Frank Hendrikus Peter Janssen,Daan Louis De Kubber
申请号：
US14367338
公开号：
US20150027052A1
申请日:
2012.12.21
申请国别(地区):
US
年份:
2015
代理人:
摘要：
A man-made vitreous fibre (MMVF) plant growth substrate is provided. The substrate has properties including a volume of 3 to 20 litres, two layers of differing density. The height of the two layers lie in the ranges of 25 mm to 50 mm and 50 mm to 100 mm This is found to provide a substrate which allows excellent control of the water and/or nutrient contents within the substrate when used for plant growth.
