Quantity :1
Title: Can food plants grown hydroponically be considered organically grown : A commentary.
Author : Grotzke, Heinz
Subject:
biodynamic organic biological and chemical processes
Material : biotech
Serial Title : Organic Matters
Publisher : Organic Producers Trade Association (OPTA),
Publication Date : October-December 1999
PR-AMS
1999
BIC408
SEARCA Library
Printed