Here u go mark, this should help you out.

S is plentiful in both organic and mineral soils. Liming and good aeration increases S availability. Hence S deficiencies should not occur in soils that are suitable for growing marijuana. However, sulfur deficiencies sometimes can be confused with N deficiencies and may also occur because of an excess of other nutrients in the soil solution. Sulfur-deficiency symptoms usually start at the top of the plant. There is a general yellowing of the new leaves. In pots, the whole plant may lose some green colour. Both sulfur and Mg deficiencies can be treated with the same compound, epsom salts (MgSO4). Epsom salts, or bathing salts are inexpensive and available at drug stores.
r00tdoctor Reviewed by r00tdoctor on . Sulur deficiency anyone know of a good way to fix this when you're looking for a common item fix...? my flowers are nearly 7 weeks in flower and they've got a sulfur def from high ph, I'm gonna get my ph lower but I could like to give them something to help...I've got a lot of leaves dying down and I fear my buds could suffer...thanks for the suggestions guys :thumbsup: Rating: 5