Essential Reading For Insomniacs

pH MEANS HYDROGEN POWER

It is a measure of the degree of alkalinity or acidity of a solution, and is often expressed as the logarithm of the reciprocal of the hydrogen ion concentration in gram equivalents per liter of solution. pH7=.0000001 gram atom of hydrogen per liter. Pure distilled water is regarded as neutral with a pH of 7. pH values range from 0 to 14. From 0 to 7 indicate acidity, and from 7 to 14 indicate alkalinity.

ACIDIC

NEUTRAL-

ALKALINE

Figure 3.3

COMPOST MICROORGANISMS MAGNIFIED 1,000 TIMES

Figure 3.3

COMPOST MICROORGANISMS MAGNIFIED 1,000 TIMES

Reproduced with permission from On-Farm Composting Handbook. NRAES-54, published by NRAES, Cooperative Extension, 152 Riley-Robb Hall, Ithaca, New York 14853-5701. (607) 255-7654. Quantities of microorganisms from: Sterritt, Robert M. (1988). Microbiology for Environmental and Public Health Engineers. p. 200. E. & F. N. Spon Ltd., New York, NY 10001 USA.

Reproduced with permission from On-Farm Composting Handbook. NRAES-54, published by NRAES, Cooperative Extension, 152 Riley-Robb Hall, Ithaca, New York 14853-5701. (607) 255-7654. Quantities of microorganisms from: Sterritt, Robert M. (1988). Microbiology for Environmental and Public Health Engineers. p. 200. E. & F. N. Spon Ltd., New York, NY 10001 USA.

Table 3.6

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