Studies on Optimized Fertilization of Drip Irrigation for Head Lettuce Facility Cultivation in Autumn at Outskirts of Beijing
ZHAO Qingchun，CHEN Juan，LIAO Hong，CHEN Suxian，ZHAO Kaili，FU Yucui，HAN Bao，GU Xingyu
China Vegetables . 2021, (2): 85 -90 . 

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