Generation of the data required by Conservation Model
Mou Ruifang School of Environmental Science and Engineer; Southwest Jiaotong University; Chengdu 610031; China

..............page:18-20

Analysis of China's tobacco industry competition modes in the government monopoly environment
Li Tianfei and Sun Linyan Management College;Xi'an Jiaotong University; Xi'an 710049; China

..............page:14-17

The pH control optimization in the crop fertigation system using ANN
Chen Xi Department of Computer Science and Information Engineering; Tianjin Science &Technology University; Tianjin 300222; China

..............page:21-24

The quantified analysis of China's GM cotton yield capacity by C-D function and stochastic frontier model
Zhang Tao and Xue Baodi Nanjing Agricultural University;Nanjing 210095;China

..............page:11-13

A multi-objective fuzzy optimization model for cropping structure and water resources and its method
Ma Jianqin1; Chen Shouyu2; and Qiu Lin1 1 North China Institute of Water Conservancy and Hydroelectric Power;Zhengzhou 450008;China 2 Dalian University of Technology; Dalian 116024; China

..............page:5-10

development of hybrid rice in china
Yuan Longping and Wu Xiaojin China National Hybrid Rice R &D Center;Changsha 410125; China

..............page:2-4