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Table 2 Comparison of characteristics between control fertilizer and test fertilizer

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

Classification Control fertilizer (r-Ringer) Test fertilizer (AGH-Ringer)
Fertilizer type Composite fertilizer Composite fertilizer
Appearance White powder Light-brown powder
Solubility (%) 12.7 100
Sediment rate (%) 87.3 0
NPK content (%) 18.9:14:4.0 18.9:14:4.0
Method of use Foliar or drench Foliar or drench
Nutrient solution supply system Necessary Unnecessary