Abstract
In many countries, Jerusalem artichoke (JA) is a source of biomass for renewable energy production and alternative biofuel feedstock, and it is used for feed and food production. The species also has medicinal properties, and it is used in soil reclamation. The aim of this study was to evaluate the effect of N fertilization on the yield and macronutrient concentrations in JA tubers. The effect of N fertilization (control plot, unfertilized, 80 and 120 kg ha−1) on aerial biomass yield, tuber yield, and the mineral composition of tubers in three JA cultivars (“cv.”) (Rubik, Albik, and Gute Gelbe) was investigated in a field experiment. Tuber yield (40.99 Mg ha−1) and aerial biomass yield (62.76 Mg ha−1) were highest in cv. Gute Gelbe fertilized with 120 kg N ha−1 in the warm and moderately wet growing season of 2018. Agronomic N-use efficiency (AE) was highest in cv. Gute Gelbe. In the treatment supplied with 80 kg N ha−1, the fresh matter yield (FMY) of tubers was determined at 66.4 kg kg−1 N, whereas in the treatment fertilized with 120 kg N ha−1, the FMY of tubers reached 101.8 kg kg−1 N. The evaluated JA cultivars differed in their responses to an increase in the N fertilizer (marginal efficiency—ME) rate from 80 to 120 kg ha−1. The strongest response was observed in cv. Gute Gelbe, where the tuber yield increased by 172.6 kg kg−1 N. The tubers of cv. Gute Gelbe were characterized by significantly higher concentrations of N, K, Mg, and S compared with the other cultivars. The concentrations of macronutrients in the tubers (without Mg) were higher in spring. Nitrogen fertilization did not cause differences in the concentrations of P, K, Ca, Mg, and S, but it increased the N concentration in tubers.
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Claims 13
Claim · model-written summary
Gute Gelbe at 120 kg N per hectare had the highest tuber yield, 40.99 Mg per hectare.
- Taxon
- Jerusalem Artichoke
.jpg?width=60)
Helianthus tuberosust0 - Material
- cv. Gute Gelbee0
- Treatment
- 120 kg N ha−1e0
- Outcome
- Tuber yielde0
- Direction
- higheste0
- Value
- 40.99 Mg ha−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Tuber yield (40.99 Mg ha−1) and aerial biomass yield (62.76 Mg ha−1) were highest in cv. Gute Gelbe fertilized with 120 kg N ha−1 in the warm and moderately wet growing season of 2018.”
t0“Jerusalem Artichoke”
Claim · model-written summary
Gute Gelbe at 120 kg N per hectare had the highest aerial biomass yield, 62.76 Mg per hectare.
- Taxon
- Jerusalem ArtichokeHelianthus tuberosust0
- Material
- cv. Gute Gelbee0
- Treatment
- 120 kg N ha−1e0
- Outcome
- aerial biomass yielde0
- Direction
- higheste0
- Value
- 62.76 Mg ha−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tuber yield (40.99 Mg ha−1) and aerial biomass yield (62.76 Mg ha−1) were highest in cv. Gute Gelbe fertilized with 120 kg N ha−1 in the warm and moderately wet growing season of 2018.”
t0“Jerusalem Artichoke”
Claim · model-written summary
Gute Gelbe had the highest agronomic nitrogen-use efficiency.
- Taxon
- Jerusalem ArtichokeHelianthus tuberosust0
- Material
- cv. Gute Gelbee0
- Outcome
- Agronomic N-use efficiency (AE)e0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Agronomic N-use efficiency (AE) was highest in cv. Gute Gelbe.”
t0“Jerusalem Artichoke”
Claim · model-written summary
At 80 kg N per hectare, tuber fresh-matter yield per N was 66.4 kg kg−1 N.
- Taxon
- Jerusalem ArtichokeHelianthus tuberosust0
- Treatment
- 80 kg N ha−1e0
- Outcome
- fresh matter yield (FMY) of tuberse0
- Value
- 66.4 kg kg−1 Ne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the treatment supplied with 80 kg N ha−1, the fresh matter yield (FMY) of tubers was determined at 66.4 kg kg−1 N”
t0“Jerusalem Artichoke”
Claim · model-written summary
At 120 kg N per hectare, tuber fresh-matter yield per N was 101.8 kg kg−1 N.
