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以豫麦50(弱筋)和豫麦49(中筋)两个品种为试验材料,研究了沙薄地大田条件下追施硫肥对小麦产量和品质的影响。结果表明:拔节期追硫可增加穗粒数,提高千粒重,显著增加子粒产量;子粒硬度增加、出粉率提高,面团吸水率增加、形成时间和稳定时间延长,弱化度增加,灰分、蛋白质和湿面筋含量下降。从协调小麦产量与品质的角度出发,以少量追硫效果为好,弱筋小麦豫麦50的适宜追硫量为22．5kg／hm2,中筋小麦豫麦49的适宜追硫量为45．0kg／hm2。
Two varieties of Yumai 50 (weak gluten) and Yumai 49 (medium gluten) were used as experimental materials to study the effects of topdressing sulfur fertilizer on the yield and quality of wheat under field conditions of thin sand. The results showed that sulfur at jointing stage could increase grains per spike, increase 1000-grain weight and increase grain yield significantly. Grain hardness increased, flour yield increased, water absorption of dough increased, formation time and stabilization time increased, Wet gluten content decreased. From the perspective of coordinating the yield and quality of wheat, with a small amount of sulfur recovery effect is good, the suitable sulfur recovery of weak gluten wheat Yumai 50 is 22.5kg / hm2, the suitable sulfur recovery of middle gluten wheat Yumai 49 is 45.0kg / Hm2.