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  2. Biochar - Wikipedia

    en.wikipedia.org/wiki/Biochar

    A pile of biochar Biochar mixture ready for soil application. Biochar is charcoal, sometimes modified, that is intended for organic use, as in soil. It is the lightweight black remnants, consisting of carbon and ashes, remaining after the pyrolysis of biomass, and is a form of charcoal. [1]

  3. Is Wood Ash Good for the Garden? 5 Tips for Using This ... - AOL

    www.aol.com/wood-ash-good-garden-5-164600561.html

    Find out if wood ash is good for the garden and how to use it ... Don’t use ash from coal, charcoal briquettes, or treated timber on food crops. ... wood ash, and fertilizer manufactured in a ...

  4. Slash-and-burn - Wikipedia

    en.wikipedia.org/wiki/Slash-and-burn

    Not allowing the slashed vegetation to burn completely and ploughing the resultant charcoal into the soil (slash-and-char) has been proposed as a way to boost yields. [ 21 ] Promoters of a project from the early 2000s claimed that slash-and-burn cultivation could be reduced if farmers grew black pepper crops, turmeric, beans, corn, cacao ...

  5. Compost - Wikipedia

    en.wikipedia.org/wiki/Compost

    Compost is a mixture of ingredients used as plant fertilizer and ... Compost is a good source ... logs, pine needles, sawdust, and wood ash, but not charcoal ash. ...

  6. Charcoal - Wikipedia

    en.wikipedia.org/wiki/Charcoal

    Lump charcoal is a traditional charcoal made directly from hardwood material. It usually produces far less ash than briquettes. Japanese charcoal has had pyroligneous acid removed during the charcoal making; it therefore produces almost no smell or smoke when burned. The traditional charcoal of Japan is classified into three types:

  7. Wood ash - Wikipedia

    en.wikipedia.org/wiki/Wood_ash

    Wood ash is the powdery residue remaining after the combustion of wood, such as burning wood in a fireplace, bonfire, or an industrial power plant. It is largely composed of calcium compounds, along with other non-combustible trace elements present in the wood, and has been used for many purposes throughout history.

  8. Activated carbon - Wikipedia

    en.wikipedia.org/wiki/Activated_carbon

    Activated carbon. Activated carbon, also called activated charcoal, is a form of carbon commonly used to filter contaminants from water and air, among many other uses. It is processed (activated) to have small, low-volume pores that greatly increase the surface area [1] [2] available for adsorption or chemical reactions [3] that can be thought of as a microscopic "sponge" structure (adsorption ...

  9. Terra preta - Wikipedia

    en.wikipedia.org/wiki/Terra_preta

    Charcoal's high absorption potential of organic molecules (and of water) is due to its porous structure. [7] Terra preta's high concentration of charcoal supports a high concentration of organic matter (on average three times more than in the surrounding poor soils), [7] [38] [43] [50] up to 150 g/kg. [25]

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