# Biodynamic Pfeiffer™ Field and Garden Spray ### One unit is 2 ounces. One unit treats up to 1 acre. ## At a glance: **What it does:** Supports soil life and field vitality, especially on land that hasn’t yet received regular BD 500 and BD 501. Useful for farms beginning biodynamic work or those needing extra help restoring balance. **How to use:** Moisten one unit in a flat pan or dish with just enough water to make it pasty. Allow it to activate for 12–16 hours or overnight. Dilute the paste in the amount of water your sprayer is calibrated to apply over one acre. Spray close to the soil during the latter part of the day on a calm day. **Ingredients:** Dried blend containing BD 500 Horn Manure and BD 502–507 Compost Preparations, plus beneficial soil organisms and other agents. 🌾 [Learn More about Pfeiffer Field and Garden Spray](https://go.jpibd.org/guide-pfeiffer-spray "Biodynamic Pfeiffer Field and Garden Spray") ## Product Details: Among our most popular selling items, Pfeiffer™ products were originated in the 1940’s by Dr. Ehrenfried Pfeiffer with the purpose of helping to make biodynamics more accessible to home gardeners, conventional farmers, and composters. JPI is the exclusive owner of these proprietary formulas. Ehrenfried Pfeiffer found that the use of the Field and Garden Spray **in only six weeks increased available nitrogen in the soil by 500%, phosphorus by 833% and potassium by 260%.** More information can be found in Pfeiffer's [three-volume series of lectures.](https://jpibiodynamics.us14.list-manage.com/track/click?u=82358e3c9065002f0f608eb3a&id=dd552b7090&e=b18cdbf107) The Pfeiffer™ Biodynamic (BD) Field & Garden Spray contains all components included in the Compost Starter plus additional amount of BD 500. Use when planting or transplanting to stimulate germination and root growth and when turning in cover crops to increase soil microorganisms that aid in decomposition and transformation to stable humus. It may also be used on houseplants or as a bath for seeds and bulbs, as described in the handout. One unit may be divided to treat smaller areas. It is an excellent treatment for gardens, pasture, and hayfields of all sizes. **Composition of the Pfeiffer™ BD Field and Garden Spray** This potent spray contains the biodynamic agricultural preparations BD #500, #502, #503, #504, #505, #506, and #507, which give this product its unique effectiveness. It stimulates and attracts a full range of soil micro-flora and fauna beneficial to accelerate the breakdown of organic matter without tying down nitrogen or other delaying actions. Following such breakdown there is a subsequent build up into helpful humus compounds. Properly activated for use, each ounce can yield more than 5.6 billion CFU’s (colony forming units) of beneficial organisms. **Benefits of the Pfeiffer™ BD Field and Garden Spray** The BD Field ; Garden Spray aids humus formation in organic materials already in the topsoil. It should be used when planting and transplanting to stimulate germination and root growth, and when turning in cover crops to aid the transformation of organic materials into humus. One unit of BD Field & Garden Spray treats one acre of land. It comes in single or multiple units but one unit is the smallest quantity we can ship. If your garden is less than one acre, activate only 1 level teaspoon (1 tsp.). This will give coverage for 1,000 square feet. Activation of 1 level tablespoon (1 Tbsp.) will cover 3,000 square feet. * * * **Pfeiffer Field & Garden Spray Detailed Usage Instructions: [English](https://go.jpibd.org/instructions-pfeiffer-spray) | [Chinese](https://go.jpibd.org/instructions-pfeiffer-spray-zh)** **Please note: Quantities over 1 may be bagged together.