Effects of Different Nitrogen Levels on the Nutrient Elements Dynamic Change,Yield and Quality of Hydroponic Lettuce
SU Yuanjun, WANG Wen, HU Xiaotao, WANG Rui, ZHANG Dong, QIAO Yuan
ACTA AGRICULTURAE BOREALI-SINICA . 2016, (3): 198 -204 .  DOI: 10.7668/hbnxb.2016.03.029