The effects of soil application with sulphur (SAS) at a rate of 200 kg fed^–1 and/or foliar application with 0, 1 or 2 mM of ascorbic acid (FAA) on the growth, fruit yield and yield components, the concentrations of potassium (K), sodium (Na), sulphur (S) and ascorbic acid (AsA), and the ratio of K/Na of pumpkin (Cucurbita moschata Duchesne) plants grown on a newly-reclaimed saline soil were investigated. Two field experiments (2012 and 2013) were performed on a newly-reclaimed saline soil using a design of completely randomized blocks with six treatments, each with four replicates. Results indicated that SAS and/or FAA increased growth traits (i.e., stem length, canopy dry weight plant^–1, number of leaves plant^–1, average leaf area and total leaf area plant^–1), fruit yield and yield quality (i.e., fruit length and diameter, flesh thickness, TSS, average fruit weight and fruit yield fed^–1), leaf concentrations of N, P, K, S and AsA, and K/Na ratio. In contrast, leaf concentration of Na was reduced as a result of SAS and/or FAA. SAS and FAA, therefore, have the potential to be used as a soil and foliar applications, respectively for pumpkin to overcome the adverse effects of the newly-reclaimed saline soils.