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首页> 外文期刊>Soil Science and Plant Nutrition >Soil and tuber calcium affecting tuber quality of processing potato (Solanum tuberosum L.) cultivars grown in Hokkaido, Japan
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Soil and tuber calcium affecting tuber quality of processing potato (Solanum tuberosum L.) cultivars grown in Hokkaido, Japan

机译：影响北海道加工马铃薯块茎质量的土壤和块茎钙，日本北海道种植的品种

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Calcium (Ca) nutrition for potato (Solanum tuberosum L.) is important to increase tuber Ca concentration and improve potato tuber yield and quality. High tuber Ca content among other benefits mitigates incidence of blackspot bruise through maintenance of membrane health and regulation of biochemical reactions that leads to potato tuber discoloration. However, growers avoid application of Ca fertilizer in potato production in the belief that it causes potato common scab in Hokkaido, Japan. This study was conducted in Hokkaido to determine the current status of soil Ca and tuber Ca content levels, and its effect in mitigating incidence of potato bruise. Soil and tuber samples were collected from 90 and 80 fields in Tokachi and Kamikawa districts, respectively, in 2013 and 2014. Soil samples were analyzed for base saturation, Ca saturation, and exchangeable Al. Tuber Ca content and susceptibility of tubers to bruising were also evaluated. This study found that (1) 81% and 76% of soils collected from Tokachi and Kamikawa district, respectively, were deficient in Ca level, (2) tuber Ca content was lower than the reported value (250 mg kg(-1)) considered to mitigate incidence of bruise, and (3) incidence of bruise were influenced by both tuber specific gravity and Ca content. There is urgent need to apply Ca fertilizer to attain increased soil Ca levels and improve quality of tubers.
机译：马铃薯（Solanum Tuberosum L.）的钙（CA）营养对增加块茎Ca浓度并改善马铃薯块茎产量和质量是重要的。高块茎CA含量在其他益处中，通过维持膜健康和对生物化学反应的调节来减轻黑色瘀伤的发病率，导致马铃薯块茎变色。然而，种植者避免在马铃薯生产中应用CA肥料，以至于它导致日本北海道的马铃薯常见的结痂。本研究在北海哥进行，确定土壤CA和块茎CA含量水平的当前状态，及其对薯片瘀伤发病率的影响。分别于2013年和2014年从Tokachi和Kamikawa区的90和80个田地收集了土壤和块茎样品。分析土壤样品进行基础饱和，CA饱和度和可更换的Al。还评估了块茎CA含量和铲斗瘀伤的易感性。本研究发现，（1）分别从Tokachi和Kamikawa区收集的81％和76％的土壤缺乏Ca水平，（2）块茎Ca含量低于报告的值（250 mg kg（-1））考虑减轻瘀伤的发生率，并且（3）瘀伤的发生率受块茎比重和Ca含量的影响。迫切需要应用CA肥料以获得增加的土壤CA水平，提高块茎的质量。

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