Advanced biological farming
Zimmer, Gary F. Zimmer, Gary F.
Advanced biological farming - Texas: Acres U.S.A, 2011 - xiv, 241p.
9781601730190
Chemistry
Biological efficiency in agriculture
Soil testing
Fertilizer application
Tillage
631.584
Advanced biological farming - Texas: Acres U.S.A, 2011 - xiv, 241p.
9781601730190
Chemistry
Biological efficiency in agriculture
Soil testing
Fertilizer application
Tillage
631.584