Abstract
A field experiment was conducted for two consecutive seasons (2009/10 and 2010/11) in the Demonstration Farm of the Faculty of Agriculture at Shambat-Sudan, to study the interactive effect of nitrogen fertilization and rhizobium inoculation on nodulation and yield of soybean (Glycine max [L.] Merrill) plants. The experiment was laid out in a randomized complete block design with four replications. The treatments consist of increasing doses of nitrogen (0, 40 and 80 kg ha -1 urea) and one strain of rhizobium. The seeds of cultivar Giza 22 were either uninoculated or inoculated with Rhizobium japonicum strain TAL 110 before sowing. The results showed that nodules were only formed on inoculated plants and their number varied with the level of nitrogen fertilizer. The number of nodules and their dry weight per plant declined as the rate of nitrogen application increased. Inoculated or fertilized plants significantly increased seed yield relative to uninoculated non-fertilized control plants by 83% and 89%, respectively. However; the high dose of nitrogen fertilizer (80 Kg ha -1 ) depressed the positive effect of inoculum on seed yield. The high seed yield was associated with significantly higher number of pods per plant and number of seeds per pod. Rhizobium inoculated seeds exhibited increased protein content than that of control (63.3 vs 59.9) but with no effect on seed oil content. Application of small N-fertilizer (40 kg ha -1 ) in combination with rhizobial inoculation seemed to be an appropriate cultivation practice for soybean production under Sudan condition.
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Claims 9
Claim · model-written summary
Rhizobium inoculation increased soybean seed yield by 83% relative to uninoculated non-fertilized control plants.
- Taxon
- soybean
Glycine maxt0 - Material
- Giza 22e2
- Treatment
- RHIZOBIUM INOCULATIONt0
- Interactor
- Rhizobium japonicum strain TAL 110e2symbiont
- Outcome
- seed yielde1
- Direction
- increasede1
- Value
- 83%e1
- Comparator
- uninoculated non-fertilized control plantse1
- Setting
- Shambat-Sudane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“INTERACTIVE EFFECT OF NITROGEN FERTILIZATION AND RHIZOBIUM INOCULATION ON NODULATION AND YIELD OF SOYBEAN (Glycine max L. Merrill)”
e0“A field experiment was conducted for two consecutive seasons (2009/10 and 2010/11) in the Demonstration Farm of the Faculty of Agriculture at Shambat-Sudan”
e1“Inoculated or fertilized plants significantly increased seed yield relative to uninoculated non-fertilized control plants by 83% and 89%, respectively”
e2“The seeds of cultivar Giza 22 were either uninoculated or inoculated with Rhizobium japonicum strain TAL 110 before sowing”
Claim · model-written summary
Nitrogen fertilization increased soybean seed yield by 89% relative to uninoculated non-fertilized control plants.
- Taxon
- soybeanGlycine maxt0
- Treatment
- NITROGEN FERTILIZATIONt0
- Outcome
- seed yielde1
- Direction
- increasede1
- Value
- 89%e1
- Comparator
- uninoculated non-fertilized control plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“INTERACTIVE EFFECT OF NITROGEN FERTILIZATION AND RHIZOBIUM INOCULATION ON NODULATION AND YIELD OF SOYBEAN (Glycine max L. Merrill)”
e1“Inoculated or fertilized plants significantly increased seed yield relative to uninoculated non-fertilized control plants by 83% and 89%, respectively”
Claim · model-written summary
High seed yield was associated with significantly higher numbers of pods per plant and seeds per pod in Giza 22.
- Taxon
- soybeanGlycine maxt0
- Material
- Giza 22e2
- Outcome
- number of pods per plant and number of seeds per pode3
- Direction
- highere3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“INTERACTIVE EFFECT OF NITROGEN FERTILIZATION AND RHIZOBIUM INOCULATION ON NODULATION AND YIELD OF SOYBEAN (Glycine max L. Merrill)”
e2“The seeds of cultivar Giza 22 were either uninoculated or inoculated with Rhizobium japonicum strain TAL 110 before sowing”
e3“The high seed yield was associated with significantly higher number of pods per plant and number of seeds per pod”
Claim · model-written summary
Rhizobium inoculation increased seed protein content relative to control (63.3 vs 59.9).
