Chemical and Biological Technologies in Agriculture

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)
Feed materials	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

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