Abstract
Nitrogen (N) applied as a unique and relatively high rate can increase soil salinity and lead to potato yield loss. Thus, the aim of this work was to determine the effect of N fertilizer application mode on potato tuber yield and on morphological descriptors of shoot and subterranean organs throughout the potato plant cycle of the cultivars Agata and Asterix. Three treatments were evaluated: T0 (without N), T1 (50% of the N rate at planting time + 50% of N at 22 days after the plant emergency), and T2 (single N rate at planting). The N rate was 220 kg/ha, as urea. Two experiments were simultaneously installed in the field, each corresponding to each cultivar. Applying urea at an inadequate time leads to a 4.3% decrease in crop profitability. For Agata, it is more appropriate splitting urea application and for Asterix it is better not to split the N application. Compared to the unfertilized control, for both cultivars, a suitable mode of N application provided an increase in stem and leaf dry weight and a decrease in stoloniferous root dry weight. Regardless of cultivars, the highest value of dry weight was observed in the tuber, followed by leaf, stem, roots, and stolon.
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Claims 6
Claim · model-written summary
Inadequately timed urea reduced crop profitability by 4.3%.
- Taxon
- Potato
Solanum tuberosumt0 - Treatment
- Applying urea at an inadequate timee0
- Outcome
- crop profitabilitye0
- Direction
- decreasee0
- Value
- 4.3%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Applying urea at an inadequate time leads to a 4.3% decrease in crop profitability.”
t0“Potato Tuber Yield”
Claim · model-written summary
Splitting urea application was more appropriate for Agata.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Agatae0
- Outcome
- splitting urea applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For Agata, it is more appropriate splitting urea application and for Asterix it is better not to split the N application.”
t0“potato tuber yield”
Claim · model-written summary
Not splitting nitrogen application was better for Asterix.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Asterixe0
- Outcome
- not to split the N applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For Agata, it is more appropriate splitting urea application and for Asterix it is better not to split the N application.”
t0“potato tuber yield”
Claim · model-written summary
Suitable nitrogen application increased stem and leaf dry weight relative to unfertilized controls in both cultivars.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- suitable mode of N applicatione0
- Outcome
- stem and leaf dry weighte0
- Direction
- increasee0
- Comparator
- unfertilized controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the unfertilized control, for both cultivars, a suitable mode of N application provided an increase in stem and leaf dry weight and a decrease in stoloniferous root dry weight.”
t0“potato tuber yield”
Claim · model-written summary
Suitable nitrogen application decreased stoloniferous root dry weight relative to unfertilized controls in both cultivars.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- suitable mode of N applicatione0
- Outcome
- stoloniferous root dry weighte0
- Direction
- decreasee0
- Comparator
- unfertilized controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the unfertilized control, for both cultivars, a suitable mode of N application provided an increase in stem and leaf dry weight and a decrease in stoloniferous root dry weight.”
t0“potato tuber yield”
Claim · model-written summary
Tuber dry weight was highest, followed by leaf, stem, roots, and stolon.
- Taxon
- potatoSolanum tuberosumt0
- Organ / stage
- tubere0
- Outcome
- dry weighte0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regardless of cultivars, the highest value of dry weight was observed in the tuber, followed by leaf, stem, roots, and stolon.”
t0“potato tuber yield”
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See all 51 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.