- Taxon
- soybeanGlycine maxt0
- Treatment
- Rhizobium inoculated seedse4
- Outcome
- protein contente4
- Direction
- increasede4
- Value
- 63.3 vs 59.9e4
- Comparator
- controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“INTERACTIVE EFFECT OF NITROGEN FERTILIZATION AND RHIZOBIUM INOCULATION ON NODULATION AND YIELD OF SOYBEAN (Glycine max L. Merrill)”
e4“Rhizobium inoculated seeds exhibited increased protein content than that of control (63.3 vs 59.9) but with no effect on seed oil content”
Claim · model-written summary
Rhizobium inoculation had no effect on soybean seed oil content.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Rhizobium inoculated seedse4
- Outcome
- seed oil contente4
- Direction
- no effecte4
- Comparator
- controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“INTERACTIVE EFFECT OF NITROGEN FERTILIZATION AND RHIZOBIUM INOCULATION ON NODULATION AND YIELD OF SOYBEAN (Glycine max L. Merrill)”
e4“Rhizobium inoculated seeds exhibited increased protein content than that of control (63.3 vs 59.9) but with no effect on seed oil content”
Claim · model-written summary
Increasing nitrogen application rate reduced soybean nodule number and nodule dry weight per plant.
- Taxon
- soybeanGlycine maxt0
- Treatment
- rate of nitrogen applicatione5
- Outcome
- number of nodules and their dry weight per plante5
- Direction
- declinede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“INTERACTIVE EFFECT OF NITROGEN FERTILIZATION AND RHIZOBIUM INOCULATION ON NODULATION AND YIELD OF SOYBEAN (Glycine max L. Merrill)”
e5“The number of nodules and their dry weight per plant declined as the rate of nitrogen application increased”
Claim · model-written summary
The high nitrogen dose (80 kg/ha) depressed the positive effect of inoculation on soybean seed yield.
- Taxon
- soybeanGlycine maxt0
- Treatment
- high dose of nitrogen fertilizer (80 Kg ha -1 )e6
- Outcome
- positive effect of inoculum on seed yielde6
- Direction
- depressede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“INTERACTIVE EFFECT OF NITROGEN FERTILIZATION AND RHIZOBIUM INOCULATION ON NODULATION AND YIELD OF SOYBEAN (Glycine max L. Merrill)”
e6“However; the high dose of nitrogen fertilizer (80 Kg ha -1 ) depressed the positive effect of inoculum on seed yield”
Claim · model-written summary
Soybean nodules were formed only on rhizobium-inoculated plants.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Rhizobium inoculationt0
- Interactor
- Rhizobium japonicum strain TAL 110e2symbiont
- Outcome
- nodules were only formede7
- Comparator
- uninoculatede2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“INTERACTIVE EFFECT OF NITROGEN FERTILIZATION AND RHIZOBIUM INOCULATION ON NODULATION AND YIELD OF SOYBEAN (Glycine max L. Merrill)”
e2“The seeds of cultivar Giza 22 were either uninoculated or inoculated with Rhizobium japonicum strain TAL 110 before sowing”
e7“nodules were only formed on inoculated plants and their number varied with the level of nitrogen fertilizer”
Claim · model-written summary
Small nitrogen fertilizer (40 kg/ha) combined with rhizobial inoculation is an appropriate cultivation practice for soybean production in Sudan.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Application of small N-fertilizer (40 kg ha -1) in combination with rhizobial inoculatione0
- Outcome
- appropriate cultivation practicee0
- Setting
- Sudan conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of small N-fertilizer (40 kg ha -1) in combination with rhizobial inoculation seemed to be an appropriate cultivation practice for soybean production under Sudan condition”
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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.