they the same compounds yes , but they not used by the plant the same way as chemical salts are ,if you grow organically there should be no excess chemicals present in the plant by harvest time ,,,thats a fact not my opinion .. when feeding salts there will be excess as your force feeding your plant , organic feeding works totally different ,,the plant only takes wat it needs when it needs it so by 6 /7 weeks flowering the plant takes less n/p/k ..its like a natrual flush,,search the net m8 , youll find the majority of organic growers dont flush

edit; i do agree with you , with chemical salts its important to flush,,but not with organics , fukin ell, theres a few posts on it in the organic section here ,,so the comunity here doesnt know better than me as they wouldnt be saying wat im saying in regards to organic feeds... you gave me neg rep cas you disagree with wat i said , bit childish tbh ,,, theres plenty on here that dont flush so get ya facts right