New Term--Biodynamic Farming

Stumbled across a new term, new to me anyway: "biodynamic farming". Apparently there's a conflict between "organic farmers" and "biodynamic farmers". Best I can tell, it's mostly theological (I mean that literally--it reminds me of the differences among the Presbyterians during most of their history). The biodynamic faith is an offshoot, and more religious than plain organic farming.