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由于缺乏微量元素,马铃薯块茎种皮变得粗糙,布满裂纹,降低商品质量,并为马铃薯疮痂病等侵染蔓延造成了机会。一些研究结果表明,微量元素可减轻块茎感染疮痂病。对锰的作用进行了大量的研究,助长疮痂病发生的条件和引起缺锰的因素,实际上是一致的。在西苏格兰农学院进行了研究(A.I.McGregor 等,1964,1966),试验地土壤 pH7.0左右,水溶性锰含量低于0.5毫克/公斤。在每公顷施厩肥25吨的基础上,每公顷条施硫酸
Due to the lack of trace elements, the tuberous seed coat of the potato becomes rough, cracked, degrading the quality of the product and creating an opportunity for spread of the potato scab and other infections. Some studies have shown that trace elements can reduce tuber infection scab. Much research has been done on the role of manganese, which is actually consistent with the conditions that contribute to the occurrence of the scab and the factors that cause manganese deficiency. Studies were conducted at West Scotland Agricultural College (A.I. McGregor et al., 1964, 1966) with soil pH around 7.0 and water-soluble manganese content below 0.5 mg / kg. On the basis of 25 tons of manure per hectare, sulfuric acid is applied per hectare