A 2-factor field experiment was conducted on wheat (Triticum aestivum cv. Giza 168), 2016/2017, grown on a Torripsamment sand soil in Ismailia, North of Egypt to assess K and ascorbic acid (AA) application. K treatments were K0 none, K1 through the soil at 200 kg K ha-1, K2 foliar spray with1000 mg K L-1 solution and K3 through soil + foliar. Ascorbic acid (AA) spray treatments were A0 none, A1 spray with 100 g L-1and A2 200 g L-1. Fertilization showed the positive response for yields (grains and straw) and NPK uptake in plant reaching highest by treatment of K3A2. Grains in the non-fertilized yielded 2.26 Mg ha-1 increasing to 13.7% by K0A1 and 119% by K3A2. Same two respective treatments showed grains uptake of 24.5 and 219% for N; 8.6 and 34.6 % for P and 18.2 and 367% for K.