Environment-friendly slow-release sulfur-based nitrogen potassium compound fertilizer

The present invention is an environmentally friendly thio slow release fertilizer nitrogen potassium compound. Effects of compost material belonging containing ammonium compounds or urea in the soil digestion. Wherein the first group of N and K compound fertilizer producing particles, then the sulfur compound fertilizer nitrogen and potassium stearate particles coating and a secondary surface-modified zeolite powder prepared dusting powder, wherein: the group of N and K complexes fertilizer particles are made of the following raw materials in parts by weight of: 31 to 57 urea, ammonium sulfate, 10 ~ 20, 20 ~ 50 potassium sulfate, granulating aids 6 to 12, the amount of water. There is provided a sustained-release effect, a high fertilizer efficiency, simple process, low production cost, the coating material is easily degraded by microorganisms in the soil, beneficial soil, air and water environment protection, applicable to a wide range of environmental Sulfur compound group N and K slow release fertilizer. Suitable for food crops, vegetables and fruit trees as a kind of fat, basal and top dressing administration. Mixed phosphorus fertilizer may also be complexed with various commercially available.