Abstract
Phosphorus (P) is essential macronutrient for soybean [Glycine max (L.) Merr.] growth and function. The objective of this study was to determine effect of phosphorus nutrition (including phosphorus nutrition level and interruption of phosphorus supply) on nitrogen accumulation, nodule nitrogen fixation and yield of soybean plants by 15N labeling with sand culture. The results showed that they all presented a single peak curve with improvement of phosphorus nutrition level, when phosphorus concentration of nutrient solution was about 31 mg/L, they all reached the maximum and effect of phosphorus nutrition level on nodule nitrogen fixation was lower than that on yield formation level. Interruption of phosphorus supply during soybean growth period, nitrogen accumulation and nodule nitrogen fixation were seriously inhibited, and yield was decreased significantly when interruption of phosphorus supply during V3-R1 and R1-R5 period, while interruption of phosphorus supply during R5-R7 period had no significant effect on nitrogen accumulation, nodule nitrogen fixation and yield. So soybean nitrogen metabolism and yield were sensitive to phosphorus nutrition in the V3-R5 period, those were not sensitive to phosphorus nutrition after R5 period.
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Claims 9
Claim · model-written summary
Nitrogen accumulation peaked at about 31 mg/L phosphorus.
Not reportedTaxonComparator
Verbatim
e0“The objective of this study was to determine effect of phosphorus nutrition (including phosphorus nutrition level and interruption of phosphorus supply) on nitrogen accumulation, nodule nitrogen fixation and yield of soybean plants by 15N labeling with sand culture. The results showed that they all presented a single peak curve with improvement of phosphorus nutrition level, when phosphorus concentration of nutrient solution was about 31 mg/L, they all reached the maximum”
Claim · model-written summary
Nodule nitrogen fixation peaked at about 31 mg/L phosphorus.
- Taxon
- soybean
Glycine maxe0 - Treatment
- phosphorus nutrition levele0
- Outcome
- nodule nitrogen fixatione0
- Direction
- maximume0
- Value
- 31 mg/Le0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The objective of this study was to determine effect of phosphorus nutrition (including phosphorus nutrition level and interruption of phosphorus supply) on nitrogen accumulation, nodule nitrogen fixation and yield of soybean plants by 15N labeling with sand culture. The results showed that they all presented a single peak curve with improvement of phosphorus nutrition level, when phosphorus concentration of nutrient solution was about 31 mg/L, they all reached the maximum”
Claim · model-written summary
Soybean yield peaked at about 31 mg/L phosphorus.
- Taxon
- soybeanGlycine maxe0
- Treatment
- phosphorus nutrition levele0
- Outcome
- yielde0
- Direction
- maximume0
- Value
- 31 mg/Le0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The objective of this study was to determine effect of phosphorus nutrition (including phosphorus nutrition level and interruption of phosphorus supply) on nitrogen accumulation, nodule nitrogen fixation and yield of soybean plants by 15N labeling with sand culture. The results showed that they all presented a single peak curve with improvement of phosphorus nutrition level, when phosphorus concentration of nutrient solution was about 31 mg/L, they all reached the maximum”
Claim · model-written summary
Phosphorus nutrition level affected nodule fixation less than yield formation.
- Treatment
- phosphorus nutrition levele0
- Outcome
- nodule nitrogen fixatione0
- Direction
- lowere0
- Comparator
- yield formation levele0
Not reportedTaxon
Verbatim
e0“effect of phosphorus nutrition level on nodule nitrogen fixation was lower than that on yield formation level.”
Claim · model-written summary
Interrupting phosphorus supply seriously inhibited nitrogen accumulation.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Interruption of phosphorus supplye0
- Outcome
- nitrogen accumulatione0
- Direction
- seriously inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Interruption of phosphorus supply during soybean growth period, nitrogen accumulation and nodule nitrogen fixation were seriously inhibited”
Claim · model-written summary
Interrupting phosphorus supply seriously inhibited nodule nitrogen fixation.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Interruption of phosphorus supplye0
- Outcome
- nodule nitrogen fixatione0
- Direction
- seriously inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Interruption of phosphorus supply during soybean growth period, nitrogen accumulation and nodule nitrogen fixation were seriously inhibited”
Claim · model-written summary
Interrupting phosphorus supply during V3-R1 significantly decreased yield.
Not reportedTaxonComparator
Verbatim
e0“yield was decreased significantly when interruption of phosphorus supply during V3-R1 and R1-R5 period”
Claim · model-written summary
Interrupting phosphorus supply during R1-R5 significantly decreased yield.
Not reportedTaxonComparator
Verbatim
e0“yield was decreased significantly when interruption of phosphorus supply during V3-R1 and R1-R5 period”
Claim · model-written summary
Interruption during R5-R7 had no significant effect on nitrogen accumulation, nodule nitrogen fixation, or yield.
- Treatment
- interruption of phosphorus supply during R5-R7 periode0
- Outcome
- nitrogen accumulation, nodule nitrogen fixation and yielde0
- Direction
- no significant effecte0
Not reportedTaxonComparator
Verbatim
e0“interruption of phosphorus supply during R5-R7 period had no significant effect on nitrogen accumulation, nodule nitrogen fixation and yield.”
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See all 355 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.