Abstract
The effect of N doses on the yield and nutritional values of the Sushi (FAO 340) maize hybrid were analysed in three years (2018, 2019, and 2020). The analyses were performed at the Látókép Experimental Station of the University of Debrecen on calcareous chernozem soil, in a striped, small-plot, non-irrigated long-term field experiment. In the experiment, in addition to the non-fertilized treatment (A0), the N-fertilizer doses were applied as basic fertilizer and top dressing. The 60 and 120 kg N ha-1 dose (A60, A120) applied as spring basic fertilizer were followed by two phases of top-dressing in V6 (V690, V6120) and V12 (V12150, V12180) phenophases; the amounts were +30 and +30 kg N ha-1. Maize yields were affected to varying degrees by crop year. The highest yields in 2018 and 2020 were recorded in the same V6150 treatment, while in 2019 the highest yield was obtained in the A120 treatment. Increasing the N doses resulted in an increase in the protein content of the maize kernel. Depending on the fertilizer treatments and the crop year effect, the protein content of maize kernels varied between 6.2–10.2 g x 100 g-1. In all three years, the protein content was the lowest in the control treatment (A0) and the highest in the V6150 treatment. The starch content ranged from 70.7 to 77.9 g x 100 g-1 in the average of the three years. In 2020, it was significantly higher in all nutrient treatments than in the other examined two years. The highest starch content - except for 2020 (A120, 77.9 g x 100 g-1) - was recorded in the A0 treatment (74.2, 72.3 g x 100 g-1). The oil content of maize kernels varied between the values of 3.8 and 5.2 g x 100 g-1 in the average of three years. In terms of oil content, the results for 2018 and 2019 can be considered the same, while in 2020 it was significantly lower. Fertilizer treatments did not significantly affect the oil content of maize in any of the years. The fertilizer dose applied in the V12 phenological phase was not effective in terms of yield and nutritional content (protein, starch and oil content).
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Claims 15
Claim · model-written summary
Maize yields were affected to varying degrees by crop year.
Zea maysNot reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The effect of N doses on the yield and nutritional values of the Sushi (FAO 340) maize hybrid”
e2“Maize yields were affected to varying degrees by crop year”
Claim · model-written summary
Increasing N doses increased the protein content of maize kernels.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The effect of N doses on the yield and nutritional values of the Sushi (FAO 340) maize hybrid”
e2“Increasing the N doses resulted in an increase in the protein content of the maize kernel”
Claim · model-written summary
Protein content of maize kernels varied between 6.2 and 10.2 g x 100 g-1 across fertilizer treatments and crop years.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the protein content of maize kernels varied between 6.2–10.2 g x 100 g-1”
Claim · model-written summary
Protein content was lowest in the control treatment (A0) in all three years.
- Treatment
- control treatment (A0)e1
- Outcome
- protein contente1
- Direction
- loweste1
- Qualifier
- In all three yearse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In all three years, the protein content was the lowest in the control treatment (A0) and the highest in the V6150 treatment”
e2“Increasing the N doses resulted in an increase in the protein content of the maize kernel”
Claim · model-written summary
Protein content was highest in the V6150 treatment in all three years.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In all three years, the protein content was the lowest in the control treatment (A0) and the highest in the V6150 treatment”
e2“Increasing the N doses resulted in an increase in the protein content of the maize kernel”
Claim · model-written summary
Starch content ranged from 70.7 to 77.9 g x 100 g-1 in the three-year average.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The effect of N doses on the yield and nutritional values of the Sushi (FAO 340) maize hybrid”
e2“The starch content ranged from 70.7 to 77.9 g x 100 g-1 in the average of the three years”
Claim · model-written summary
In 2020, starch content was significantly higher in all nutrient treatments than in the other two years.
- Treatment
- all nutrient treatmentse2
- Outcome
- starch contente3
- Direction
- highere2
- Comparator
- the other examined two yearse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The effect of N doses on the yield and nutritional values of the Sushi (FAO 340) maize hybrid”
e2“In 2020, it was significantly higher in all nutrient treatments than in the other examined two years”
e3“The starch content ranged from 70.7 to 77.9 g x 100 g-1 in the average of the three years”
Claim · model-written summary
Starch content was highest in the A0 treatment, except for 2020 (A120).
- Treatment
- A0 treatmente2
- Outcome
- starch contente2
- Direction
- higheste2
- Value
- 74.2, 72.3 g x 100 g-1e2
- Qualifier
- except for 2020e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The effect of N doses on the yield and nutritional values of the Sushi (FAO 340) maize hybrid”
e2“The highest starch content - except for 2020 (A120, 77.9 g x 100 g-1) - was recorded in the A0 treatment (74.2, 72.3 g x 100 g-1)”
Claim · model-written summary
Oil content of maize kernels varied between 3.8 and 5.2 g x 100 g-1 in the three-year average.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The effect of N doses on the yield and nutritional values of the Sushi (FAO 340) maize hybrid”
e2“The oil content of maize kernels varied between the values of 3.8 and 5.2 g x 100 g-1 in the average of three years”
Claim · model-written summary
Oil content was significantly lower in 2020 than in 2018 and 2019.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The effect of N doses on the yield and nutritional values of the Sushi (FAO 340) maize hybrid”
e2“In terms of oil content, the results for 2018 and 2019 can be considered the same, while in 2020 it was significantly lower”
Claim · model-written summary
Oil content in 2018 and 2019 can be considered the same.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The effect of N doses on the yield and nutritional values of the Sushi (FAO 340) maize hybrid”
e2“In terms of oil content, the results for 2018 and 2019 can be considered the same, while in 2020 it was significantly lower”
Claim · model-written summary
Fertilizer treatments did not significantly affect maize oil content in any year.
- Treatment
- Fertilizer treatmentse2
- Outcome
- oil contente2
- Direction
- did not significantly affecte2
- Qualifier
- in any of the yearse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The effect of N doses on the yield and nutritional values of the Sushi (FAO 340) maize hybrid”
e2“Fertilizer treatments did not significantly affect the oil content of maize in any of the years”
Claim · model-written summary
The fertilizer dose applied in the V12 phase was not effective for yield and nutritional content.
- Treatment
- fertilizer dose applied in the V12 phenological phasee2
- Outcome
- yield and nutritional contente2
- Direction
- not effectivee2
- Qualifier
- protein, starch and oil contente2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The effect of N doses on the yield and nutritional values of the Sushi (FAO 340) maize hybrid”
e2“The fertilizer dose applied in the V12 phenological phase was not effective in terms of yield and nutritional content (protein, starch and oil content)”
Claim · model-written summary
The highest yields in 2018 and 2020 were recorded in the V6150 treatment.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The effect of N doses on the yield and nutritional values of the Sushi (FAO 340) maize hybrid”
e2“The highest yields in 2018 and 2020 were recorded in the same V6150 treatment”
Claim · model-written summary
The highest yield in 2019 was obtained in the A120 treatment.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The effect of N doses on the yield and nutritional values of the Sushi (FAO 340) maize hybrid”
e2“in 2019 the highest yield was obtained in the A120 treatment”
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