Abstract
A three-year field experiment was conducted in northern Poland on degraded black soil, valuation class IIIb, with very high content of phosphorus and potassium, low content of sulphur, and neutral pH. The experiment was carried out in a split-block design with two factors, in four replications. The aim of the study was to evaluate the effect of different application rates of nitrogen (factor A: 0, 60, 120 and 180 kg N·ha-1) and sulphur (factor B: 0, 20 and 60 kg S·ha-1), taking into account different means of its application (soil application before sowing and foliar application of sulphur) on the oil content and yield in seeds of the Star cultivar of rapeseed. Somewhat higher oil content and yield were observed in the case of soil application of sulphur than for foliar application. In each growing season nitrogen and sulphur applied independently significantly increased the oil content and yield from the seeds of spring rapeseed as compared to the control. Irrespective of the means of application, application of sulphur together with nitrogen generally resulted in higher oil content and yield than application of either of these nutrients alone, but their interaction was not confirmed statistically. The observed beneficial effect of sulphur applied alone and together with nitrogen on important criteria of spring rapeseed quality substantiates the need to include sulphur in fertilization of this species.
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Claims 9
Claim · model-written summary
Soil sulphur application produced somewhat higher oil content than foliar application.
- Taxon
- spring rape
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napust0 - Treatment
- soil application of sulphure0
- Outcome
- oil contente0
- Direction
- highere0
- Comparator
- foliar applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“Somewhat higher oil content and yield were observed in the case of soil application of sulphur than for foliar application”
t0“spring rape”
Claim · model-written summary
Soil sulphur application produced somewhat higher oil yield than foliar application.
- Taxon
- spring rapeBrassica napust0
- Treatment
- soil application of sulphure0
- Outcome
- yielde0
- Direction
- highere0
- Comparator
- foliar applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Somewhat higher oil content and yield were observed in the case of soil application of sulphur than for foliar application”
t0“spring rape”
Claim · model-written summary
Nitrogen alone significantly increased spring rapeseed oil content versus control.
Verbatim
e0“nitrogen and sulphur applied independently significantly increased the oil content and yield from the seeds of spring rapeseed as compared to the control”
Claim · model-written summary
Nitrogen alone significantly increased spring rapeseed oil yield versus control.
Verbatim
e0“nitrogen and sulphur applied independently significantly increased the oil content and yield from the seeds of spring rapeseed as compared to the control”
Claim · model-written summary
Sulphur alone significantly increased spring rapeseed oil content versus control.
Verbatim
e0“nitrogen and sulphur applied independently significantly increased the oil content and yield from the seeds of spring rapeseed as compared to the control”
Claim · model-written summary
Sulphur alone significantly increased spring rapeseed oil yield versus control.
Verbatim
e0“nitrogen and sulphur applied independently significantly increased the oil content and yield from the seeds of spring rapeseed as compared to the control”
Claim · model-written summary
Sulphur together with nitrogen generally increased oil content over either nutrient alone, without a significant interaction.
- Taxon
- spring rapeBrassica napust0
- Treatment
- sulphur together with nitrogene0
- Outcome
- oil contente0
- Direction
- highere0
- Comparator
- either of these nutrients alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of sulphur together with nitrogen generally resulted in higher oil content and yield than application of either of these nutrients alone, but their interaction was not confirmed statistically”
t0“spring rape”
Claim · model-written summary
Sulphur together with nitrogen generally increased oil yield over either nutrient alone, without a significant interaction.
- Taxon
- spring rapeBrassica napust0
- Treatment
- sulphur together with nitrogene0
- Outcome
- yielde0
- Direction
- highere0
- Comparator
- either of these nutrients alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of sulphur together with nitrogen generally resulted in higher oil content and yield than application of either of these nutrients alone, but their interaction was not confirmed statistically”
t0“spring rape”
Claim · model-written summary
The authors recommend including sulphur in spring rapeseed fertilization.
- Taxon
- spring rapeBrassica napust0
- Outcome
- include sulphur in fertilization of this speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“substantiates the need to include sulphur in fertilization of this species”
t0“spring rape”
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See all 239 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.