1000-3975
1993 Issue 7
bu wu ran shui zhi de biao mian huo xing ji
hong wei ;
hong wei ;
..............page:12
dpc fa ce ding shui zhong cr6+ de gai jin
jin zhong hua ;
jin zhong hua ;
..............page:39-40
nong yao zai zuo wu shang de xiao jie su du
Zhang Xiaohong Zhou Jianping Zhang Dadi Xu Zhengtai
Zhang Xiaohong Zhou Jianping Zhang Dadi Xu Zhengtai
..............page:13-17+47
di san jie shang hai shi huan jing xue ke da xue sheng ke ji lun wen yan tao hui ri qian ju xing
yun ping ;
yun ping ;
..............page:40
..............page:35-37+48
nong yao shi yong de wei xian xing ping jia
Zhang Dadi Qiao Nan Zhang Xiaohong
Zhang Dadi Qiao Nan Zhang Xiaohong
..............page:22-27+7+48
nong yao zai huan jing zhong xiao jie mo shi de yan jiu
Zhang Dadi Zhang Xiaoqun Zhang Xiaohong
Zhang Dadi Zhang Xiaoqun Zhang Xiaohong
..............page:8-12+47
lun guo ji huan jing fa de chan sheng he fa zhan
Xiao Longan Li Xiaoyang
Xiao Longan Li Xiaoyang
..............page:2-4+47
..............page:44-45
..............page:5-7+47
nong zuo wu nong yao wu ran ping jia ji qi ying yong
Zhang Dadi Zhang Xiaohong Zhou Jianping Xu Zhengtai
Zhang Dadi Zhang Xiaohong Zhou Jianping Xu Zhengtai
..............page:18-21+47
di biao shui zhong hen liang jin shu yuan su de yuan zi xi shou fa ce ding
Gu Zhengkang Lu Yonghua Lin Xiaoming
Gu Zhengkang Lu Yonghua Lin Xiaoming
..............page:32-34+48
sheng wu jiang jie xing su liao ke sheng wu jiang jie xing neng ce shi fang fa tan tao
Shi Ba Wu Jifang
Shi Ba Wu Jifang
..............page:41+48+21
wu shui chu li chang de wu ni nong yong wen ti
Wang Fenghai
Wang Fenghai
..............page:28-31+37+48
..............page:40
..............page:42-43
..............page:46
dui codcr ji suan gong shi de yi dian tan tao
xu you lan ;
xu you lan ;
..............page:38-39