The use of manures and mineral fertilisers in organic agriculture
The use of manures and mineral fertilisers in organic agriculture
- Soil Association
- Soil Association Technical Booklet, No. 4 .
Organic farming
Fertilizers
Manures
Fertilizers, manures, soil conditioners
631.86
Organic farming
Fertilizers
Manures
Fertilizers, manures, soil conditioners
631.86