PKM has committed itself to the the international environmental registration system MPS - Milieu Programma Sierteelt - which assesses the resource consumption of the production in an overall perspective and makes demands in respect of consumption of energy, nutrition and pesticides as well as waste handling. Since 1 June 2004, PKM has been classified in the best category as an A-rated nusery.
All the same, the use of pesticides and growth retarder is inevitable. Hence, many forces are spend on research
