Abstract In order to study the law of nutrient absorption by different head lettuce varieties and differences
in their yield and quality，this paper measured and evaluated 5 indexes of 7 head lettuce varieties，including
yield，nutrient absorption，nutrient quality，mineral substance content and nitrate content．The results
indicated that there were bigger differences in nutrient absorption，yield and quality among different head
lettuce varieties．Nutrient absorption has certain effect on yield and quality．Varieties with better nutrient
absorption relatively had better yield and quality．Among these 7 varieties，‘Atlanta’ and‘ Yusheng No.2’ had
better nutrient absorption，and their yield and quality were relatively superior than that of the other varieties．
Their comprehensive performance were also pretty good．Variety‘Feixiang’with poorer nutrient absorption
had poor yield and quality performance．
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Received: 12 November 2019
Published: 15 January 2020
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