Study on the Effect of Organic Fertilizer Made from kitchen Waste on Soil Nutrients

Abstract In the study, the changes of nutrients in the soil during spinach planting were determined through pot comparison experiment, and the effects of the application of kitchen waste fertilizer on the growth of spinach were studied. The results of the study were that the application of fermentation products could regulate the soil pH. When the food waste application increased, the reduction of organic matter in soil also increased, the maximum reduction being 56.6% compared with 0d. The alkali-hydrolyzed nitrogen and available phosphorus content in soil increased first and then decreased, and the content of available potassium also increased as it was used increasingly after the spinach harvest. The results indicated that the use of kitchen waste fertilizer could efficiently increase the nutrient content in soil, adjust the soil pH, and increase the absorption and utilization rate of organic components of spinach.