AbstractProject title Study on pretreatment of soil with acidic substances, calcium hydroxide derived from egg shell.Prepared to learn how to adjust the acidity of the soil conditions that affect agriculture, normalization and comparison between soil acidity, sour, acidic soil with calcium hydroxide compounds that enter to fix the problem by adopting an economic shell eggs remaining from the consumer benefits by the Board of research studies have made one with content about the calcium carbonate in the egg shell to do research and chemical reactions of calcium carbonate (limestone) change as the hydroxyl calcium (lime) by the.Rakhlaesiam carbonate is a treasure and can modify the value soil acidic pH. We will bring a chicken egg shell calcium hydroxyl-bite site Mazda by shell eggs come to crush and burn until dry. Then mix the water and evaporate until dry but Calcium hydroxyl sites. After that, it put to the test by mixing with the soil that has a pH value of the soil pH to decrease to a value appropriate to the agricultural sector.
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