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Boerenkool : het kan vriezen of dooien \ Boer en tuinder : weekblad van de Katholieke Nederlandse boeren en tuindersbond K.N.B.T.B. [Artikel]
Schellekens, A. \ 1986
In het kort iets over de bemesting, teeltplanning en prijsvorming bij boerenkool. Tijdens flinke vorstperioden kan de geldelijke opbrengst tweemaal zo hoog worden als daarvoor
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