FertiBioSol Project - Compost by MSV Normandy
As part of a previous call for projects (PEI, 2017 call for projects), three partner organizations (BioPousses, Sileban, and CFPPA Coutances) organized around the SOCLE Innovation AB project to experiment with and disseminate innovative techniques adapted to market gardening and vegetable farming operations in Normandy. The objective was to provide technical and economic benchmarks on techniques for soil fertility management of biological soils and to address the hardship mainly linked to manual weeding tasks in market gardening. The FertiBioSol project continues SOCLE Innovation AB on the theme of managing biological soil fertility by proposing a broader scale of work at the farm level and adopting a prophylactic approach to pest management.
Compost production
Composting is an aerobic process that transforms organic waste into a fertilizing, stable material rich in humus. Organic waste is often a mixture of livestock effluents and straw, green waste, sewage sludge, bio-waste, ...
Steps of green waste shredding :
- Reception, quality control and sorting
- Shredding
- Fermentation and maturation
- Screening and storage
Compost characteristics
Humus formation for 10 t dry compost :
DM compost = 10 t X K1 = 50 % = Humus = 5 t
Analyses of horse manure compost from the ferme des semis sauvages :
| Samples | Compost | |
|---|---|---|
| Agronomic value characterization | DM % raw | 62.6 |
| OM % dry | 39.6 | |
| pH water | 9.4 | |
| General composition | C / N total | 12.6 |
| Total N g/kg dry | 15.7 | |
| Major elements | Phosphorus g/kg dry | 6.9 |
| Potassium g/kg dry | 12.8 | |
| Magnesium g/kg dry | 4.8 | |
| Calcium g/kg dry | 50.9 | |
| Isohumic coefficient K1 (%) | 50 - 60 | |
Supply in market gardening
Producers :
| Producers | The NF U 44-051 standard for organic amendments usable in ORGANIC guarantees threshold efficiency values as well as product safety (composition, pollutant content, ...) | Purchase cost |
|---|---|---|
|
0 to 50 €/ t depending on delivery included or not |
Use
Granulometry
There are different compost granulometries. Depending on its use and spreading method, the granulometry is adapted accordingly.
Logistics
Simple spreading or with incorporation :
- Spreader
- Manual distribution
- Modified sand spreader
| Farms | Trial area (in ha) | Quantity used (in t/ha) | C/N | Nitrogen total (% DM) | Nitrogen value (kg N / t compost) |
|---|---|---|---|---|---|
| Semis sauvage
Horse manure compost |
0.15 | 350 | 12.6 | 1.57 | 9.8 |
This article was written thanks to the kind contribution of Living Soil Market Gardening Normandy & Ile-de-France.
