the invention is a method and use of the subject kasvatusmateriaalin batches and kasvatusmateriaali when in plant breeding, such as vegetables, juuresten, berries, fruit, mushrooms,flowers and / or equivalent, cultivation for kasvatusmateriaali accumulating organic and / or inorganic materials irtomateriaaliseokseksi or a single kasvualustaksi.kasvatusmateriaali compiling the karkearakenteisesta organic runkomateriaalista (1) whose particle size is more than 5mm, sopivimmin 10 - 15 mm, and finely tu00e4ytemateriaalista (2),which partik15 kelikoko is less than 0,5mm, sopivimmin 0,1, 0,3mm.
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