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硫酸盐肥料以S10或40kg／hm2分别在油菜的出苗期、莲座期、现蕾期、抽薹期及初花期施入缺硫土壤，并在出苗期结合施用氮肥N80或160kg／hm2。结果表明，对照区植株在抽薹期表现出严重的缺硫症状，特别是单施N160kg／hm2的小区。追施S10kg／hm2可显著提高油菜产量及含油量，但追施时期间差异未达到显著性水准，这一施用量明显不足，油菜籽产量远低于施S40kg／hm2处理。迟于花期追施S40kg／hm2，籽粒产量较前期减少约20％。此外，施S40kg／hm2还可明显提高籽粒的蛋白质含量。对缺硫植株，籽粒N：S比大于10，而供硫适宜植株为7．5。总硫代葡萄糖甙含量随施硫量的增加而提高，且后期追施明显高于前期。
Sulfate fertilizers were applied to sulfur-deficient soil at seedling stage, rosette stage, bud stage, bolting stage and early flowering stage respectively at S10 or 40kg / hm2, and N80 or 160kg / hm2 nitrogen fertilizer was applied at the seedling stage. The results showed that the control plants showed severe symptoms of sulfur deficiency at the bolting stage, especially in the plot of N160kg / hm2. Topdressing S10kg / hm2 can significantly increase rapeseed production and oil content, but the difference did not reach the significant level during the top dressing time. This application amount was obviously insufficient, and the rapeseed yield was much lower than the treatment of applying S40kg / hm2. Later than the flowering chase S40kg / hm2, grain yield decreased by about 20% over the previous month. In addition, Shi S40kg / hm2 can also significantly improve the grain protein content. For sulfur-deficient plants, the N: S ratio of kernels is greater than 10 and the suitable plant for sulfur is 7.5. The content of total glucosinolates increased with the increase of sulfur application, and the top dressing was significantly higher than the previous ones.