تفسیر دوره کشاورزی رودولف اشتاینر توسط دکتر پاول دبلیو شارف

Dr. Scharff covers biodynamic methods, philosophy, and esoteric foundations, along with in-depth discussions on specific biodynamic preparations.

This book is ideal for anyone interested in or practicing biodynamic farming or gardening, providing valuable insights and guidance.

JPI lists nine core biodynamic preparations: BD 500 horn manure, a soil-directed spray; BD 501 horn silica, a fine foliar spray; BD 502–507, the six compost preparations; and BD 508 horsetail (Equisetum arvense), used as a fresh-tea foliar or fermented-tea soil spray. Growers use these small quantities of specially prepared natural materials alongside good organic and ecological practices to support living soil, compost, and plant vitality. Each preparation has its own amount, mixing, target, and timing; follow the current JPI instructions: https://www.jpibiodynamics.org/pages/making-using-bd-preps

This book is available directly from The Josephine Porter Institute on this product page.