PLANT-DERIVED DISEASE-RESISTANT AND GROWTH-PROMOTING WATER-SOLUBLE FERTILIZER AND PREPARATION METHOD AND APPLICATION THEREOF

The present disclosure relates to the technical field of agricultural fertilizers, and specifically to a plant-derived disease-resistant and growth-promoting water-soluble fertilizer and a preparation method and application thereof. The disclosure uses a wood vinegar as the main body and mixes it with potassium fulvic acid, urea, potassium nitrate, zinc sulfate, boric acid and polyglutamic acid to prepare the plant-derived disease-resistant and growth-promoting water-soluble fertilizer without adding any chemical pesticides. The obtained plant-derived disease-resistant and growth-promoting water-soluble fertilizer has stable properties, no pollution, and multiple functions such as growth promotion and stress resistance, which can be used to directly guide agricultural production and has a strong applicability. The results of the examples show that the plant-derived disease-resistant and growth-promoting water-soluble fertilizer of the disclosure can significantly reduce disease index of wheat root rot and improve wheat yield.