Organic Rules and Certification

Fertilization, general requirements - US NOP 2002

Huber, Beate (2005) Fertilization, general requirements - US NOP 2002. [Organic rules - Differences between other regulations/standards and EEC No 2092/91]

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The producer must manage crop nutrients and soil fertility through rotations, cover crops, and the application of plant and animal materials. The producer must manage plant and animal materials to maintain or improve soil organic matter content avoiding contamination. Approved fertilizers: (1) Raw animal manure (subject to further restrictions) (2) Composted plant and animal materials (3) Uncomposted plant materials (4) A crop nutrient or soil amendment included on the national list of synthetic substances allowed for use in organic crop production (6) A mined substance of low solubility (7) A mined substance of high solubility, provided that the substance is used in compliance with the conditions established on the national list of nonsynthetic materials prohibited for crop production. (Article § 205.203 and § 205.205)


There are only differences regarding manure and compost (see these sections) compared with EU Regulation 2092/91.


A producer of an organic crop must manage soil fertility, including tillage and cultivation practices, in a manner that maintains or improves the physical, chemical, and biological condition of the soil and minimises soil erosion.

EU Regulation

Annex I. Principles of organic production and processing > A.Plant and plant products > Fertilizing - Annex I A2

Item type:Organic rules - Differences between other regulations/standards and EEC No 2092/91
Subjects:Crop production > Fertilisers
Crop production > Soil fertility and biological activity
Principles:Ecological principle
Principle of health
ID Code:499
Deposited On:20 Nov 2005
Last Modified:16 Apr 2010 13:00

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