Nutrients in organic farming - are there advantages from the exclusive use of organic manures and untreated minerals?/
Kirchmann Holger and Ryan Megan H
Nutrients in organic farming - are there advantages from the exclusive use of organic manures and untreated minerals?/ Holger Kirchmann and Megan H Ryan - Australia Department of Soil Sciences 2004 - 16 p. : 30 cm.
631.86 KIR
Nutrients in organic farming - are there advantages from the exclusive use of organic manures and untreated minerals?/ Holger Kirchmann and Megan H Ryan - Australia Department of Soil Sciences 2004 - 16 p. : 30 cm.
631.86 KIR