Lettuce Growth and Phosphorus Efficiency Under Humic Substance Treatments

A study by Santiago Atero-Calvo, published on figshare in 2026, evaluated the effects of a leonardite-derived humic substance biostimulant on lettuce (Lactuca sativa L.) under high and low phosphorus conditions. The dataset likely contains measurements of shoot biomass, chlorophyll content, root biometric traits, phosphorus acquisition and utilization efficiency, acid phosphatase activity, and phenolic profiles. The data supports research into sustainable nutrient management strategies for agriculture.

Use Cases

• Modeling the relationship between humic substance application and phosphorus use efficiency based on reported PAE, PUtE, and PUE metrics.
• Analyzing the effect of root versus foliar biostimulant treatments on plant physiological traits like shoot biomass and root volume.
• Investigating correlations between antioxidant capacity, total phenolic content, and tolerance to phosphorus deficiency.
• Comparing plant metabolic reprogramming under high (1 mM) and low (0.2 mM) phosphorus regimes.

Strengths

• Data is derived from a controlled experiment with specific phosphorus concentrations (1 mM and 0.2 mM) and biostimulant doses (e.g., R2: 0.60 mL L⁻¹).
• Measures multiple integrated physiological and metabolic responses, including phosphorus efficiency indices, root traits, chlorophyll, and phenolic profiles.
• Published under a permissive CC-BY-4.0 license, facilitating reuse.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The dataset is very small (27.2 KB), indicating a limited scope likely focused on summary results from a single study.

Provenance

Source

figshare

Collection Method

Experimental data from a study evaluating humic substance treatments on lettuce.

Freshness

Last updated 2026-05-28 04:43:19; freshness should be verified.