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Manures & Supplementary Crop Nutrients
On what basis do the standards permit the importation of manures from non-organic sources?
Imported, conventional manures should not form the basis of the crop nutrient supply on organic farms - the rotation (in particular legumes) and an efficient internal nutrient cycling system within the farm, should be the basis of nutrient supply.
Which non-organic poultry and pig manures are allowed to be brought in?
Under the conditions set out in question: On what basis do the standards permit the importation of manures from non-organic sources?
Which non-organic poultry and pig manures are not allowed to be brought in under any circumstances?
Manure from animals fed GM feedstuffs.
What are the required composting or stockpiling periods for non-organic manures?
These are the required composting or stockpiling periods for non-organic manures;
Why is composting desirable, particularly for brought-in manures?
Composting facilitates the destruction of most weed seeds, pathogens, chemical residues and antibiotics.
What is the maximum application rate for manures?
The equivalent to 170kg of nitrogen per year/hectare of the whole agricultural area of the unit for the various categories of livestock.
What level of approval is given for nutrient inputs such as ground limestone and rock phosphate?
These are classed as permitted fertilisers.
What level of approval is given for nutrient inputs such as sulphate of potash, sulphur, trace elements?
Approval for the use of these products is restricted.
What level of approval is given for nutrient inputs such as muriate of potash, superphosphates and Fibrophos?
These products are prohibited and therefore not allowed to be used under organic standards.