Managing Livestock Manures 4: Managing Manure on Organic Farms

Convention used in this booklet

Manure all animal manures, no matter how treated (FYM, slurries and composted manures)

Solid manure FYM and poultry manures that have not received active composting

Slurry a mixture of faeces, urine and water, with no significant quantities of bedding (<10% dry matter)

Composted manure manures that have been actively composted to produce a dark, friable, stabilised, high dry matter final product

N=nitrogen, P=phosphorus, K=potassium. P and K nutrient values are normally expressed as their oxides: phosphate, P2O5 or potash, K2O (Appendix III has conversion factors)

Important forms of N include: ammonia (NH3), a gas; ammonium (NH4 +), the ionic form found in soil, but rapidly converted to nitrate (NO3 -); nitrous oxide (N2O), a gas.

Although guidance in this booklet is considered best practice, if considering any significant change in manure management, always consult your Sector Body.

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