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Table 3 Effects of fertilizers on growth at harvest

From: Efficiency and effectiveness of vitamin C-substrate organo-mineral straight fertilizer in lettuce (Lactuca sativa L.)

Treatment groups Plant height (cm) Stem diameter (mm) Leaf length (cm) Leaf width (cm) Leaf number (ea/plant) Leaf diameter (mm) Chlorophyll (mg/g FW) Root length (cm)
Control (water only) 22.1 ± 1.6b 3.0 ± 1.0c 12.6 ± 1.4d 6.5 ± 0.4b 7.7 ± 1.2b 0.2 ± 0.1a 21.2 ± 0.5a 8.3 ± 0.3a
r-Ringer (1/2000) 24.4 ± 0.7a 5.5 ± 0.8b 16.4 ± 0.8ab 9.6 ± 1.2a 9.3 ± 1.5ab 0.4 ± 0.5a 21.3 ± 3.1a 8.0 ± 0.5a
AGH-Ringer (1/2000)   5.6 ± 0.2b 14.5 ± 1.4c 7.2 ± 0.9b 9.0 ± 1.0ab 0.1 ± 0.01a 21.4 ± 2.0a 7.8 ± 0.6a
AGH-Ringer (1/1000) 25.8 ± 0.8a 6.9 ± 0.7a 17.6 ± 0.3a 9.6 ± 0.2a 11.0 ± 1.7a 0.1 ± 0.01a 23.3 ± 7.4a 6.8 ± 0.5b
AGH-Ringer (1/500) 23.7 ± 1.2ab 5.5 ± 0.4b 15.2 ± 0.1bc 7.8 ± 0.8b 10.3 ± 1.5ab 0.2 ± 0.01a 20.6 ± 1.1a 6.5 ± 0.9b
  1. All data are expressed as mean ± standard deviation (n = 3). Different letters show a significant difference at p < 0.05 as determined by Duncan’s multiple range tests