Biologische teelt op een zuidelijke zandgrond: opbrengst, bemesting, bodemkwaliteit en sti

From 2001 to 2016, this dataset presents results from an organic farming system at the WUR Vredepeel test location, focusing on crop yield, soil quality, fertilization, and nitrogen leaching. The organic system shows yields averaging 6% below target, good soil fertility, and nitrate concentrations in groundwater below the Nitrates Directive limit, though nutrient surpluses for nitrogen, phosphate, and potassium exceed target values. The data was compiled by J.J. de Haan of Wageningen University & Research.

Use Cases

• Compare organic vs. conventional crop yields based on reported yield gap data.
• Analyze nutrient surpluses and environmental impact based on nitrogen, phosphate, and potassium balance data.
• Model long-term soil organic matter trends based on the reported increase in organic matter content.
• Assess groundwater nitrate pollution risks based on measured nitrate leaching concentrations.

Strengths

• Covers a 15-year time series from 2001 to 2016.
• Reports specific quantitative findings, such as a 6% average yield gap and nitrate concentrations below regulatory limits.
• Focuses on a controlled, long-term experimental system at a recognized research location.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• The description notes that changes in yield, soil quality, and leaching over time were not measured, except for organic matter.

Provenance

Source

Wageningen University & Research

Collection Method

Results from a long-term organic farming system experiment.

Time Range

2001-2016

Geography

Vredepeel test location, Netherlands (southern sandy soil)