Agricultural nitrogen-potassium fertilizer is a novel soil conditioner and efficiency-enhancing fertilizer developed in response to the increasingly severe soil acidification in China. Based on ensuring full nitrate nitrogen and high potassium nutrients, it chelates carbon-containing elements with a pH value of 8-10, effectively improving soil conditions. The carbon-containing elements promote changes in the physical structure of the soil, loosening it, enhancing soil aeration, reducing soil bulk density, and stimulating soil microbial activity. It also strengthens soil water infiltration, increases soil temperature, neutralizes soil acidity, allowing crops to grow in an optimal soil pH environment, and replenishes various medium and trace elements extracted from the soil. This product is fast-dissolving and long-lasting, featuring soil improvement, water retention and drought resistance, enhanced crop disease resistance, increased crop yield, improved agricultural product quality, and restoration of crop ecological functions.