Phosphorus Release Kinetics in a Rice-Wheat System from a 19-Year Field Experiment

A research document analyzes phosphorus stabilization and release in soil aggregates from a 19-year long-term rice–wheat experiment at ICAR-IIFSR, Modipuram, India. The study evaluates the effects of contrasting nutrient management strategies, aggregate sizes, and hydrothermal conditions on phosphorus storage and mineralization dynamics. It was authored by Sunita Kumari Meena and last updated in May 2026.

Use Cases

• Modeling phosphorus mineralization rates based on described hydrothermal regimes and nutrient treatments.
• Comparing the long-term impact of integrated versus mineral fertilizer management on aggregate-associated phosphorus storage.
• Analyzing trade-offs between phosphorus stabilization and release in rice-wheat systems as described in the study.

Strengths

• Based on a 19-year long-term field experiment, providing longitudinal insights.
• Reports specific quantitative findings, such as macro-aggregates storing 20–25% more phosphorus than micro-aggregates.
• Compares multiple nutrient management strategies, showing integrated management enhanced phosphorus concentrations by ~20–40%.

Limitations

• The primary data file is a DOCX document (483.0 KB); underlying tabular or time-series data is not directly accessible.
• Row and column counts for any underlying data are unknown, limiting suitability assessment for computational analysis.
• Column-level documentation is absent; field semantics must be inferred from the textual description.

Provenance

Source

figshare, authored by Sunita Kumari Meena.

Collection Method

Data likely originates from a controlled, long-term agricultural field experiment.

Time Range

The experiment spanned 19 years; specific start and end years are not provided.

Freshness

Last updated 2026-05-20 05:50:46.

Geography

ICAR-IIFSR, Modipuram, India.