# Prepared 500 Horn Manure Preparation (BD 500P — Alex Podolinsky Method) — Spray Preparation

## At a Glance:

### One unit is 1/4 cup.  
One unit treats 1 acre.

**What it does:**  
Vitalizes the soil and stimulates root growth. Builds humus, enlivens soil microbial life, and helps ground the plant in the forces of growth and reproduction.

**How to use:**  
Stir for one hour. **in 3–5 gallons of water,** spray out over soil preferably in the afternoon.

**Ingredients:**  
Cow manure, BD 502–507  

### 🌱 [Learn More about BD 500 Horn Manure](https://go.jpibd.org/guide-bd-500 "BD500 Horn Manure: Nourishing the Soil with Cosmic Cow Wisdom")

## Product Details:

Prepared BD 500 stimulates seed germination, root growth, and humus formation. Use when planting, transplanting or turning in cover crops.   

This preparation was created by Alex Podolinsky (Australia). In Australian practice, although Prepared 500 was initially used only after two years of application of regular BD 500, further experience now calls for its use from the very beginning of conversion to biodynamic agriculture in virtually every case. This contains all the biodynamic preparations including 500 horn manure, yarrow, chamomile, stinging nettles, oak bark, dandelion, and valerian.

* * *

**For additional information, visit: [Preparation resources](https://go.jpibd.org/resources-preparations); [BD 500 application instructions](https://go.jpibd.org/instructions-bd-500)**

**Additional Article: [BD 500: Reflections on Making BD 500](https://go.jpibd.org/article-bd-500-reflections)**

**Please note: Quantities over 1 may be bagged together.**

## Details

- **Price:** 14.17 USD
- **Vendor:** The Josephine Porter Institute
- **Type:** Spray Preparations
- **Tags:** farming, gardening, orchard, soil remedies, Spray Preparations

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 14.17 USD | In stock |

## Images

- 'Prepared' 500 Horn Manure Preparation (BD 500P – Alex Podolinsky Method) Biodynamic Horn Manure PLUS all Compost Preparations - Spray Preparation - The Josephine Porter Institute
- Cow Horns - The Josephine Porter Institute

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> Source: [The Josephine Porter Institute](https://www.jpibiodynamics.org/products/biodynamic-horn-manure-preparation)
> Updated: 2026-08-10