Schleswig-Holstein: Dispute Over Fertilizing Frozen Ground & Water Protection

A recent directive from Cornelia Schmachtenberg, the Minister of Agriculture in Schleswig-Holstein, regarding fertilizer application during winter conditions has sparked debate among environmental organizations and political parties. According to reports in the “Bauernblatt,” Minister Schmachtenberg indicated that soil which is superficially frozen in the morning but thaws during the day should not be considered “frozen ground.”

Shifting Interpretations of Fertilizer Regulations

This interpretation aligns Schleswig-Holstein with the approach taken by some other German states concerning fertilizer regulations. Existing regulations prohibit the spreading of fertilizers on frozen or waterlogged soil to protect waterways. The Agriculture Ministry clarified that fertilizer application is permissible only when it can be ensured that nutrients will not leach into bodies of water and that the requirements of the fertilizer ordinance are met. The ministry stated that authorities monitor the implementation of these fertilizer guidelines to prevent nutrient loss.

Did You Know? The current debate centres on the definition of “frozen ground,” with a previous version of the fertilizer ordinance having a different interpretation that was later discarded.

Concerns Raised by Environmental Groups

The Naturschutzbund (NABU) Schleswig-Holstein, a conservation organization, voiced criticism and questioned the legality of the Minister’s interpretation. Alexander Schwarzlose, the state chairman of NABU, noted that this approach isn’t new, having been considered in a prior version of the fertilizer ordinance. However, he emphasized that the legislative body deliberately rejected this understanding to comply with European legal requirements for water protection.

Fritz Heydemann, a NABU agricultural expert, warned that even partially frozen soil may not fully absorb manure, leading to runoff into waterways, especially on sloped land, and potentially increasing nitrate levels in groundwater.

Political Reactions and Potential Next Steps

Opposition to the Minister’s stance also emerged from within the governing coalition. Silke Backsen, a Green Party member of the state parliament, expressed doubt about the compatibility of this interpretation with EU law. She argued for strengthening, rather than weakening, water protection standards and called for improvements to fertilizer laws at the federal level.

Sandra Redmann, an SPD member of parliament, criticized what she characterized as a policy reversal by the Ministry. She pointed out that, as recently as October 2025, the Ministry indicated that such a change was not planned. She stated that relaxing fertilizer regulations in a region already struggling with nitrate problems could further harm water quality.

Expert Insight: The core of this dispute lies in balancing agricultural practices with environmental protection, particularly the need to safeguard water resources from nutrient pollution. The differing interpretations highlight the complexities of implementing environmental regulations in a practical context.

However, Rixa Kleinschmit, a CDU parliamentarian, supported the Ministry’s position, stating that considering slightly frozen ground as suitable for fertilization is professionally justified, as plants can effectively absorb nutrients at that time. She also suggested that better ground conditions could minimize soil damage.

Frequently Asked Questions

What is the central issue in this debate?

The debate revolves around the interpretation of what constitutes “frozen ground” for the purposes of fertilizer application regulations, specifically whether soil that thaws during the day should be considered frozen.

What are the potential consequences of applying fertilizer to partially frozen ground?

According to NABU, applying fertilizer to partially frozen ground could lead to nutrient runoff into waterways, potentially increasing nitrate levels in groundwater.

What is the position of the Agriculture Ministry?

The Agriculture Ministry maintains that fertilizer can be applied as long as it meets the requirements of the fertilizer ordinance and ensures nutrients do not enter waterways.

further clarification from the Ministry will be sought by concerned parties. The issue could also lead to increased scrutiny of fertilizer practices in Schleswig-Holstein. A legal challenge to the Minister’s interpretation is also a possible next step, though its outcome remains uncertain. The future of fertilizer regulations in the region may depend on ongoing dialogue between agricultural stakeholders and environmental advocates.

How can agricultural practices be balanced with the need to protect our vital water resources?