Petunia fertigation tips.
Not apply Ca & Mg fertilizers to often Apply Ca(NO 3 ) 2 + Mg(NO 3 ) 2 every two weeks only.
week 3
week 4
week 5
week 7
week 6
week 8
week 9
2.5 2.5
2.3 2.3
2.3
2.3 2.3 2.3 2.3 2.3
2.3
2.0 2.0
2.0 2.0 2.0 2.0 2.0
2.0
2.0 2.0 2.0 2.0
2.0 2.0 2.0
2.0 2.0
1.7 1.7
1.7
1.7
1.7 1.7
1.7
1.7
1.5
Water EC, mS/cm
( 18 -5- 18 ) – vegetative NPK, ( 18 -5- 35 ) – generative NPK
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