Schmid, Otto and Ziegler, Katia (2006) Manure fertilizers, intensity - CH Bio Suisse Standards 2005. [Organic rules - Differences between other regulations/standards and EEC No 2092/91]
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The amount of nitrogen and phosphorous input per hectare is strictly limited, in general to max 2.5 LSU/ha or less depending on the crops.
Limits for the nutrients nitrogen and phosphorus provided by different means of fertilisation are restricted by Bio Suisse; for different crops specific limits apply - whereas the sum of phosphorus applied by fertilisation is taken into consideration as well as nitorgen levels. The EU Regulation 2092/91 sets general limits for ferilisation intensity only for nitrogen: maximum application per yeare is 170kg nitrogen/ha.
In order to avoid excessive use of fertilizers and successive contamination of the environment by leached nutrients, BIO SUISSE limits use of both nitrogen and phosphorous to effective levels required by crops.
|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
Pollution risks/non permitted inputs > Environment contaminants (heavy metals etc)
Environmental care/environmental impact > Soil
|Country/Standard:||Europe > Switzerland > BIO SUISSE|
|Deposited By:||INVALID USER|
|Deposited On:||10 May 2006|
|Last Modified:||16 Apr 2010 13:00|
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