Abstract
The three-year study was conducted on a calcareous chernozem experimental plot of the Institute of Field and Vegetable Crops. The experimental field trial was designed as corn soybean wheat crop rotation and performed in four replications. The aim of this study was to determine the effects of soybean seed inoculation with microbiological fertilizer, seed treatment with cobalt and molybdenum, as well as the effect of preceding maize crop fertilization with different dosages of nitrogen, on soybean yield and its protein and oil contents. This would allow defining optimal seed treatment that would enable production of high and stable yield of quality soybeans with the rationalization of the use of mineral nitrogen fertilizers. The application of the largest dose of 250 kg N ha(-1) was responsible for significantly (by 12.11%) higher yields compared with the control. Grain yield was not affected by the application of cobalt and molybdenum. No significant yield increase was found when seed that was treated only with Nitragin. The contents of protein and oil were statistically very significantly different between the three experimental years because the investigated qualitative properties of grain are highly dependent on hydrothermal conditions. The protein content in the soybean increased very significantly following the increasing amounts of nitrogen. Very significant effect of seed treatment on protein and oil content was found. The two-field system of maize and wheat cultivation should be upgraded to the three-field system: maize - soybean - wheat. The use of cobalt and molybdenum in slightly alkaline and alkaline soils did not contribute to the increase of grain yield or protein content in the grain. However, it caused very significant increase in soybean oil content on slightly alkaline soils. The effect of the increase was 1.77%.
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Claims 9
Claim · model-written summary
The largest preceding-maize nitrogen dose (250 kg N ha-1) gave significantly higher soybean yields, 12.11% above the control.
- Taxon
- soybean
Glycine maxt0 - Treatment
- the largest dose of 250 kg N ha(-1)e0
- Outcome
- yieldse0
- Direction
- highere0
- Value
- 12.11%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of the largest dose of 250 kg N ha(-1) was responsible for significantly (by 12.11%) higher yields compared with the control”
t0“yield and quality of soybean grain”
Claim · model-written summary
Cobalt and molybdenum application did not affect soybean grain yield.
- Taxon
- soybeanGlycine maxt0
- Treatment
- cobalt and molybdenume1
- Outcome
- Grain yielde1
- Direction
- not affectede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Grain yield was not affected by the application of cobalt and molybdenum”
t0“yield and quality of soybean grain”
Claim · model-written summary
Seed treated only with Nitragin gave no significant soybean yield increase.
- Taxon
- soybeanGlycine maxt0
- Treatment
- seed that was treated only with Nitragine2
- Interactor
- Nitragine2symbiont
- Outcome
- yielde2
- Direction
- No significant yield increasee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“No significant yield increase was found when seed that was treated only with Nitragin”
t0“yield and quality of soybean grain”
Claim · model-written summary
Protein and oil contents of soybean grain differed significantly between the three experimental years.
- Taxon
- soybeanGlycine maxt0
- Outcome
- contents of protein and oile3
- Qualifier
- between the three experimental yearse3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The contents of protein and oil were statistically very significantly different between the three experimental years”
t0“yield and quality of soybean grain”
Claim · model-written summary
Soybean protein content increased very significantly as the nitrogen amount increased.
- Taxon
- soybeanGlycine maxt0
- Treatment
- increasing amounts of nitrogene4
- Outcome
- protein contente4
- Direction
- increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The protein content in the soybean increased very significantly following the increasing amounts of nitrogen”
t0“yield and quality of soybean grain”
Claim · model-written summary
Seed treatment very significantly affected soybean protein and oil content.
- Taxon
- soybeanGlycine maxt0
- Treatment
- seed treatmente5
- Outcome
- protein and oil contente5
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Very significant effect of seed treatment on protein and oil content was found”
t0“yield and quality of soybean grain”
Claim · model-written summary
The two-field maize and wheat system should be upgraded to a three-field maize-soybean-wheat rotation.
- Taxon
- soybeanGlycine maxt0
- Outcome
- upgraded to the three-field systeme6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“The two-field system of maize and wheat cultivation should be upgraded to the three-field system: maize - soybean - wheat”
t0“yield and quality of soybean grain”
Claim · model-written summary
Cobalt and molybdenum in slightly alkaline and alkaline soils did not increase soybean grain yield or protein content.
- Taxon
- soybeanGlycine maxt0
- Treatment
- cobalt and molybdenume7
- Outcome
- grain yield or protein contente7
- Direction
- did not contribute to the increasee7
- Setting
- slightly alkaline and alkaline soilse7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“The use of cobalt and molybdenum in slightly alkaline and alkaline soils did not contribute to the increase of grain yield or protein content in the grain”
t0“yield and quality of soybean grain”
Claim · model-written summary
Cobalt and molybdenum very significantly increased soybean oil content on slightly alkaline soils, by 1.77%.
- Taxon
- soybeanGlycine maxt0
- Treatment
- cobalt and molybdenume2
- Outcome
- soybean oil contente0
- Direction
- increasee0
- Value
- 1.77%e1
- Setting
- slightly alkaline soilse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, it caused very significant increase in soybean oil content on slightly alkaline soils”
e1“The effect of the increase was 1.77%”
e2“The use of cobalt and molybdenum in slightly alkaline and alkaline soils”
t0“yield and quality of soybean grain”
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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.