1. The Nature and Properties of Soils;Brady,2002
2. Effects of water and nitrogen supply on spinach (Spinacia, oleracea L.) growth and soil mineral N residues;Chen;Pedosphere,2002
3. Analysis on the topsoil nutrients status in Shouguang;Gan;Chin. Agr. Sci. Bull,2008
4. Study on nitrogen management and irrigation methods of greenhouse tomato;Gao;Sci. Agr. Sin,2009
5. Analysis on the current situation, problems and countermeasure of protected plant industry in Shandong;Gao;China Fruit Veg,2010