Abstract
The effectiveness of calcium nitrate (CN) and calcium ammonium nitrate (CAN) as N sources for winter wheat in spring was studied in seven field trials in Southern Finland, in the province of Uusimaa. The experiments were carried out on clay soils in 1986—1989. Nitrogen dressings of 120—150 kg ha-1 were broadcasted either as a single application or split into two applications. The two applications were in most cases 30—40 and 90 —110 kg ha-1. The single or the first split application was given in the beginning of the growing season and the latter application at the end of tillering. The grain yields obtained by a single N application of 140—150 kg ha-1 ranged from 2 610 to 7 550 kg ha-1 and the protein content of grains from 9.4 to 14.5 %. The nitrogen form of the fertilizer had no significant effect on the grain yield and on the protein content of grains. Splitting the nitrogen increased the grain yield by 400 kg ha-1 and the protein content of grains by 0.8 percentage points.
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Claims 6
Claim · model-written summary
Single nitrogen applications of 140—150 kg ha-1 produced winter wheat grain yields from 2 610 to 7 550 kg ha-1.
- Taxon
- winter wheat
Triticum aestivumt0 - Treatment
- single N application of 140—150 kg ha-1e0
- Outcome
- grain yieldse0
- Value
- 2 610 to 7 550 kg ha-1e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The grain yields obtained by a single N application of 140—150 kg ha-1 ranged from 2 610 to 7 550 kg ha-1”
t0“winter wheat”
Claim · model-written summary
Single nitrogen applications gave winter wheat grain protein contents from 9.4 to 14.5 %.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- single N application of 140—150 kg ha-1e1
- Outcome
- protein content of grainse0
- Value
- 9.4 to 14.5 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the protein content of grains from 9.4 to 14.5 %”
t0“winter wheat”
e1“single N application of 140—150 kg ha-1”
Claim · model-written summary
Fertilizer nitrogen form had no significant effect on winter wheat grain yield.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- calcium ammonium nitrate and calcium nitratet1
- Outcome
- grain yielde0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The nitrogen form of the fertilizer had no significant effect on the grain yield and on the protein content of grains”
t0“winter wheat”
t1“calcium ammonium nitrate and calcium nitrate”
Claim · model-written summary
Fertilizer nitrogen form had no significant effect on winter wheat grain protein content.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- calcium ammonium nitrate and calcium nitratet1
- Outcome
- protein content of grainse0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The nitrogen form of the fertilizer had no significant effect on the grain yield and on the protein content of grains”
t0“winter wheat”
t1“calcium ammonium nitrate and calcium nitrate”
Claim · model-written summary
Splitting nitrogen application increased winter wheat grain yield by 400 kg ha-1.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- Splitting the nitrogene0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 400 kg ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Splitting the nitrogen increased the grain yield by 400 kg ha-1”
t0“winter wheat”
t1“split application”
Claim · model-written summary
Splitting nitrogen application increased winter wheat grain protein content by 0.8 percentage points.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- Splitting the nitrogene0
- Outcome
- protein content of grainse0
- Direction
- increasede0
- Value
- 0.8 percentage pointse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Splitting the nitrogen increased the grain yield by 400 kg ha-1 and the protein content of grains by 0.8 percentage points”
t0“winter wheat”
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