Abstract In order to evaluate the effect of different fertilizers’ sources on micronutrients’ content and sugar quality of sugar beet, three fertilizers’ sources include spent mushroom compost (SMC) (29 t/ha), sheep manure (23 t/ha), chemical fertilizer including zinc sulfate (10 kg/ha), copper sulfate (10 kg/ha), iron sulfate (30 kg/ha), manganese sulfate (15 kg/ha) and no fertilizer (control) were conducted in a randomized complete block design with three replications at Research Farm of Shahrekord University in 2013. The results showed that micronutrients’ content in the root, α-amino-N sucrose percentage and sucrose yield were significantly affected by fertilizer treatments. The highest elements’ content of Fe (90.39 mg/kg), Zn (39.15 mg/kg), and Cu (18.1 mg/kg) in sugar beet root belonged to SMC treatment. Besides, SMC caused less α-amino-N accumulation in sugar beet compared with sheep manure (1.05 MEq/g). Sucrose percentage was higher in SMC treatment than the sheep manure. Likewise, sucrose percentage revealed a significant positive correlation with micronutrients of zinc, copper, and manganese in sugar beet root. Therefore, it could be concluded that using SMC increases micronutrients’ content in the root and at the same time, plays an important role in sugar quality improvement of sugar beet.

中文翻译：

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不同肥料来源对甜菜微量元素含量及糖质的影响

摘要 为评价不同肥料来源对甜菜微量营养素含量和糖质质量的影响，三种肥料来源包括蘑菇堆肥（SMC）（29 t/ha）、羊粪（23 t/ha）、化肥包括硫酸锌（10公斤/公顷）、硫酸铜（10公斤/公顷）、硫酸铁（30公斤/公顷）、硫酸锰（15公斤/公顷）和不施肥（对照） 2013 年在 Shahrekord 大学研究农场进行了三个重复的块设计。结果表明，肥料处理显着影响根中微量营养素含量、α-氨基-N 蔗糖百分比和蔗糖产量。甜菜根中Fe（90.39 mg/kg）、Zn（39.15 mg/kg）和Cu（18.1 mg/kg）元素含量最高的属于SMC处理。除了，与羊粪（1.05 MEq/g）相比，SMC 在甜菜中引起的 α-氨基-N 积累较少。SMC 处理中的蔗糖百分比高于羊粪。同样，蔗糖百分比与甜菜根中锌、铜和锰的微量营养素显着正相关。因此，可以得出结论，使用SMC增加了根中微量营养素的含量，同时对甜菜的糖质改善具有重要作用。