Abstract
Quality of Carrots Grown for Processing as Affected by Nitrogen Fertilization and Harvest Term In 2007-2008 the effect of nitrogen fertilization and harvest term on quality of two carrot cultivars was investigated. The field experiment was carried out in Żelazna Experimental Station of Warsaw University of Life Sciences. Karotan F 1 and Trafford F 1 cultivars, commonly grown for juice industry, were the objects of the experiment. Carrot seeds were sown at the beginning of May. Nitrogen fertilization was applied in five rates, ranged from 0 to 120 kg·ha -1 and in two terms — before sowing and in the middle of growing season. Roots were harvested in three terms: mid-September, mid-October and the first decade of November. After harvest there were determined: nitrates (NO 3 ) content in carrot roots and juice, soluble solids, colour parameters of juice in CIE L * a * b * system. The dose and the term of nitrogen fertilization influenced nitrates content in carrots, and the highest NO 3 concentration was found in carrots fertilized with 120 kg·ha -1 of N before sowing. Karotan showed higher nitrates accumulation than Trafford. The content of nitrates in the roots was markedly higher than in carrot juice. Nitrates content in carrots decreased with delaying of harvest time, in opposite to soluble solids content. Soluble solids content and colour parameters of carrot juice were not affected by nitrogen fertilization, but the lowest L * , a * and b * values were observed at the last term of harvest.
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Claims 7
Claim · model-written summary
The highest nitrate concentration in carrots was found after 120 kg N per ha applied before sowing.
- Taxon
- Carrots
Daucus carotat0 - Treatment
- 120 kg·ha -1 of N before sowinge1
- Outcome
- NO 3 concentratione1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Quality of Carrots Grown for Processing as Affected by Nitrogen Fertilization and Harvest Term”
e1“The dose and the term of nitrogen fertilization influenced nitrates content in carrots, and the highest NO 3 concentration was found in carrots fertilized with 120 kg·ha -1 of N before sowing”
Claim · model-written summary
Karotan carrots accumulated more nitrates than Trafford.
- Taxon
- CarrotsDaucus carotat0
- Material
- Karotane2
- Outcome
- nitrates accumulatione2
- Direction
- highere2
- Comparator
- Trafforde2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Quality of Carrots Grown for Processing as Affected by Nitrogen Fertilization and Harvest Term”
e2“Karotan showed higher nitrates accumulation than Trafford”
Claim · model-written summary
Nitrate content in carrot roots was markedly higher than in carrot juice.
- Taxon
- CarrotsDaucus carotat0
- Organ / stage
- rootse3
- Outcome
- content of nitratese3
- Direction
- markedly highere3
- Comparator
- carrot juicee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Quality of Carrots Grown for Processing as Affected by Nitrogen Fertilization and Harvest Term”
e3“The content of nitrates in the roots was markedly higher than in carrot juice”
Claim · model-written summary
Nitrate content in carrots decreased with delaying harvest time.
- Taxon
- CarrotsDaucus carotat0
- Treatment
- delaying of harvest timee4
- Outcome
- Nitrates contente4
- Direction
- decreasede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Quality of Carrots Grown for Processing as Affected by Nitrogen Fertilization and Harvest Term”
e4“Nitrates content in carrots decreased with delaying of harvest time, in opposite to soluble solids content”
Claim · model-written summary
Soluble solids content in carrots increased with delaying harvest time.
- Taxon
- CarrotsDaucus carotat0
- Treatment
- delaying of harvest timee4
- Outcome
- soluble solids contente4
- Direction
- increaseinferrede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Quality of Carrots Grown for Processing as Affected by Nitrogen Fertilization and Harvest Term”
e4“Nitrates content in carrots decreased with delaying of harvest time, in opposite to soluble solids content”
Claim · model-written summary
Soluble solids content and colour parameters of carrot juice were not affected by nitrogen fertilization.
- Taxon
- CarrotsDaucus carotat0
- Treatment
- nitrogen fertilizatione5
- Outcome
- Soluble solids content and colour parameters of carrot juicee5
- Direction
- not affectede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Quality of Carrots Grown for Processing as Affected by Nitrogen Fertilization and Harvest Term”
e5“Soluble solids content and colour parameters of carrot juice were not affected by nitrogen fertilization”
Claim · model-written summary
The lowest L*, a* and b* values of carrot juice were observed at the last harvest term.
- Taxon
- CarrotsDaucus carotat0
- Outcome
- L * , a * and b * valuese6
- Qualifier
- at the last term of harveste6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Quality of Carrots Grown for Processing as Affected by Nitrogen Fertilization and Harvest Term”
e6“the lowest L * , a * and b * values were observed at the last term of harvest”
The same questions in other papers
fertilization · quality: sugar starch · Daucus carota (carrot)Positive and negative results
1 paper in the same direction as this paper · 13 in the opposite direction
- positive
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See all 15 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.