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Journal of Hebei North University(Natural Science Edition)
1673-1492
1998 Issue 1
wei tou xi : yi zhong xin de sheng zhi sheng li xue yan jiu fang fa
Ying Xiu lin et al.
..............
page:49-52
lun nong ye zi ran zi yuan kai fa li yong yu bao hu guan li de bian zheng tong yi guan xi
Sun Fang
..............
page:30-33
lun chui zhi kang xing he shui ping kang xing
yuan jun hai ;
..............
page:61-64
lun nong ye chan ye hua de li yi ji zhi
Wang Xin gang
..............
page:22-26+57
fang ai san zi jing
li zhi ren ; li xin ;
..............
page:65
yi kao ke ji jin bu shi xian xiang zhen qi ye jing ji zeng chang fang shi de zhuan bian dui sha ling zi zhen xiang zhen qi ye de diao cha yu si kao
Liu Jin hua
..............
page:27-29
qian xi he bei sheng nong zuo wu jie gan zi yuan ji qi kai fa li yong qian li
Guo Yu ping et al.
..............
page:40-43
wan dou dan bai fen si wei shang pin dan ji chan dan quan cheng shi yan yan jiu
Kan De yi et al.
..............
page:4-6
shi you mi dai ti yi mi ce ding si liao cu zhi fang de yan jiu
Li Xiu hua et al.
..............
page:18-19
zhi suan mei dui dan zhong ji sheng chan xing neng de ying xiang
Yan Guilong et al.
..............
page:14-17
ji xi bei di qu ye sheng zhi wu zi yuan de kai fa yu li yong
Lu Jin ying et al.
..............
page:53-57
su liao da peng huang gua shuang mei bing de fa sheng he zong he fang zhi
Zhang Ai xiang et al.
..............
page:58-60
xuan hua niu nai pu tao wu he hua ji shu yan jiu chu bao
Huo Shu xin et al.
..............
page:20-21
bei fang ban gan han shan qu nong ye sheng tai huan jing tui hua xian zhuang yu dui ce tan tao yi he bei sheng chong li xian wei li
Wang Zhan jun
..............
page:34-39
shi yan xing da chang gan jun bing huan ji xue qing sheng hua zhi biao de ce ding yu fen xi
Liang Jun rong et al.
..............
page:11-13
2,4 er lv ben fen yu jia quan suo he fan ying de yan jiu
Yuan Guang yao et al.
..............
page:44-45
shen shang xian su yi dao su dui jia tu xue tang de ying xiang
Zhang Fu mei et al.
..............
page:7-10
yi lei fei xian xing bo dong fang cheng jie de bao po yu xi mie xian xiang
Li Cai juan
..............
page:46-48+60