| http://www.w3.org/ns/prov#value | - The invention also has obvious advantages for horticulturists in terms of efficient and simple routines as well as flexibility and financial and environmental issues.It is possible to mix growing media and gypsum in practically any conditions, for example from 1:99 to 90:10, and obtain deformation-resistant growing media, which may be designed into any requested form???entirely in accordance with
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