Claim · model-written summary
Significantly higher amounts of zinc accumulated in spinach leaves under BD than under IF and CO.
- Taxon
- spinach
Spinacia oleraceae0 - Organ / stage
- leavese0
- Treatment
- BDe0
- Outcome
- zinc (Zn2+)e0
- Direction
- highere0
- Comparator
- IF and COe0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Significantly higher amounts of zinc (Zn2+) accumulated in spinach leaves under BD compared to IF and CO”
Title
Effectiveness of cattle dung biogas digestate on spinach growth and nutrient uptake
Bridget Tshikalange; Olusola Ololade; Chipa Jonas; et al. Heliyon 2022. doi:10.1016/j.heliyon.2022.e09195
Other claims from this paper (6)
- Intervention effect Spinach under cattle dung biogas digestate (BD) showed significantly higher plant height and number of leaves than spinach under the unfertilised control (CO) and inorganic fertiliser (IF).
- Association A linear relationship between leaf numbers and leaf area index was established for spinach (R2 0.691, p < 0.0001).
- Intervention effect Spinach plants under cattle dung biogas digestate produced significantly the longest roots, followed by inorganic fertiliser plants.
- Intervention effect Inorganic fertiliser plants produced more biomass per rooting depth (0.85 g cm−1) than BD (0.61 g cm−1) and CO (0.35 g cm−1).
- Observation Among macronutrients in spinach leaves, only potassium differed significantly, with IF 8.6 g kg−1, BD 6.8 g kg−1 and CO 6.7 g kg−1.
- Recommendation The authors conclude that fertilising spinach with BD improves growth and development just as much as IF.