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                                        Chapter 37 letter from london
                                
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... are not a lazy person in the countryside, almost every household will have it.
Plant ash is the ashes formed after burning firewood. It is a quick-acting potassium fertilizer with a loose texture. It generally contains 5% to 15% of available potassium, and also contains calcium, magnesium, sulfur, phosphorus, and iron. Plant ash is mainly used as potassium fertilizer in agricultural production. It also has various functions such as cold protection, sterilization, inhibition of pests an ...
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