Effects of different organic fertilizer management modes on phosphorus and potassium content in wheat field

In order to study the effects of different organic fertilizer management modes on soil nutrient content in wheat field, and provide scientific basis for agricultural production. In this paper, the changes of soil phosphorus and potassium content in wheat field were studied by setting low, medium and high amounts of organic fertilizer, combined with different tillage methods, such as no tillage, tillage, subsoiling and subsoiling tillage. The results showed that: low amount of organic fertilizer combined with tillage and medium amount of organic fertilizer combined with no tillage were conducive to increase the content of soil available potassium. Comprehensive analysis suggested that the region should avoid applying high amount of organic fertilizer and adopt low amount of organic fertilizer combined with no tillage measures, which could help to improve soil fertility.