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C,H,O,N,S,B,K,P,Ca,Mg,Fe,Mn,Cu,Zn,Mo,Cl,Ni- are these elements essential for plant growth? |
| Answer» C,H,O,N,S,B,K,P,Ca,Mg,Fe,Mn,Cu,Zn,Mo,Cl,Ni- are these elements essential for plant growth? | |