>________________________________ >As for carbon and oxygen sources - a local soil scientist in a lecture told a group of >us to consider adding sugar and 3% hydrogen peroxide to irrigation water for fruit trees >and lawns. He said it encouraged growth of beneficial microorganisms. The quantities >were small: per irrigated acre / 0.4 hecatare, about 1 cup / 240ml granulated sugar (I >know it isn't measured that way in SI but I don't feel like looking up the density of >granulated sugar) and 1 pint / 480ml 3% hydrogen peroxide. > > >Is there any point in using hydrogen peroxide (H2O2) when watering plants in soil that contains appreciable quantities of organics. I would have thought the oxygen would be soon mopped up, and not be available to plants, unless in large excess. Hydroponics growers use it with good results I believe http://quickgrow.com/gardening_articles/… the larger the concentration of organic compounds (Carbon containing, not chemical free!) the bigger the problem. > >Has anyone used H2O2 in watering to recover difficult bulbs, eg. Worsleya , from root rots? > >Brian Whyer, Buckinghamshire, England, coldest April day since 1962