Effects of Different Harvesting Periods on the Quality of Upper Six Tobacco Leaves of Flue-cured Tobacco in Central Henan
YANG Mingkun1, LI Jianhua2, LIU Kouzhu1, DUN Songyang2, LI Hongliang2, WANG Dian2, SHI Hongzhi1*
Journal of Agricultural Science and Technology . 2020, (12): 163 -171 .  DOI: 10.13304/j.nykjdb.2019.0630

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