Abstract
Symbiotic N2 fixation in legume nodules is a very important process by which some of the nitrogen requirements of the plant are met. For this reason, environmental factors that adversely affect the nodulation and efficiency of the nodules have significance. Since the rhizobia are part of the native flora of the soil, could be considered as indicators of the biological activity and its dynamic. The objective of this study was to determine the effect of soil compaction on the nodulation and yields on a soybean crop. Compaction dropped weight and size of nodules significantly. Through a linear regression was observed an exponential inverse relationship between soil bulk density and the relative weight of the nodules. The percentage of protein in grain and yield did not show a significant response to treatment.
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Claims 4
Claim · model-written summary
Compaction significantly reduced nodule weight and size.
- Taxon
- soybean crop
Glycine maxt0 - Treatment
- Compactione0
- Outcome
- weight and size of nodulese0
- Direction
- droppede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean crop”
e0“Compaction dropped weight and size of nodules significantly”
Claim · model-written summary
Soil bulk density was inversely related to relative nodule weight.
- Taxon
- soybean cropGlycine maxt0
- Treatment
- soil bulk densitye0
- Outcome
- relative weight of the nodulese0
- Direction
- inversee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean crop”
e0“an exponential inverse relationship between soil bulk density and the relative weight of the nodules”
Claim · model-written summary
Grain protein percentage did not respond significantly to compaction.
- Taxon
- soybean cropGlycine maxt0
- Treatment
- Compactione1
- Outcome
- percentage of protein in graine0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean crop”
e0“The percentage of protein in grain and yield did not show a significant response to treatment”
e1“Compaction dropped weight and size of nodules significantly”
Claim · model-written summary
Yield did not respond significantly to compaction.
- Taxon
- soybean cropGlycine maxt0
- Treatment
- Compactione1
- Outcome
- yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean crop”
e0“The percentage of protein in grain and yield did not show a significant response to treatment”
e1“Compaction dropped weight and size of nodules significantly”
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