The present invention belongs to the technical field of seaweed fertilizers, and particularly relates to a seaweed
oligosaccharide micro-
ecology drip irrigation fertilizer, which comprises, by weight, 10-60% of a seaweed
oligosaccharide solution, 10-50% of a molasses solution, 20-40% of a composite
microorganism bacterial solution, and 10-40% of large, medium and trace elements, wherein crushed seaweed and water are mixed, a biological
lyase is added to carry out enzymolysis so as to obtain a seaweed enzymolysis liquid, and extraction and pressure
filtration are performed under an alkaline condition so as to obtain the seaweed
oligosaccharide solution. The invention further provides a preparation method of the seaweed oligosaccharide micro-
ecology drip irrigation fertilizer. According to the present invention, the effective component in the seaweed is substantially retained, the
utilization rate of crops on the nutrients can be substantially improved, the preparation period is substantially shortened, the necessary
organic matter and the trace elements can be supplemented, the composite
microorganism bacterial solution is added, functions of
disease resistance, stress tolerance,
phosphorus dissolving,
potassium dissolving, and soil
physical structure increasing are provided, and various types of soil-borne diseases can be effectively prevented and controlled.