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  1. 紀要論文
  2. 琉球大学農家政学部学術報告
  3. 3号
  1. 部局別インデックス
  2. 農学部

琉球産土壤の微量要素に関する研究 1. Spurway Soil Test Kit による予備試験 3. 宮古島産土壌

http://hdl.handle.net/20.500.12000/22008
http://hdl.handle.net/20.500.12000/22008
5f8a0978-b24e-4b8e-a744-fcd9bc18350c
名前 / ファイル ライセンス アクション
No3p161.pdf No3p161.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2011-11-04
タイトル
タイトル 琉球産土壤の微量要素に関する研究 1. Spurway Soil Test Kit による予備試験 3. 宮古島産土壌
言語 ja
作成者 鎮西, 忠茂

× 鎮西, 忠茂

ja 鎮西, 忠茂

Chinzei, Tadashige

× Chinzei, Tadashige

en Chinzei, Tadashige

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
内容記述
内容記述タイプ Other
内容記述 1. Fifty soil samples from seventeen localities in Miyako Island were tested by Spurway Soil Test Kit for the same purpose as in the previous reports. 2· Magnesium was contained moderately in most soil samples, so there is little possibility of magnesium deficiency. However, tow samples of the first horizon gave negative, or trace test results, which indicate that much magnesium has been lost from the top soil which are naturally high in magnesium. 3. Two samples gave negative, or trace reserve test results for iron which indicate the possibility of iron deficiency. 4. In the case of manganese, samples from thirteen locations of seventeen localities gave negative, or trace active test results. The other four samples also gave low test results. Therefore, there is high possibility of manganese deficiency in most of these soils. 5. Test results for sulfates were negative in all of the soil samples. However, soils may not always be deficient in sulfur because the lower limit of the sulfate test of the Spurway Soil Test Kit is 20 ppm. 6. Test other than above elements were also made and the results are summarized as follows: a) Slightly higher test results of available nitrogen in most of the soil samples were obtained when compared with previous samples. b) Phosphorus content in most soil samples were very low, but two samples gave high test results. One of the two gave extremely high reserve test result, abnormally so-100 ppm., but its cause is unkown. c) Active test results for potassium were negative in most soil samples, and when compared to Ishigaki and Iriomote Islands there were a greater number of samples containing less than 20 ppm. d) In spite of the fact that the Miyako Island soils are developed from lime stone or marl, a comparatively large number of soil samples gave low test results for calcium. It is suggested that even in Miyako Island, acid-soil crops may be grown in some place, if they are shallow-rooted crops. And also in the early growing stages of high-lime crops, consideration for lime fertilization might have to be paid. e) Aluminium, chlorides and nitrites were all below toxic levels. 7. Elements other than the above were not checked because the Spurway Soil Test Kit does not include such testing methods.
内容記述タイプ Other
内容記述 紀要論文
出版者
言語 ja
出版者 琉球大学農家政学部
言語
言語 jpn
資源タイプ
資源タイプ departmental bulletin paper
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ NA
出版タイプResource http://purl.org/coar/version/c_be7fb7dd8ff6fe43
識別子
識別子 http://hdl.handle.net/20.500.12000/22008
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0370-4238
収録物識別子タイプ NCID
収録物識別子 AN0025056X
収録物名
言語 ja
収録物名 琉球大学農家政学部学術報告
書誌情報
号 3, p. 161-169
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