发明名称 Plant culture substrate - is homogeneous mixture of mineral wool and clay granules
摘要 The planting substratum is for hydroponic planting with a predominant volume of clay granulate. The substrate, in homogenous mixture has a volume fraction up to 30% of mineral used with a synthetic adhesive with a pore content of over 90%. The mineral used is provided as a granulate of a grain size of the same size as the clay grains.
申请公布号 DE2915370(A1) 申请公布日期 1980.10.23
申请号 DE19792915370 申请日期 1979.04.14
申请人 STELZNER,WILHELM 发明人 STELZNER,WILHELM
分类号 A01G31/00 主分类号 A01G31/00
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