Study on Productivity of Irrigated Stereoscopic Multiple-Cropping Ecosystems in Mountainous Area of Southern Ningxia
Du Shouyu1, Tian Enping2, Wang Zhanshan2
1. Celleral Station of Agricultural Technique Extension of Ningxia, Yinchuan 750001; 2. Agricultural Technique Extension Center of Cuyuan county, 756000
Du Shouyu, Tian Enping, Wang Zhanshan. Study on Productivity of Irrigated Stereoscopic Multiple-Cropping Ecosystems in Mountainous Area of Southern Ningxia[J]. cje, 1993, (6): 11-16.