roots when soybean developed from R1 to R7. The variation of Mn, Zn, B, and Al concentrations was independent of N treatments. However, Ca, Fe, Cu, Mo, and Se levels were affected strongly by N treatments. This study is the first to document the dynamic variation of the soybean ionome in nodules, roots, and shoots from vegetative to reproductive stage of soybean.
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Claims 11
Claim · model-written summary
Ammonium sulfate acidified soil and induced Al and Mn toxicities.
- Taxon
- soybean
Glycine maxt0 - Treatment
- ammonium sulfatee0
- Outcome
- soil acidification, induced Al and Mn toxicitiese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The addition of ammonium sulfate to the soil caused soil acidification, induced Al and Mn toxicities”
t0“soybean”
Claim · model-written summary
Ammonium sulfate significantly reduced root and nodule biomass.
- Taxon
- soybean
Glycine maxt0 - Treatment
- ammonium sulfatee1
- Outcome
- biomass production in roots and nodulese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“significantly reduced the biomass production in roots and nodules”
t0“soybean”
e1“The addition of ammonium sulfate to the soil”
Claim · model-written summary
Ca, Mg, Fe, Mn, Cu, and Zn concentrations were higher in shoots.
- Taxon
- soybean
Glycine maxt0 - Organ / stage
- shootse0
- Outcome
- Ca, Mg, Fe, Mn, Cu, and Zn concentrationse0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Ca, Mg, Fe, Mn, Cu, and Zn concentrations were significantly higher in shoots”
t0“soybean”
Claim · model-written summary
Mo and Co concentrations were higher in nodules.
- Taxon
- soybean
Glycine maxt0 - Organ / stage
- nodulese0
- Outcome
- Mo and Coe0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“those of Mo and Co higher in nodules”
t0“soybean”
Claim · model-written summary
Manure increased shoot Sr, Ba, Cr, and Cd levels.
- Taxon
- soybean
Glycine maxt0 - Treatment
- manuree0
- Outcome
- levels of Sr, Ba, Cr, and Cd in shootse0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The addition of manure to the soil significantly enhanced the levels of Sr, Ba, Cr, and Cd in shoots”
t0“soybean”
Claim · model-written summary
Manure decreased shoot Cs concentration at R7.
- Taxon
- soybean
Glycine maxt0 - Organ / stage
- R7e0
- Treatment
- manuree1
- Outcome
- concentration of Cse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“whereas the concentration of Cs was decreased at R7”
t0“soybean”
e1“The addition of manure to the soil”
Claim · model-written summary
Essential element levels in nodules decreased from R1 to R7 regardless of nitrogen source.
- Taxon
- soybean
Glycine maxe0 - Outcome
- levels of essential elements in nodulese0
- Direction
- decreasede0
- Qualifier
- from R1 to R7e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“when the soybean developed from R1 to R7, the levels of essential elements in nodules decreased”
Claim · model-written summary
Nonessential element levels in nodules increased from R1 to R7 regardless of nitrogen source.
- Taxon
- soybean
Glycine maxt0 - Outcome
- nonessential elementse0
- Direction
- increasede0
- Qualifier
- irrespective of the nitrogen sourcee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“whereas those of nonessential elements increased, irrespective of the nitrogen source”
t0“soybean”
Claim · model-written summary
Many element concentrations varied inconsistently between nodules and roots from R1 to R7.
- Taxon
- soybean
Glycine maxe0 - Organ / stage
- nodules and rootse0
- Outcome
- concentrations of many elementse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“variation in the concentrations of many elements was not consistent for nodules and roots when soybean developed from R1 to R7”
Claim · model-written summary
Mn, Zn, B, and Al variation was independent of nitrogen treatment.
- Taxon
- soybean
Glycine maxt0 - Treatment
- N treatmentse0
- Outcome
- variation of Mn, Zn, B, and Al concentrationse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The variation of Mn, Zn, B, and Al concentrations was independent of N treatments”
t0“soybean”
Claim · model-written summary
Ca, Fe, Cu, Mo, and Se levels were strongly affected by nitrogen treatments.
- Taxon
- soybean
Glycine maxt0 - Treatment
- N treatmentse0
- Outcome
- Ca, Fe, Cu, Mo, and Se levelse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Ca, Fe, Cu, Mo, and Se levels were affected strongly by N treatments”
t0“soybean”
The same questions in other papers
ammonium sulfate · symbiosis · Glycine max (soybean)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
ammonium sulfate · nutrient: content · Glycine max (soybean)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
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.