Abstract
A vegetation experiment was conducted in 2001-2002 in an unheated green- house on the effect of differentiated nitrogen fertilization on yield and quality of garden rocket. Nitrogen was used in three forms, i.e. lime saltpeter, urea and ammonium sul- phate, and in three doses: 0.2; 0.4; 0.6 Ndm -3 (2001) and 0.25; 0.50; 0.75 g Ndm -3 (2002). The plants' growth, yield and content of nutrients were evaluated and an chemical analysis of the substrate after the harvest was conducted. The studies pointed out a possi- bility of cultivating garden rocket in autumn in an unheated greenhouse. A higher yield of fresh weight was obtained in the treatments with lime saltpetre and urea as compared with ammonium sulphate. Increased doses of nitrogen, independently of the kind of the applied fertilizer, caused a decrease of the yield of rocket fresh weight. The studied plants of gar- den rocket were characterized by a high content of dry matter, vitamin C, protein, potas- sium and calcium. The content of nitrates in the dry matter of leaves was within the range 0.02-0.98%, depending on nitrogen dose and the year of studies. The application of 0.2-0.25 g Ndm -3 of the substrate in the autumn cultivation of rocket proved to be the most advantageous in view of the highest yield of fresh weight, the highest content of vi- tamin C and the lowest proportion of nitrates in the leaf dry weight.
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Claims 8
Claim · model-written summary
Autumn cultivation of garden rocket in an unheated greenhouse was feasible.
- Taxon
- garden rocket
Eruca vesicaria subsp. sativae0 - Outcome
- possi- bility of cultivating garden rocket in autumne0
- Setting
- unheated greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a possi- bility of cultivating garden rocket in autumn in an unheated greenhouse”
Claim · model-written summary
Lime saltpetre gave higher fresh weight yield than ammonium sulphate.
- Taxon
- garden rocketEruca vesicaria subsp. sativat0
- Treatment
- lime saltpetree0
- Outcome
- yield of fresh weighte0
- Direction
- highere0
- Comparator
- ammonium sulphatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A higher yield of fresh weight was obtained in the treatments with lime saltpetre and urea as compared with ammonium sulphate.”
t0“garden rocket”
Claim · model-written summary
Urea gave higher fresh weight yield than ammonium sulphate.
- Taxon
- garden rocketEruca vesicaria subsp. sativat0
- Treatment
- ureae0
- Outcome
- yield of fresh weighte0
- Direction
- highere0
- Comparator
- ammonium sulphatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A higher yield of fresh weight was obtained in the treatments with lime saltpetre and urea as compared with ammonium sulphate.”
t0“garden rocket”
Claim · model-written summary
Increasing nitrogen doses decreased rocket fresh weight yield.
- Taxon
- rockete0
- Treatment
- Increased doses of nitrogene0
- Outcome
- yield of rocket fresh weighte0
- Direction
- decreasee0
Not reportedComparator
Verbatim
e0“Increased doses of nitrogen, independently of the kind of the applied fertilizer, caused a decrease of the yield of rocket fresh weight.”
Claim · model-written summary
Leaf dry matter nitrate content ranged from 0.02 to 0.98 percent.
- Taxon
- garden rocketEruca vesicaria subsp. sativat0
- Outcome
- content of nitrates in the dry matter of leavese0
- Value
- 0.02-0.98%e0
- Qualifier
- depending on nitrogen dose and the year of studiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The content of nitrates in the dry matter of leaves was within the range 0.02-0.98%, depending on nitrogen dose and the year of studies.”
t0“garden rocket”
Claim · model-written summary
The 0.2-0.25 g nitrogen rate gave the highest fresh weight yield.
Not reportedComparator
Verbatim
e0“The application of 0.2-0.25 g Ndm -3 of the substrate in the autumn cultivation of rocket proved to be the most advantageous in view of the highest yield of fresh weight”
Claim · model-written summary
The 0.2-0.25 g nitrogen rate gave the highest vitamin C content.
Not reportedComparator
Verbatim
e0“The application of 0.2-0.25 g Ndm -3 of the substrate in the autumn cultivation of rocket proved to be the most advantageous in view of the highest yield of fresh weight, the highest content of vi- tamin C”
Claim · model-written summary
The 0.2-0.25 g nitrogen rate gave the lowest leaf nitrate proportion.
- Taxon
- rockete0
- Treatment
- 0.2-0.25 g Ndm -3e0
- Outcome
- proportion of nitrates in the leaf dry weighte0
- Direction
- loweste0
Not reportedComparator
Verbatim
e0“The application of 0.2-0.25 g Ndm -3 of the substrate in the autumn cultivation of rocket proved to be the most advantageous in view of the highest yield of fresh weight, the highest content of vi- tamin C and the lowest proportion of nitrates in the leaf dry weight.”
The same questions in other papers
nitrogen · yield · Eruca vesicariaPositive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
1 paper more in this group
See all 5 papers →lime · yield · Eruca vesicariaResults agree
1 paper in the same direction as this paper
- positive
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.