Fryslân

The Netherlands

Mts van der Bos-Weidenaar

Growing silicon

This experiment investigates whether growing silicon-rich crops can improve soil silicon availability and increase crop resilience, particularly in potato systems. Silicon strengthens plant cell walls, helping crops resist pests and diseases, potentially reducing reliance on plant protection products.

The study focuses on oats and flax, crops known for high silicon uptake. It tests whether cultivating them as either main crops or green manure can enhance silicon levels in the soil for subsequent crops. After harvest or incorporation, their residues (especially roots and straw, which are silicon-rich) are expected to return silicon to the soil.

The experiment compares different rotations and management strategies, including full crop growth versus green manure incorporation, to determine the most effective way to improve soil silicon availability and support more sustainable, lower-input potato production.

Duration of the pilot 24 Months

Type of Farm

Arable

Type of Soil

Clay Soil

Crops Involved

Potatoes

Practices

  • Use minimal or no tillage

  • Practice diversified crop rotation

  • Use cover crops (various options)

  • Use a system that minimises the use of pesticides, for example through mechanical weed control, biological pest control, etc.

  • Grow silicon-rich crops and green manure