Thursday, June 17, 2010

Making Calcium Phosphate

If one expects to grow healthy chinense plants one must have a source for elemental calcium. Depending where the grower lives it may or may not be available. Here in Thailand I have yet to find a calcium supplement for my plants. I did some research and asked questions on The Hot Pepper Forum (great resource) and have the recipe for making calcium phosphate;
1. Roast/toast crushed eggshells. I used a dry wok. Heat the finely crushed shells until they are black. Don't do this in the house unless you have a really good exhaust fan. 
2. Soak roasted eggshells in equal volume of vinegar for two weeks until the vinegar dissolves the eggshells. The mixture will bubble and foam for a few minutes so don't immediately tighten the lid of the jar.
3. Dilute 1:20 parts water (2 tbsp/gal.) and spray on plants or water into the dirt around the plants.
4. Calcium is important throughout the entire growing cycle and is especially important during pod growth.



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