Winter Freezing Damage Index and Its Effect on Wine Grapes in Eastern Part of Helan Mountain of Ningxia
WANG Lianxi1, QIN Wensi1, HAN Yingjuan2*, CHENG Wei1, LI Qi1
Journal of Agricultural Science and Technology . 2019, (8): 28 -35 .  DOI: 10.13304/j.nykjdb.2018.0490

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