Abstract
A growing interest in soybean cultivation in Poland has been observed in the recent years, however it faces a lot of difficulties resulting from a poorly understood effectiveness of plant nitrogen fertilization and from the introduction of Bradyrhizobium japonicum to the environment. The aim of the study was to evaluate the consistency of response of two soybean cultivars to three different rates of mineral N fertilization and two seed inoculation treatments with B. japonicum in field conditions over four years regardless of previous B. japonicum presence in the soil. A highly-diversified-over-years rainfall and temperature in the growing season do not allow for a definite statement of the differences resulting from seed inoculation and mineral N fertilization applied separately or jointly in soybean. A high sensitivity of the nodulation process to rainfall deficits was noted, which resulted in a decreased amount of B. japonicum DNA measured in qPCR and dry matter of nodules. ‘Annushka’ demonstrated a higher yield of seeds and protein, higher plants and the 1st pod setting. ‘Aldana’, due to a significant decrease in plant density, produced a higher number of pods, seeds per pod and the 1000 seed weight per plant. Both cultivars responded with an increase in the seed yield after seed inoculation with HiStick, also with an application of 30 and 60 kg N, as well as with Nitragina with 60 kg N.
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Claims 9
Claim · model-written summary
Annushka had a higher seed yield and protein yield.
- Taxon
- soybean
Glycine maxe0 - Material
- Annushkae2
- Outcome
- yield of seeds and proteine2
- Direction
- highere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The aim of the study was to evaluate the consistency of response of two soybean cultivars to three different rates of mineral N fertilization and two seed inoculation treatments with B. japonicum in field conditions over four years”
e2“Annushka’ demonstrated a higher yield of seeds and protein, higher plants and the 1st pod setting”
Claim · model-written summary
Annushka had higher plants and a higher 1st pod setting.
- Taxon
- soybeanGlycine maxe0
- Material
- Annushkae2
- Outcome
- plants and the 1st pod settinge2
- Direction
- highere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The aim of the study was to evaluate the consistency of response of two soybean cultivars to three different rates of mineral N fertilization and two seed inoculation treatments with B. japonicum in field conditions over four years”
e2“Annushka’ demonstrated a higher yield of seeds and protein, higher plants and the 1st pod setting”
Claim · model-written summary
Aldana plant density decreased significantly.
- Taxon
- soybeanGlycine maxe0
- Material
- Aldanae3
- Outcome
- plant densitye3
- Direction
- decreasee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The aim of the study was to evaluate the consistency of response of two soybean cultivars to three different rates of mineral N fertilization and two seed inoculation treatments with B. japonicum in field conditions over four years”
e3“Aldana’, due to a significant decrease in plant density, produced a higher number of pods, seeds per pod and the 1000 seed weight per plant”
Claim · model-written summary
Aldana produced a higher number of pods, seeds per pod and 1000 seed weight per plant.
- Taxon
- soybeanGlycine maxe0
- Material
- Aldanae3
- Outcome
- number of pods, seeds per pod and the 1000 seed weight per plante3
- Direction
- highere3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The aim of the study was to evaluate the consistency of response of two soybean cultivars to three different rates of mineral N fertilization and two seed inoculation treatments with B. japonicum in field conditions over four years”
e3“Aldana’, due to a significant decrease in plant density, produced a higher number of pods, seeds per pod and the 1000 seed weight per plant”
Claim · model-written summary
Seed inoculation with HiStick increased soybean seed yield in both cultivars.
- Taxon
- soybeanGlycine maxe0
- Treatment
- seed inoculation with HiSticke4
- Interactor
- B. japonicum
Bradyrhizobium japonicume0symbiont - Outcome
- seed yielde4
- Direction
- increasee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The aim of the study was to evaluate the consistency of response of two soybean cultivars to three different rates of mineral N fertilization and two seed inoculation treatments with B. japonicum in field conditions over four years”
e4“Both cultivars responded with an increase in the seed yield after seed inoculation with HiStick, also with an application of 30 and 60 kg N, as well as with Nitragina with 60 kg N”
Claim · model-written summary
Application of 30 and 60 kg N increased soybean seed yield in both cultivars.
- Taxon
- soybeanGlycine maxe0
- Treatment
- application of 30 and 60 kg Ne4
- Outcome
- seed yielde4
- Direction
- increasee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The aim of the study was to evaluate the consistency of response of two soybean cultivars to three different rates of mineral N fertilization and two seed inoculation treatments with B. japonicum in field conditions over four years”
e4“Both cultivars responded with an increase in the seed yield after seed inoculation with HiStick, also with an application of 30 and 60 kg N, as well as with Nitragina with 60 kg N”
Claim · model-written summary
Nitragina with 60 kg N increased soybean seed yield in both cultivars.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Nitragina with 60 kg Ne4
- Outcome
- seed yielde4
- Direction
- increasee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The aim of the study was to evaluate the consistency of response of two soybean cultivars to three different rates of mineral N fertilization and two seed inoculation treatments with B. japonicum in field conditions over four years”
e4“Both cultivars responded with an increase in the seed yield after seed inoculation with HiStick, also with an application of 30 and 60 kg N, as well as with Nitragina with 60 kg N”
Claim · model-written summary
Nodulation was highly sensitive to rainfall deficits, with decreased B. japonicum DNA and nodule dry matter.
- Taxon
- soybeanGlycine maxe0
- Treatment
- rainfall deficitse1
- Interactor
- B. japonicumBradyrhizobium japonicume1symbiont
- Outcome
- amount of B. japonicum DNA measured in qPCR and dry matter of nodulese1
- Direction
- decreasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The aim of the study was to evaluate the consistency of response of two soybean cultivars to three different rates of mineral N fertilization and two seed inoculation treatments with B. japonicum in field conditions over four years”
e1“A high sensitivity of the nodulation process to rainfall deficits was noted, which resulted in a decreased amount of B. japonicum DNA measured in qPCR and dry matter of nodules”
Claim · model-written summary
The rainfall and temperature variability did not allow a definite statement of the differences from seed inoculation and mineral N fertilization.
- Taxon
- soybeanGlycine maxe0
- Outcome
- definite statement of the differencese5
- Qualifier
- rainfall and temperature in the growing seasone5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The aim of the study was to evaluate the consistency of response of two soybean cultivars to three different rates of mineral N fertilization and two seed inoculation treatments with B. japonicum in field conditions over four years”
e5“A highly-diversified-over-years rainfall and temperature in the growing season do not allow for a definite statement of the differences resulting from seed inoculation and mineral N fertilization applied separately or jointly in soybean”
The same questions in other papers
inoculation · Bradyrhizobium japonicum · Glycine max (soybean)Results differ
63 papers in the same direction as this paper · 20 in the opposite direction · 2 reporting no difference from an alternative
- positive
- positive
- no effect
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See all 86 papers →nitrogen · yield · Glycine max (soybean)Positive and negative results
317 papers in the same direction as this paper · 91 in the opposite direction · 7 reporting no difference from an alternative
- positive
- positive
- positive
412 papers more in this group
See all 416 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.