Abstract
High rates of phosphate fertilizers are applied to potato (Solanum tuberosum L.), which may cause antagonistic interactions with other nutrients and limit crop yields when over-supplied. The purpose of this study was to evaluate the influence of phosphorus (P) levels in nutrient solution on P use efficiency, nutritional status and dry matter (DM) accumulation and partitioning of potato plants cv. Ágata. The experiment was carried out in a greenhouse, arranged in a completely randomized block design with four replications. Treatments consisted of seven P levels in nutrient solution (0, 2, 4, 8, 16, 31, and 48 mg L-1). Plants were harvested after 28 days of growth in nutrient solution, and separated in roots, stems and leaves for evaluations. The treatment effects were analyzed by regression analysis. Phosphorus levels of up to 8 mg L-1 increased the root and shoot DM accumulation, but drastically decreased the root/shoot ratio of potato cv. Ágata. Higher P availability increased P concentration, accumulation and absorption efficiency, but decreased P use efficiency. Higher P levels increased the N, P, Mg, Fe, and Mn concentrations in roots considerably and decreased K, S, Cu, and Zn concentrations. In shoot biomass, N, P, K, and Ca concentrations were significantly increased by P applied in solution, unlike Mg and Cu concentrations. Although higher P levels (> 8 mg L-1) in nutrient solution increased P concentration, accumulation and absorption efficiency, the DM accumulation and partitioning of potato cv. Ágata were not affected.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
Phosphorus up to 8 mg L-1 increased root and shoot dry matter accumulation.
- Treatment
- Phosphorus levels of up to 8 mg L-1e0
- Outcome
- root and shoot DM accumulatione0
- Direction
- increasede0
Not reportedTaxonComparator
Verbatim
e0“Phosphorus levels of up to 8 mg L-1 increased the root and shoot DM accumulation”
Claim · model-written summary
Phosphorus up to 8 mg L-1 decreased the potato root/shoot ratio.
- Taxon
- potato
Solanum tuberosume0 - Material
- Ágatae0
- Treatment
- Phosphorus levels of up to 8 mg L-1e0
- Outcome
- root/shoot ratioe0
- Direction
- drastically decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus levels of up to 8 mg L-1 increased the root and shoot DM accumulation, but drastically decreased the root/shoot ratio of potato cv. Ágata”
Claim · model-written summary
Higher phosphorus increased phosphorus concentration, accumulation and absorption efficiency.
- Treatment
- Higher P availabilitye0
- Outcome
- P concentration, accumulation and absorption efficiencye0
- Direction
- increasede0
Not reportedTaxonComparator
Verbatim
e0“Higher P availability increased P concentration, accumulation and absorption efficiency”
Claim · model-written summary
Higher phosphorus decreased phosphorus use efficiency.
Not reportedTaxonComparator
Verbatim
e0“Higher P availability increased P concentration, accumulation and absorption efficiency, but decreased P use efficiency”
Claim · model-written summary
Higher phosphorus increased root N, P, Mg, Fe and Mn concentrations.
Not reportedTaxonComparator
Verbatim
e0“Higher P levels increased the N, P, Mg, Fe, and Mn concentrations in roots considerably”
Claim · model-written summary
Higher phosphorus decreased root K, S, Cu and Zn concentrations.
Not reportedTaxonTreatmentComparator
Verbatim
e0“decreased K, S, Cu, and Zn concentrations”
Claim · model-written summary
Applied phosphorus significantly increased shoot N, P, K and Ca concentrations.
Not reportedTaxonComparator
Verbatim
e0“In shoot biomass, N, P, K, and Ca concentrations were significantly increased by P applied in solution”
Claim · model-written summary
Applied phosphorus did not increase shoot Mg and Cu concentrations.
- Outcome
- Mg and Cu concentrationse0
Not reportedTaxonTreatmentComparatorDirection
Verbatim
e0“unlike Mg and Cu concentrations”
Claim · model-written summary
Phosphorus above 8 mg L-1 did not affect dry matter accumulation or partitioning.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- higher P levels (> 8 mg L-1) in nutrient solutione0
- Outcome
- DM accumulation and partitioninge0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher P levels (> 8 mg L-1) in nutrient solution increased P concentration, accumulation and absorption efficiency, the DM accumulation and partitioning of potato cv. Ágata were not affected”
The same questions in other papers
phosphorus · growth · Solanum tuberosum (potato)Positive and negative results
14 papers in the same direction as this paper · 6 in the opposite direction · 1 reporting no difference from an alternative
- positive
- negative
- negative
18 papers more in this group
See all 22 papers →fertilization · growth · Solanum tuberosum (potato)Positive and negative results
17 papers in the same direction as this paper · 122 in the opposite direction
- positive
- positive
- positive
136 papers more in this group
See all 140 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.