Potato (Solanum tuberosum L.) Yield Response to Different Sulfur Rates and Sources

Sulfur (S) is the fourth most essential nutrient after nitrogen (N), phosphorus (P), and potassium (K) with a direct role in amino acid syntheses, such as methionine, cysteine, N assimilation. Potato fast-growing vegetable crop small cycle; therefore, applications at appropriate time, place, rate, source are essential. The objective was to determine effect of different S sources on potato tuber yield, specific gravity, external quality, internal quality. This study conducted 2021 2022, three were applied two rates (T1, 45 kg⋅ha −1 ; T2, 90 ) using 3 × 2 factorial design. Three derived from sulfate ammonia (AS; SO 4 2− source), magnesium (EPTOP; 0 gypsum (SO source). cultivars used for this (Atlantic, Satina, Red La Soda). total marketable yields indicated positive response application sources. Gypsum EPTOP outperformed AS, lower rate (T1) performed better than higher (T2). In one trials, maximum yield difference between AS 33%. gravity cultivar Atlantic found gypsum, whereas Soda Satina did not respond any source. We report treatment effects disorders when weather affected them.