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Table 1 Component of fertilizers

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

Feed materials Control fertilizer (r-Ringer) Test fertilizer (AGH-Ringer)
Mixed amount (g) Mix ratio (%) Mixed amount (g) Mix ratio (%)
NH4NO3 633 63.3 633 49.7
KH2PO4 176 17.6 176 13.8
Mg(NO3)2·6H2O 176 17.6 176 13.8
Fe-EDTA (Fe: 13%) 2.11 0.21 2.11 0.17
H3BO3 0.70 0.07 0.70 0.05
CuSO4·5H2O 0.05 0.005 0.05 0.003
ZnSO4·7H2O 11.3 1.13 11.3 0.88
MnSO4·H2O 0.49 0.05 0.49 0.04
Na2MoO4·2H2O 0.06 0.006 0.06 0.004
C6H8O6 (vitamin C) 275 21.57
Sum 1000 100 1275 100