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发明名称
METHOD FOR ASSESSMENT OF PRESERVATION OF STUBBLE IN PROCESS OF SOIL TILLAGE
摘要
申请公布号
SU1646495(A1)
申请公布日期
1991.05.07
申请号
SU19864181420
申请日期
1986.11.25
申请人
ORENBURGSKIJ SELSKOKHOZYAJSTVENNYJ INSTITUT
发明人
KOVRIKOV IVAN T,SU;STAROZHUKOV ALEKSANDR M,SU;PUTRIN ALEKSANDR S,SU
分类号
A01B79/00;A01B35/00;A01B69/00
主分类号
A01B79/00
代理机构
代理人
主权项
地址
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