Geselecteerd op:

Guelle : ausbringungstechniken im Vergleich \ Bio-land : Fachzeitschrift fuer den Organisch-Biologischen Land- und Gartenbau [Artikel]
Gudat, J. \ Bless, H - G \ 1991
Manure application techniques are compared on their exactness of dosage, which is important for the output of ammonia
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