Abstract
The main nitrogen (N) sources in soybean production originate from soil fixing bacteria Bradyrhizobium spp. and from mineralization of soil organic N. These sources of N are often not sufficient to cover the N needs of the soybean. The present two-year field study aimed to evaluate the effects of soybean genotypes (Valjevka and Galina) and rates of starter fertilizer N (0, 30, 60, and 90 kg ha−1) on quantitative and qualitative parameters and on rain use efficiency (RUE) under contrasting weather conditions in the Pannonian region of Serbia. A field study conducted during two different growing seasons: first year with unfavorable weather conditions and second year with favorable weather conditions. As expected, the quantitative parameters, oil content, and RUE were higher in the year with favorable growing season, the second one. According to measured parameters, the genotype Valjevka performed higher yield potential as compared to the genotype Galina. The highest values of quantitative parameters and RUE were recorded at 60 kg N ha−1, protein content at 90 kg N ha−1 and oil content 0 kg N ha−1 (control). This study suggests that proper genotype selection and application of 60 kg N ha−1 as a starter dose with rhizobial inoculation could contribute to the high yield, while protein could be altered by N amount, independently on genotype.
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Claims 10
Claim · model-written summary
Quantitative parameters were higher in the favorable second season.
- Taxon
- Soybean
Glycine maxt0 - Outcome
- quantitative parameterse0
- Direction
- highere0
- Setting
- year with favorable growing seasone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“quantitative parameters, oil content, and RUE were higher in the year with favorable growing season, the second one”
t0“Soybean”
Claim · model-written summary
Oil content was higher in the favorable second season.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- oil contente0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“oil content, and RUE were higher in the year with favorable growing season, the second one”
t0“Soybean”
Claim · model-written summary
RUE was higher in the favorable second season.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- RUEe0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“RUE were higher in the year with favorable growing season, the second one”
t0“Soybean”
Claim · model-written summary
Valjevka had higher yield potential than Galina.
- Taxon
- SoybeanGlycine maxt0
- Material
- Valjevkae0
- Outcome
- yield potentiale0
- Direction
- highere0
- Comparator
- Galinae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“genotype Valjevka performed higher yield potential as compared to the genotype Galina”
t0“Soybean”
Claim · model-written summary
Quantitative parameters peaked at 60 kg N ha−1.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- 60 kg N ha−1e0
- Outcome
- quantitative parameterse0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest values of quantitative parameters and RUE were recorded at 60 kg N ha−1”
t0“Soybean”
Claim · model-written summary
RUE peaked at 60 kg N ha−1.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- 60 kg N ha−1e0
- Outcome
- RUEe0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest values of quantitative parameters and RUE were recorded at 60 kg N ha−1”
t0“Soybean”
Claim · model-written summary
Protein content peaked at 90 kg N ha−1.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- 90 kg N ha−1e0
- Outcome
- protein contente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“protein content at 90 kg N ha−1”
t0“Soybean”
Claim · model-written summary
Oil content peaked with zero starter nitrogen.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- 0 kg N ha−1e0
- Outcome
- oil contente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“oil content 0 kg N ha−1 (control)”
t0“Soybean”
Claim · model-written summary
Selecting genotype and applying 60 kg N ha−1 with rhizobial inoculation could improve yield.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- 60 kg N ha−1 as a starter dose with rhizobial inoculatione0
- Outcome
- high yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“proper genotype selection and application of 60 kg N ha−1 as a starter dose with rhizobial inoculation could contribute to the high yield”
t0“Soybean”
Claim · model-written summary
Nitrogen amount could alter protein content independently of genotype.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- N amounte0
- Outcome
- proteine0
- Qualifier
- independently on genotypee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“protein could be altered by N amount, independently on genotype”
t0“Soybean”
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See all 153 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.