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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 2. 西表島産土壌

http://hdl.handle.net/20.500.12000/22034
http://hdl.handle.net/20.500.12000/22034
d1b1038d-1c9c-4f4f-b9ab-2b6abf067a11
名前 / ファイル ライセンス アクション
No3p147.pdf No3p147.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2011-11-07
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 2. 西表島産土壌
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. The Spurway Soil Test Kit was used for preliminary testing on soils from 22 locations in Iriomote Island for the same purpose as the previous report. 2. Magnesium was well supplied in all soil samples. Therefore, soils in Iriomote Island may not be deficient in magnesium. 3. Soil samples in several localities gave low reserve test results for iron which indicate the possibility of iron deficiency for plants. Further, soils which indicated the toxic level for iron were not found. 4. Low reserve test results for manganese were given in several soil samples. These results indicate the risk of the manganese defiiciecy. On the other hand, high test results for manganese which indicate toxic for plants were not found. The use of sea water may be suggested for such manganese deficient soils. 5. Test results for sulfates were negative in most 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 ppm. 6. Tests other than above elements were also made, and the results are summarized as follows: a) Most soils were low in nitrogen content. It is suggested that they need nitrogen fertilizers for most crops. b) All soils except one were very low in phosphorus content. One soil gave high reseve test results, 15 ppm. It is suggested that the fixed phosphorus through past several phosphate fertilizer applications gave such high reserve test result for phosphorus. c) High reserve test results for potassium were given in all soil samples. So it is pointed out that the more investigation of the extract method and precipitation procedure for potassium are necessary. d) Many soil samles gave low calcium test results which indicate the need of the calcium fertilization for high lime crops. e) High chloride test results were given in some soil samples. It is supposed that those samples might be contaminated with sea water on the way of the shipping by boat from Yaeyama Islands. f) Aluminum and nitrites were all below toxic levels. 7. Other elements besides the above were not examined because the Spurway Soil Test Kit does not have 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/20.500.12000/22034
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. 147-160
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