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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 1. 石垣島土壌(追補)

http://hdl.handle.net/20.500.12000/21950
http://hdl.handle.net/20.500.12000/21950
99d9e46b-cb89-4851-a7bd-bf011e524b87
名前 / ファイル ライセンス アクション
No3p139.pdf No3p139.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2011-10-18
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 1. 石垣島土壌(追補)
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. As a supplement of the previous report, soil samples from 10 locations in Ishigaki Island were tested by Spurway Soil Test Kit for the purpose stated in the previous report. 2. All of the soil samples contained 3 to 6 p.p.m. of magnesium. 3. Soil samples in four locations gave low reserve test results for iron which indicate the possibility of iron deficiency for crops. The upper horizons have a tendency to show a low content in iron. This suggests that in the early stages of growing plants, an iron deficiency may be found. 4. Samples from five locations gave low active test results in manganese which indicate the possibility of mangaese deficiency. 5. Test results for sulfates were negative in all soil samples. However, soils may not be deficient in sulfur because the lower limit of the sulfate test of the Spurway Soil Test Kit is 20 p.p.m. 6. In addition to the tests on above elements, the following tests of elements were made: a) Most soil samples showed low test results for available nitrogen. b) All soils except one were also low in phosphorus content which indicate the need for heavy phosphorue fertilization. One sample gave a high test result. It is supposed that the fixed phoshorus resulting from past phosphorus fertilizer applications might have caused such a high test result. c) Generally, most soil samples gave high reseve test results in potassium. However, these same samples gave negative test results for active potassium. Therefore, short period crops or crops which have weak absorption power of potassium may need soluble potassium fertilizers. d) Aluminum, chlorides and nitrites were all below toxic levels. 7. Other elements besides the above were not examined 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/20.500.12000/21950
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. 139-146
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