Agricultural potassium nitrate is a novel soil conditioner and efficiency-enhancing fertilizer developed against the backdrop of increasingly severe soil acidification in China. While ensuring full nitrate nitrogen and high potassium nutrients, it chelates carbon-containing elements with a pH value reaching 8-10, effectively improving soil conditions. The carbon-containing elements promote changes in the soil's physical structure, loosening the soil, 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 pH environment, and replenishes various medium and trace elements extracted from the soil. This product is fast-dissolving and long-lasting, featuring functions such as soil improvement, water retention and drought resistance, enhanced crop disease resistance, increased crop yield, improved agricultural product quality, and restoration of crop natural ecology.