Abstract
Abstract A pot experiment was conducted with a coarse‐textured calcareous soil (pH‐H2O 8.3) to study the effect of single and combined application of N and S fertilizers on soil pH, Fe, Mn, Zn, and P mobilization, and on growth and micronutrient uptake by com (Zea mays L.). Increasing amounts of elemental sulfur were mixed with the soil. To stimulate S oxidation, the treated soils were incubated for six weeks at field capacity. Nitrogen was applied as NH4NO3 (100, 200, and 400 mg N/kg). After six weeks, dry matter yields were recorded and shoots were analyzed for Fe, Mn, Zn, and P. At the end of the experiment, soil pH and the DTPA‐extractable micronutrients were determined. The results showed that: a. Soil pH was decreased by 0.2, 0.5, and 0.9 unit as a result of increasing S applications.b. Applied sulfur and N fertilizer had increased the availability of micronutrients to following crops.c. Application of N and/or S resulted in increased dry matter yields.d. Manganese uptake tended to be higher as amounts of N applied increased; this was most evident at the higher S application rates. This effect was, however, reversed for Fe, Zn, and P uptake.e. Under our experimental conditions, promising results were achieved on improving micronutrient availability and uptake when 400 mg N/kg was combined with 3 g S/kg.
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Claims 6
Claim · model-written summary
Increasing sulfur lowered soil pH by 0.2, 0.5 and 0.9 units.
- Taxon
- corn plants
Zea mays subsp. mayst0 - Treatment
- increasing S applicationse0
- Outcome
- Soil pHe0
- Direction
- decreasede0
- Value
- 0.2, 0.5, and 0.9 unite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil pH was decreased by 0.2, 0.5, and 0.9 unit as a result of increasing S applications.”
t0“corn plants”
Claim · model-written summary
Sulfur and nitrogen fertilizer increased soil micronutrient availability to following crops.
- Taxon
- corn plantsZea mays subsp. mayst0
- Treatment
- Applied sulfur and N fertilizere0
- Outcome
- availability of micronutrients to following cropse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Applied sulfur and N fertilizer had increased the availability of micronutrients to following crops.”
t0“corn plants”
Claim · model-written summary
Nitrogen and/or sulfur increased corn dry matter yield.
- Taxon
- corn plantsZea mays subsp. mayst0
- Treatment
- Application of N and/or Se0
- Outcome
- dry matter yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of N and/or S resulted in increased dry matter yields.”
t0“corn plants”
Claim · model-written summary
Manganese uptake tended to increase with nitrogen amount, especially at higher sulfur rates.
- Taxon
- corn plantsZea mays subsp. mayst0
- Treatment
- amounts of N appliede0
- Outcome
- Manganese uptakee0
- Direction
- highere0
- Qualifier
- higher S application ratese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Manganese uptake tended to be higher as amounts of N applied increased; this was most evident at the higher S application rates.”
t0“corn plants”
Claim · model-written summary
Iron, zinc and phosphorus uptake showed the reverse nitrogen trend from manganese.
- Taxon
- corn plantsZea mays subsp. mayst0
- Outcome
- Fe, Zn, and P uptakee0
- Direction
- reversede0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This effect was, however, reversed for Fe, Zn, and P uptake.”
t0“corn plants”
Claim · model-written summary
The combination of 400 mg N/kg and 3 g S/kg gave promising micronutrient availability and uptake.
- Taxon
- corn plantsZea mays subsp. mayst0
- Treatment
- 400 mg N/kg was combined with 3 g S/kge0
- Outcome
- micronutrient availability and uptakee0
- Direction
- improvinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“promising results were achieved on improving micronutrient availability and uptake when 400 mg N/kg was combined with 3 g S/kg.”
t0“corn plants”
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