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The best ideas for greenhouse kits, greenhouse plans, greenhouse supplies, how to build a greenhouse and much more.
A classic text on a critical issue of modern-day concern. The publication of this booklet was prompted by the growing concern about excessive nitrate contents in water supplies, feeds, and even food. These high concentrations of nitrate are potential, and sometimes actual, dangers to humanity and animals, and they can also bring about changes in landscape patterns. Dr. Herbert Koepf clearly spells out the significant ecological imbalances that result from the present methods of nitrate application... read more Hide