- Taxon
- Jerusalem ArtichokeHelianthus tuberosust0
- Treatment
- 120 kg N ha−1e0
- Outcome
- FMY of tuberse0
- Value
- 101.8 kg kg−1 Ne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in the treatment fertilized with 120 kg N ha−1, the FMY of tubers reached 101.8 kg kg−1 N.”
t0“Jerusalem Artichoke”
Claim · model-written summary
Cultivars differed in marginal efficiency response to raising nitrogen rate from 80 to 120 kg per hectare.
- Taxon
- Jerusalem ArtichokeHelianthus tuberosust0
- Material
- JA cultivarse0
- Outcome
- responses to an increase in the N fertilizer (marginal efficiency—ME) ratee0
- Direction
- differede0
- Qualifier
- from 80 to 120 kg ha−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The evaluated JA cultivars differed in their responses to an increase in the N fertilizer (marginal efficiency—ME) rate from 80 to 120 kg ha−1.”
t0“Jerusalem Artichoke”
Claim · model-written summary
Gute Gelbe showed the strongest tuber-yield response, 172.6 kg kg−1 N.
- Taxon
- Jerusalem ArtichokeHelianthus tuberosust0
- Material
- cv. Gute Gelbee0
- Outcome
- tuber yielde0
- Direction
- increasede0
- Value
- 172.6 kg kg−1 Ne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The strongest response was observed in cv. Gute Gelbe, where the tuber yield increased by 172.6 kg kg−1 N.”
t0“Jerusalem Artichoke”
Claim · model-written summary
Gute Gelbe tubers had significantly higher nitrogen, potassium, and magnesium concentrations than other cultivars.
- Taxon
- Jerusalem ArtichokeHelianthus tuberosust0
- Material
- cv. Gute Gelbee0
- Organ / stage
- tuberse0
- Outcome
- concentrations of N, K, Mge0
- Direction
- highere0
- Comparator
- other cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The tubers of cv. Gute Gelbe were characterized by significantly higher concentrations of N, K, Mg, and S compared with the other cultivars.”
t0“Jerusalem Artichoke”
Claim · model-written summary
Gute Gelbe tubers had significantly higher sulfur concentration than other cultivars.
- Taxon
- Jerusalem ArtichokeHelianthus tuberosust0
- Material
- cv. Gute Gelbee0
- Organ / stage
- tuberse0
- Outcome
- Se0
- Direction
- highere0
- Comparator
- other cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The tubers of cv. Gute Gelbe were characterized by significantly higher concentrations of N, K, Mg, and S compared with the other cultivars.”
t0“Jerusalem Artichoke”
Claim · model-written summary
Tuber macronutrients other than magnesium were higher in spring.
- Taxon
- Jerusalem ArtichokeHelianthus tuberosust0
- Organ / stage
- tuberse0
- Outcome
- concentrations of macronutrientse0
- Direction
- highere0
- Qualifier
- without Mge0
- Setting
- springe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentrations of macronutrients in the tubers (without Mg) were higher in spring.”
t0“Jerusalem Artichoke”
Claim · model-written summary
Nitrogen fertilization did not change tuber P, K, and Ca concentrations.
- Taxon
- Jerusalem ArtichokeHelianthus tuberosust0
- Treatment
- Nitrogen fertilizatione0
- Outcome
- concentrations of P, K, Cae0
- Direction
- did not cause differencese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen fertilization did not cause differences in the concentrations of P, K, Ca, Mg, and S”
t0“Jerusalem Artichoke”
Claim · model-written summary
Nitrogen fertilization did not change tuber Mg and S concentrations.
- Taxon
- Jerusalem ArtichokeHelianthus tuberosust0
- Treatment
- Nitrogen fertilizatione0
- Outcome
- Mg, and Se0
- Direction
- did not cause differencese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen fertilization did not cause differences in the concentrations of P, K, Ca, Mg, and S”
t0“Jerusalem Artichoke”
Claim · model-written summary
Nitrogen fertilization increased tuber nitrogen concentration.
- Taxon
- Jerusalem ArtichokeHelianthus tuberosust0
- Treatment
- Nitrogen fertilizatione1
- Outcome
- N concentration in tuberse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it increased the N concentration in tubers.”
e1“Nitrogen fertilization did not cause differences”
t0“Jerusalem Artichoke”
The same questions in other papers
fertilization · nutrient: content · Helianthus tuberosus (Jerusalem artichoke)Results agree
6 papers in the same direction as this paper
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