A1g sample of soil with a pH of 5.5 and CEC value of 15 meq/ 100 g was analyzed. The soil was treated with 100 mL of 10 M HCl to remove the following ions: Ca+2, Mg+2, NH4 + , Na+2, K+ and Al+3 . The p values for the ions were: pCa = 0.678, pMg = 0.523, pNH4 = 0.757, pNa = 1.155, pK = 0.097, pAl = 0.22. A) Compared to a Hoagland's medium recipe are any of these cations deficient in the soil? B) Do any of the cations appear to be in excess but still within physiological limits? C) Are any of these cations within the toxic level? If so, what can be done to mitigate toxicity?