** **Learn more:** [Pfeiffer Field & Garden Spray guide](https://go.jpibd.org/guide-pfeiffer-spray) ### One unit is 2 ounces. One unit treats up to 1 acre. ## At a glance: **What it does:** Supports soil life and field vitality, especially on land that hasn’t yet received regular BD 500 and BD 501. Useful for farms beginning biodynamic work or those needing extra help restoring balance. **How to use:** Moisten one unit in a flat pan or dish with just enough water to make it pasty. Allow it to activate for 12–16 hours or overnight. Dilute the paste in the amount of water your sprayer is calibrated to apply over one acre. Spray close to the soil during the latter part of the day on a calm day. **Ingredients:** Dried blend containing BD 500 Horn Manure and BD 502–507 Compost Preparations, plus beneficial soil organisms and other agents. 🌾 [Learn More about Pfeiffer Field and Garden Spray](https://go.jpibd.org/guide-pfeiffer-spray "Biodynamic Pfeiffer Field and Garden Spray") ## Product Details: Among our most popular selling items, Pfeiffer™ products were originated in the 1940’s by Dr. Ehrenfried Pfeiffer with the purpose of helping to make biodynamics more accessible to home gardeners, conventional farmers, and composters. JPI is the exclusive owner of these proprietary formulas. Ehrenfried Pfeiffer found that the use of the Field and Garden Spray **in only six weeks increased available nitrogen in the soil by 500%, phosphorus by 833% and potassium by 260%.** More information can be found in Pfeiffer's [three-volume series of lectures.](https://jpibiodynamics.us14.list-manage.com/track/click?u=82358e3c9065002f0f608eb3a&id=dd552b7090&e=b18cdbf107) The Pfeiffer™ Biodynamic (BD) Field & Garden Spray contains all components included in the Compost Starter plus additional amount of BD 500. Use when planting or transplanting to stimulate germination and root growth and when turning in cover crops to increase soil microorganisms that aid in decomposition and transformation to stable humus. It may also be used on houseplants or as a bath for seeds and bulbs, as described in the handout. One unit may be divided to treat smaller areas. It is an excellent treatment for gardens, pasture, and hayfields of all sizes. **Composition of the Pfeiffer™ BD Field and Garden Spray** This potent spray contains the biodynamic agricultural preparations BD #500, #502, #503, #504, #505, #506, and #507, which give this product its unique effectiveness. It stimulates and attracts a full range of soil micro-flora and fauna beneficial to accelerate the breakdown of organic matter without tying down nitrogen or other delaying actions. Following such breakdown there is a subsequent build up into helpful humus compounds. Properly activated for use, each ounce can yield more than 5.6 billion CFU’s (colony forming units) of beneficial organisms. **Benefits of the Pfeiffer™ BD Field and Garden Spray** The BD Field ; Garden Spray aids humus formation in organic materials already in the topsoil. It should be used when planting and transplanting to stimulate germination and root growth, and when turning in cover crops to aid the transformation of organic materials into humus. One unit of BD Field & Garden Spray treats one acre of land. It comes in single or multiple units but one unit is the smallest quantity we can ship. If your garden is less than one acre, activate only 1 level teaspoon (1 tsp.). This will give coverage for 1,000 square feet. Activation of 1 level tablespoon (1 Tbsp.) will cover 3,000 square feet. * * * **Pfeiffer Field & Garden Spray Detailed Usage Instructions: [English](https://go.jpibd.org/instructions-pfeiffer-spray) | [Chinese](https://go.jpibd.org/instructions-pfeiffer-spray-zh)** **Please note: Quantities over 1 may be bagged together.** ## Details - **Price:** 31.16 USD - 1450.0 USD - **Vendor:** The Josephine Porter Institute - **Type:** Spray Preparations - **Tags:** Biodynamic Preparations and Compost, farming, gardening, orcharding, soil remedies, Spray Preparations, vineyard ## Variants | Variant | Price | Available | |---------|-------|-----------| | 1 unit | 31.16 USD | In stock | | 50 units | 1450.00 USD | In stock | ## Images - Biodynamic Pfeiffer™ Field and Garden Spray - The Josephine Porter Institute - Biodynamic Pfeiffer™ Field and Garden Spray - The Josephine Porter Institute --- > Source: [The Josephine Porter Institute](https://www.jpibiodynamics.org/products/pfeiffer-field-garden-spray) > Updated: 2026-08-11