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  1. 紀要論文
  2. 琉球大学農家政学部学術報告
  3. 4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 5. 沖縄島北部産土壌

http://hdl.handle.net/20.500.12000/22042
http://hdl.handle.net/20.500.12000/22042
2b15a9b8-ec73-45cd-8a29-ae0080530b1e
名前 / ファイル ライセンス アクション
No4p180.pdf No4p180.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 5. 沖縄島北部産土壌
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. One hundred and ninty-seven soil samples from fifty-nine localities in northern Okinawa were taken and tested by the Spurway Soil Test Method 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. These tests indicated that soils from northern Okinawa contained less Mg^<++> than those from southern Okinawa. 3. The soluble iron test in slightly alkaline soils was negative same as the soils in southern Okinawa. Even in acid soil, there were many samples showing low test with the reserve test which indicate the possibility of iron deficiency. 4. In the case of manganese (Mn^<++>), many samples gave low test which indicates the possibility of manganese deficiency for plants. There were no samples showing toxic level of soluble manganese. 5. Test for sulfates (S0_4^<-->) were negative in all of the soil samples. This indicates S04^<--> content is below toxic level. 6. Tests of other than the above elements were also made and the results are summarized as follows: a) NO_3^- and NH_4^+ content are generally low in almost all soil samples. b) Phosphorus content in most soil samples was very low and many of them gave less than 1 ppm. by the reserve test. c) Many samples showed less than 20 ppm. by the reserve test for potassium. However, samples from three localities gave abnormally high test by the reserve method which were considered as a result of past heavy fertilization. d) Ca^<++> content in most soil samples except the ones derived from palaeozoic limestone, Ryukyu Limestone and alluvial deposits were generally low which indic:tte the need of lime application for most high-lime requiring crops. e) Al^<+++>, Cl^- and NO_2^- were all below toxic levels. 7. Elements other than the above were not checked 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/20.500.12000/22042
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 4, p. 180-200
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