Claim · model-written summary
High organic matter sites had 39.5% higher total tuber yield.
- Taxon
- potato
Solanum tuberosume1 - Outcome
- total tuber yielde0
- Direction
- highere0
- Value
- 39.5e0
- Comparator
- sites with ≤30 g kg −1 of OMe0
- Setting
- Sites with ≥30 g kg −1 of soil organic matter (OM)e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Sites with ≥30 g kg −1 of soil organic matter (OM) produced total tuber yield, marketable yield, and tuber weight per plant 39.5, 45.2, and 54.9%, respectively, higher than sites with ≤30 g kg −1 of OM”
e1“potato ( Solanum tuberosum L.)”
Title
Yield and quality of three potato cultivars under series of nitrogen rates
Ahmed A. Zaeen; Lakesh K. Sharma; Ahmed Jasim; et al. Agrosystems Geosciences & Environment 2020. doi:10.1002/agg2.20062
Other claims from this paper (9)
- Association High organic matter sites had 45.2% higher marketable yield.
- Association High organic matter sites had 54.9% higher tuber weight per plant.
- Association Tuber specific gravity rose 0.18% at high organic matter sites.
- Intervention effect Total tuber yield for all three cultivars peaked at 168 kg N ha −1.
- Intervention effect At low organic matter sites, 168 kg N ha−1 achieved marketable specific gravity, starch and dry matter content.
- Intervention effect At high organic matter sites, 112 kg N ha−1 achieved marketable specific gravity, starch and dry matter content.
- Observation Russet Burbank yielded significantly more than Shepody and Superior.
- Observation The three cultivars had no significant difference in specific gravity.
- Intervention effect Excess nitrogen above 168 kg ha−1 reduced tuber production and quality.