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What are the precautions for spraying foliar fertilizer on soybeans?
Foliar fertilization of soybeans has the advantages of small dosage, quick results, high fertilizer efficiency and good effect, and has been widely promoted and applied in recent years. However, because some farmers mistakenly believe that foliar fertilization is "beneficial and harmless, the more the better," in actual practice there are problems such as randomly choosing the type of fertilizer, randomly increasing the dosage, randomly...