H. Zhang

Improvement of Planosol solum: part 8, analysis of draught of a three-stage subsoil mixing plough

H. Kawabe, K. Araya, H. Jia, 1998 .

Improvement of Planosol Solum. Part 10: Mixing of Wheat Straw and Corn Stalk into Subsoil

K. Araya, H. Zhang, C. Zhang, 1998 .

Machine for construction of an artificial perched watertable, Part 2: Improved sand gun

K. Araya, H. Zhang, G. Guo, 2004 .

Improvement of Planosol Solum. Part 9: Fertilizer Distributor for Subsoil

K. Araya, H. Zhang, C. Zhang, 1998 .

Improvement of Planosol Solum: Part 7, Mechanical Properties of Soils

K. Araya, H. Zhang, C. Zhang, 1998 .