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Title:: Effect of Mineral Nutrient Solution Replaced by Fermented Liquid of Humulus scandens on Growth and Quality of Lettuce

Author(s):: MA Caixia; SANG Zheng; ZHANG Yonghao; WANG Jiqing; (College of Horticulture,Henan Agricultural University,Zhengzhou,Henan 450002)

Abstract:: ‘Italy Lettuce’ was used as material,based on the pretest, Humulus scandens fermented liquid that had been diluted 50 times was set five alternative gradient(0∶100,25∶75,50∶50,75∶25,100∶0,volume ratio) in order to provide references for the development and utilization of plant-based organic nutrient solutions,the effects of different treatments on the growth and quality of lettuce were studied by hydroculture method.The results showed that the Humulus scandens fermented liquid had inhibitory effect on the growth of lettuce overground part,and the greater alternative proportion,the more obvious inhibitor.The plant height,overground dry and fresh weight of lettuce respectively decreased 13.36%,16.26% and 21.27% than control by the 25% replacement ratio.Otherwise it could significantly improve the nutritional quality of lettuce,of which 25% replacement ratio respectively increased the soluble sugar,soluble protein,vitamin C and chlorophyll content of lettuce fresh leaves than control by 1.5%,13.6%,37.8%,22.1%.It was suggested that 25% of the fermented liquid of Humulus scandens as mineral nutrition could be used for high quality production of lettuce.