【摘要】 为了解速效硫肥在华北冬小麦上的应用效果,分别在山东泰安和河北沧州进行田间试验,研究速效硫肥(Rapid Release Sulphur,RRS)对小麦籽粒产量、蛋白质含量、含硫量和经济效益的影响。试验设不施硫对照(0 kg/hm2)、低量硫磺粉(30 kg/hm2),高量硫磺粉(60 kg/hm2)、低量速效硫肥(30 kg/hm2)和高量速效硫肥(60 kg/hm2)5个处理。结果表明,在供试土壤有效硫含量较高的条件下,施硫可增加小麦籽粒产量,并受到硫肥种类和施用量的影响;速效硫肥增产幅度高于普通硫磺粉处理,高量速效硫肥处理增产最为显著,在泰安和沧州试验点分别增产8.3%和10.1%。小麦籽粒含硫量随硫肥施用有增加趋势,但只有沧州试验点的高量施硫处理表现显著,不同硫肥种类间无显著差异。速效硫肥施用能显著提高泰安点小麦的籽粒蛋白含量,低量速效硫肥处理显著高于低量硫磺粉处理,但在沧州点表现不明显。施用硫肥提高了小麦的生产效益,两试验点均以速效硫肥增效优于普通硫磺;综合比较,泰安点小麦以高量速效硫肥处理增效最高(增加收入1369元/hm2,产投比为10.5),沧州点小麦以低量速效硫肥增效最高(增加收入1111元/hm2,产投比为16.4)。合理施用速效硫肥能实现在增加小麦产量的同时稳定或提高小麦籽粒品质,增加小麦生产效益。更多还原

【Abstract】 To determine the effects of rapid release sulphur(RRS) application on winter wheat in Northern China,field trials were conducted respectively in Taian of Shandong Province and Cangzhou of Hebei province to evaluate the effects of rapid release sulphur(RRS) on grain yield,seed protein content,sulfur content and economic profit for winter wheat.Five treatments were applied in the experiments: control(0 kg/hm2),sulfur powder with low rate(30 kg/hm2),sulfur powder with high rate(60 kg/hm2),RRS with low rate(30 kg/hm2) and RRS with high rate(60 kg/hm2).Results illustrated that wheat yield was increased by S fertilization on high available sulfur content soil.And the yield responses were affected by the forms and rates of sulfur fertilizer.The RRS increased wheat yield higher than the sulfur powder.The high rate RRS treatment achieved the highest wheat yield at two sites.Compared with the control,the grain yields were enhanced by 8.3% and 10.1% at Tai’an and Cangzhou sites respectively.Sulfur fertilization improved the sulfur content in wheat grain,but only high rate sulfur treatments at Cangzhou site increased the grain sulfur content significantly.No significant difference was found between two elemental sulfur fertilizers.RRS treatment improved the seed protein content of wheat only for Tai’an site.The low rate RRS treatment yield had higher seed protein content than that in low rate sulfur power treatment.However,there was no significant difference among sulfur treatments at Cangzhou site.Sulfur fertilization led to the economic profit for wheat production.Economic profits were higher for RRS fertilizer than sulfur powder.At Tai’an site,the high rate RRS treatment yielded the highest economic profit(1369 yuan/hm2) and highest value cost ration(10.5).At Cangzhou site,the low rate RRS treatment achieved the economic profit of 1111 yuan/hm2and highest value cost ratio(16.4).Optimal application of RRS will maintain or improve seed quality while increasing economic profits and wheat grain yield.更多还原