Phosphorus-efficient and curing-free synergistic calcium superphosphate and preparation method thereof

The invention discloses phosphorus-efficient and curing-free synergistic calcium superphosphate and a preparation method thereof. The synergistic calcium superphosphate comprises the following components in parts by weight: 60-95 parts of calcium superphosphate, 0.5-8.5 parts of a synergist, 0.5-4.5 parts of an activating agent and 4-30 parts of humate. The synergistic calcium superphosphate disclosed by the invention has good product physical properties and fertilizer efficiency effects, synergistic substances contained in the synergistic calcium superphosphate can activate phosphorus in the calcium superphosphate and medium trace elements such as calcium, magnesium and iron in soil, reduce degeneration and fixation of the phosphorus, improve the effectiveness of the phosphorus and play a role in improving alkaline soil, and the synergistic calcium superphosphate has a positive stimulation effect on crops, so that growth is facilitated, and the crop yield is improved; and via the preparation method, the conv