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西德农民安塞姆·利施卡建立起一套打破常规的耕作制度。收获后,他借助刀形旋转耙将脱粒后剩下的碎秸秆搅和到表层土壤里。然后蚯蚓开始工作。凡经过它们肠道的东西,在春季来临之前自动腐烂。利施卡对甜菜茎块、油菜和豌豆茎也是这样处理的。
West German farmer Anselm Shishka established a set of rules to break the tillage system. After harvesting, he scraped the straw remaining after threshing into the surface soil by means of a knife-shaped rotary harrow. Earthworms then start working. Everything that passes through their gut automatically decays before the spring season. The same applies to the beet stems, rape and pea stems.