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土壤有机质是土壤固相部分的重要组成成分,土壤的肥力水平、耕性、水肥保持及供给性能等与有机质含量密切相关,维持或提高土壤有机质含量一直是土壤培肥的重点。2013—2015年蒲城县连续3年依托有机质提升项目共投入资金165万元用于提升土壤有机质,在蒲城县项目区大力推广绿肥还田技术,项目实施后改善了项目区土壤肥力状况,提高了土壤地力水平,促进了项目区耕地的可持续发展,取得了良好的生态效益、经济效益、社会效益。本文就有机质提升项目进行总结,以期为此项目查缺补漏以及后期工作开展提供参考。
Soil organic matter is an important component of soil solid fraction. Soil fertility level, tillage, water and fertilizer conservation and supply performance are closely related to organic matter content. Maintaining or increasing soil organic matter content has always been the key point of soil fertilization. In 2013-2015, Pucheng County invested a total of 1.65 million Yuan for the organic matter upgrading project for 3 consecutive years to improve the soil organic matter and vigorously promote the technology of green manure return in the project area of Pucheng County. After the project was implemented, the soil fertility of the project area was improved, Improve the level of soil fertility, promote the sustainable development of cultivated land in the project area, and achieve good ecological, economic and social benefits. This article summarizes the organic matter upgrading project, with a view to providing reference for the lack of inspection and post-implementation work.