"vigorously applying organic fertilizer products to enhance soil organic matter content" http://translate.googleusercontent.com/translate_c?hl=en&sl=zh-CN&u=http://www.farmers.org.cn/Article/ShowArticle.asp%3FArticleID%3D75672&prev=/search%3Fq%3D%2522%25E5%25BA%25B7%25E5%259D%25A6%25E7%2594%259F%25E7%2589%25A9%2522%26hl%3Den%26sa%3DX%26tbo%3D1%26tbs%3Dqdr:m%26prmd%3Divu&rurl=translate.google.com&usg=ALkJrhgd3qpaWXhtUqaoSKljK4KWgyltfg