Wood vinegar is also called pyroligneous acid. A reddish brown liquid that is composed of acetic acid, methanol (wood alcohol), acetone, wood oils and tars. It was introduced by Juntaro Nakajima of Japan Agricultural Exchange Council (JAEC) in DA TECHGEN on June 28 2008.
Uses and Application of Wood Vinegar
1) Enriching the soil. Dilute wood vinegar with water ( 1:200 ration-1 part wood vinegar and 200 part water) and sprinkle it to the soil before planting. Application is one liter solution for every square meter of planting area.
2) Applying to compost. Dilute one part wood vinegar with 50 parts water and sprinkle to composting materials. Application rate is 50 liters solution to one compost.
3) Fertilization. Dilute one part wood vinegar with 200 parts water and spray it to leaves once a month. Dilution ratio can be change to 300 parts water for the succeeding applications.
4) Seed germination. Dilute one part wood vinegar with 200 parts water then soak the seeds for 24 hours.
5) Pest repellent or deodorizer. Dilute one part vinegar with 20 parts water and spray it it the plant or to the substrate in case of odor removal.
Source: IM Agro-Fuel Development Ventures, Inc.
How to Make Wood Vinegar – courtesy of DA TECHGEN
1) Pile/arrange two sacks of coconut shells in a burning chamber.
2) Burn coconut shells for at least eight hours. Cover the burning chamber.
3) Put 400 liters of water in the cooling smoke system until the condensation takes place.
4) Wait for 30 minutes for the wood vinegar flow.
5) Put container under the flowing wood vinegar. It will produce 18 to 24 liters of wood vinegar in a day.