Complex sentence: In the 1920s, a number of agricultural movements sprung up that wanted to counter the effect of industrialization and globalization of food production-the Demeter group has the same origin in that time which is based on the biodynamic agriculture concept of Rudolf Steiner.
Split into simpler sentences: In the 1920s, a number of farmers wanted to counter the effect of industrialization and globalization of food production movements. For example, Demeter was a group based on the biodynamic agriculture concept of Rudolf Steiner.