Abstract
Background: Soybean production in Indonesia needs to be improved to fulfill 9.15% of its needs. This causes the level of soybean imports in Indonesia to be very high. Production imbalances and needs encourage the intensification of soybean cultivation. Intensification efforts are carried out with appropriate fertilization. Soybeans are a plant from the Leguminaceae family so that they can have a symbiotic relationship with many microorganisms, including rhizobium. This research examines the effect of nitrogen fertilizer and rhizobium on nodule growth and soybean yield. Methods: The method used was a two-factor factorial completely randomized design. The first factor is the dose of nitrogen fertilizer (0, 50, 100, and 150 kg.ha-1). The second factor was Rhizobium (control, inoculant, and soybean used soil). Data analysis was carried out by analysis of variance, if there is a significant difference, it was continued with Duncan's Multiple Range Test (DMRT) at the 5% level. Result: Nitrogen fertilizer reduces the number of effective root nodules. Still, it tends to increase the variables of plant height, number of leaves, root shoot ratio, plant biomass, number of pods per plant, and seed weight per plant. The optimum dose of nitrogen fertilizer to support soybean growth and yield is 95 kg.ha-1. Application of rhizobium can increase soybean yield. Application of rhizobium inoculation can increase the number of effective root nodules and seed weight per planting. The combination of nitrogen fertilizer and rhizobium inoculation can support the intensification of soybean cultivation in Indonesia.
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Claims 7
Claim · model-written summary
Nitrogen fertilizer reduced effective root nodule number.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- Nitrogen fertilizere0
- Outcome
- number of effective root nodulese0
- Direction
- reducese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen fertilizer reduces the number of effective root nodules.”
t0“Soybean (Glycine max L.)”
Claim · model-written summary
Nitrogen fertilizer tended to increase height, leaf number and root shoot ratio.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- nitrogen fertilizere1
- Outcome
- plant height, number of leaves, root shoot ratioe0
- Direction
- increasee0
- Qualifier
- tendse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Still, it tends to increase the variables of plant height, number of leaves, root shoot ratio, plant biomass, number of pods per plant, and seed weight per plant.”
t0“Soybean (Glycine max L.)”
e1“Nitrogen fertilizer reduces the number of effective root nodules.”
Claim · model-written summary
Nitrogen fertilizer tended to increase biomass, pod number and seed weight.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- nitrogen fertilizere1
- Outcome
- plant biomass, number of pods per plant, and seed weight per plante0
- Direction
- increasee0
- Qualifier
- tendse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Still, it tends to increase the variables of plant height, number of leaves, root shoot ratio, plant biomass, number of pods per plant, and seed weight per plant.”
t0“Soybean (Glycine max L.)”
e1“Nitrogen fertilizer reduces the number of effective root nodules.”
Claim · model-written summary
The reported optimum nitrogen fertilizer dose for soybean growth and yield was 95 kg.ha-1.
- Taxon
- soybeanGlycine maxe0
- Outcome
- optimum dose of nitrogen fertilizere0
- Value
- 95 kg.ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The optimum dose of nitrogen fertilizer to support soybean growth and yield is 95 kg.ha-1.”
Claim · model-written summary
Rhizobium application increased soybean yield.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Application of rhizobiume0
- Outcome
- soybean yielde0
- Direction
- increasee0
RhizobiumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of rhizobium can increase soybean yield.”
Claim · model-written summary
Rhizobium inoculation increased effective nodule number and seed weight.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Application of rhizobium inoculatione0
- Outcome
- number of effective root nodules and seed weight per plantinge0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of rhizobium inoculation can increase the number of effective root nodules and seed weight per planting.”
t0“Soybean (Glycine max L.)”
Claim · model-written summary
Combined nitrogen fertilizer and rhizobium inoculation could support soybean intensification in Indonesia.
- Taxon
- soybeanGlycine maxe0
- Outcome
- intensification of soybean cultivatione0
- Setting
- Indonesiae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The combination of nitrogen fertilizer and rhizobium inoculation can support the intensification of soybean cultivation in Indonesia.”
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