条件筛选
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Is it beneficial to water flowers with leftover tea leaves and leftover tea?
Leftover tea leaves and leftover tea water are harmful and not beneficial at all when used to water any flowers. Leftover tea leaves and leftover tea water both contain a large amount of theophylline, and during the decomposition and fermentation process they produce a large amount of harmful gases and reducing substances. Watering with leftover tea water over a long period often causes alkaline damage on the soil surface and easily harbors pests and diseases. Before use, they need to be decomposed; it is best not to use undecomposed leftover tea leaves.