Abstract
This paper presents the effect of soil supplementation with urea and magnesium on nitrogen uptake and its utilization by two different types of hybrid maize cultivars. Based on the results of 3-year fertilization studies, it was shown that for average volume of grain yield of maize, nitrogen content in grain dry matter and nitrogen uptake with its yield was significantly determined by the doses of nitrogen and magnesium, as well as by the type of maize cultivar. Joint N+Mg fertilization of maize increased the efficiency of nitrogen applied in the mineral fertilizer, whose evident effect was to obtain a higher yield of grain, nitrogen uptake, and utilization in comparison to N application alone. The SG hybrid ES Paroli was characterized by a significantly greater nitrogen uptake with yield of grain and utilization of nitrogen from the dose of mineral fertilizer for each nitrogen dose in comparison to the traditional cultivar ES Palazzo. With an increase in the level of nitrogen fertilization the utilization of nitrogen from the mineral fertilizer dose was reduced significantly. The application of 25 kg MgO·ha -1 caused a significant increase in contents of mineral nitrogen N-NH4 in the 0-30 cm and 30-60 cm soil horizins, while it reduced the amount of N-NO3 in both soil horizons in relation to the 0 kg dose of MgO·ha -1 . The content of mineral nitrogen NH4NO3 after maize harvest was increased significantly with an increase in the dose of nitrogen in each of the soil horizon sampling variants. In comparison to the traditional cultivar ES Palazzo the SG cultivar ES Paroli was the hybrid causing lower eutrophication of the soil medium in the autumn period. Calculated correlation coefficients between observed characteristics of mineral nitrogen in the soil showed that only the N-NO3 form was highly correlated with total mineral nitrogen in the soil, and it was so in each soil horizon.
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Claims 9
Claim · model-written summary
Joint N+Mg fertilization gave higher maize grain yield, nitrogen uptake and nitrogen utilization than N alone.
- Treatment
- Joint N+Mg fertilizatione1
- Outcome
- yield of grain, nitrogen uptake, and utilizatione1
- Direction
- highere1
- Comparator
- N application alonee1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper presents the effect of soil supplementation with urea and magnesium on nitrogen uptake and its utilization by two different types of hybrid maize cultivars”
e1“Joint N+Mg fertilization of maize increased the efficiency of nitrogen applied in the mineral fertilizer, whose evident effect was to obtain a higher yield of grain, nitrogen uptake, and utilization in comparison to N application alone”
Claim · model-written summary
Joint N+Mg fertilization increased the efficiency of applied nitrogen compared with N alone.
- Treatment
- Joint N+Mg fertilizatione1
- Outcome
- efficiency of nitrogen appliede1
- Direction
- increasede1
- Comparator
- N application alonee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper presents the effect of soil supplementation with urea and magnesium on nitrogen uptake and its utilization by two different types of hybrid maize cultivars”
e1“Joint N+Mg fertilization of maize increased the efficiency of nitrogen applied in the mineral fertilizer, whose evident effect was to obtain a higher yield of grain, nitrogen uptake, and utilization in comparison to N application alone”
Claim · model-written summary
The SG hybrid ES Paroli had significantly greater nitrogen uptake with grain yield and nitrogen utilization than ES Palazzo.
- Material
- ES Parolie2
- Treatment
- nitrogen dosee2
- Outcome
- nitrogen uptake with yield of grain and utilization of nitrogene2
- Direction
- greatere2
- Comparator
- ES Palazzoe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper presents the effect of soil supplementation with urea and magnesium on nitrogen uptake and its utilization by two different types of hybrid maize cultivars”
e2“The SG hybrid ES Paroli was characterized by a significantly greater nitrogen uptake with yield of grain and utilization of nitrogen from the dose of mineral fertilizer for each nitrogen dose in comparison to the traditional cultivar ES Palazzo”
Claim · model-written summary
Increasing nitrogen fertilization significantly reduced utilization of nitrogen from the mineral fertilizer dose.
- Treatment
- increase in the level of nitrogen fertilizatione3
- Outcome
- utilization of nitrogen from the mineral fertilizer dosee3
- Direction
- reducede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper presents the effect of soil supplementation with urea and magnesium on nitrogen uptake and its utilization by two different types of hybrid maize cultivars”
e3“With an increase in the level of nitrogen fertilization the utilization of nitrogen from the mineral fertilizer dose was reduced significantly”
Claim · model-written summary
Magnesium oxide at 25 kg MgO·ha -1 significantly increased mineral N-NH4 in the 0-30 cm and 30-60 cm soil horizons compared with 0 kg.
- Treatment
- 25 kg MgO·ha -1e4
- Outcome
- contents of mineral nitrogen N-NH4e4
- Direction
- increasee4
- Comparator
- 0 kg dose of MgO·ha -1e4
- Setting
- 0-30 cm and 30-60 cm soil horizinse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper presents the effect of soil supplementation with urea and magnesium on nitrogen uptake and its utilization by two different types of hybrid maize cultivars”
e4“The application of 25 kg MgO·ha -1 caused a significant increase in contents of mineral nitrogen N-NH4 in the 0-30 cm and 30-60 cm soil horizins, while it reduced the amount of N-NO3 in both soil horizons in relation to the 0 kg dose of MgO·ha -1”
Claim · model-written summary
Magnesium oxide at 25 kg MgO·ha -1 reduced soil N-NO3 in both horizons compared with 0 kg.
- Treatment
- 25 kg MgO·ha -1e4
- Outcome
- the amount of N-NO3e4
- Direction
- reducede4
- Comparator
- 0 kg dose of MgO·ha -1e4
- Setting
- both soil horizonse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper presents the effect of soil supplementation with urea and magnesium on nitrogen uptake and its utilization by two different types of hybrid maize cultivars”
e4“The application of 25 kg MgO·ha -1 caused a significant increase in contents of mineral nitrogen N-NH4 in the 0-30 cm and 30-60 cm soil horizins, while it reduced the amount of N-NO3 in both soil horizons in relation to the 0 kg dose of MgO·ha -1”
Claim · model-written summary
Increasing nitrogen dose significantly increased NH4NO3 mineral nitrogen in soil after maize harvest.
- Treatment
- increase in the dose of nitrogene5
- Outcome
- content of mineral nitrogen NH4NO3 after maize harveste5
- Direction
- increasede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper presents the effect of soil supplementation with urea and magnesium on nitrogen uptake and its utilization by two different types of hybrid maize cultivars”
e5“The content of mineral nitrogen NH4NO3 after maize harvest was increased significantly with an increase in the dose of nitrogen in each of the soil horizon sampling variants”
Claim · model-written summary
The SG hybrid ES Paroli caused lower soil eutrophication than ES Palazzo in the autumn period.
- Material
- ES Parolie6
- Outcome
- eutrophication of the soil mediume6
- Direction
- lowere6
- Comparator
- ES Palazzoe6
- Setting
- autumn periode6
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper presents the effect of soil supplementation with urea and magnesium on nitrogen uptake and its utilization by two different types of hybrid maize cultivars”
e6“In comparison to the traditional cultivar ES Palazzo the SG cultivar ES Paroli was the hybrid causing lower eutrophication of the soil medium in the autumn period”
Claim · model-written summary
N-NO3 was the only soil mineral N form highly correlated with total mineral nitrogen in soil.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper presents the effect of soil supplementation with urea and magnesium on nitrogen uptake and its utilization by two different types of hybrid maize cultivars”
e7“only the N-NO3 form was highly correlated with total mineral nitrogen in the soil”
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See all 3,908 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.