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Comifer
What is Comifer
Members of Comifer
Activities
Les rencontres...
Joining Comifer
Meetings
2017 edition
2015 edition
Working groups
Nitrogen and sulfur
Liming
Spreading
PK and Mg
PRO
Publications
The Comifer brochure
Co-editions
The acts
The teaching materials
The Bibliography
The Comifer letter
Letter n°10
Nitrogen balance
Nitrogen fertilization
Crop Sheets
Items from the nitrogen balance forecast
Needs proportional to performance (general)
Standard requirements by area
Needs of the potato by production basin
Bassin n°1
Bassin n°2
Bassin n°3
Bassin n°4
Bassin n°5
Bassin n°6
Additional References
Regulatory recognition of dose calculation tools
Conference
Members
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Home
Comifer
What is Comifer
Members of Comifer
Activities
Les rencontres...
Joining Comifer
Meetings
2017 edition
2015 edition
Working groups
Nitrogen and sulfur
Liming
Spreading
PK and Mg
PRO
Publications
The Comifer brochure
Co-editions
The acts
The teaching materials
The Bibliography
The Comifer letter
Nitrogen balance
Nitrogen fertilization
Crop Sheets
Items from the nitrogen balance forecast
Additional References
Regulatory recognition of dose calculation tools
Conference
Members
