System Sciences and Comprehensive Studies in Agriculture 1989 Issue 2 an tu xian ren kou yu ce mo xing

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System Sciences and Comprehensive Studies in Agriculture
1001-0068
1989 Issue 2

an tu xian ren kou yu ce mo xing
liu yuan gen ; jin chun feng

..............page:44

an tu xian liang shi chan liang yu ce mo xing
liu yuan gen ; zhao xue jun

..............page:40

guan shuai zhen ying yong nong ye xi tong gong cheng diao zheng chan ye jie gou zong he bao gao
zhang guo xin

..............page:32

yan tai shi wai xiang xing nong cun chan ye jie gou yan jiu ji shu bao gao
liu zuo jun

..............page:16

yan tai shi wai xiang xing nong cun chan ye jie gou yan jiu zong he bao gao
liu zuo jun

..............page:1

an tu xian xu shi jie gou yu si liao ping heng you hua she ji bao gao
xu guang zuo

..............page:48

shui dao gao chan zai pei zong he nong yi cuo shi shu xue mo xing de yan jiu
wang wen ji

..............page:52

an tu xian she hui jing ji xi tong huan jing bian bie
liu yuan gen

..............page:56

zhu yao nong zuo wu yu tu rang sheng chan qian li fen xi
liu yuan gen

..............page:60

hui gui qu shi kong zhi yu ce fa
liu yuan gen ; jin chun feng

..............page:64

tu di de shi du gui mo jing ying yu nong cun fen gong fen ye de you xu hua fa zhan
xia en jun

..............page:65

lai xi xian nong cun chan ye jie gou yan jiu
cong pei chen

..............page:69

song nen ping yuan liang shi sheng chan hui se yu ce
cao rui

..............page:74

nong ye ji xie guan li xin xi xi tong de shi shi xiao yi
chen yan qing ; liu qiang

..............page:76