熱帯地域における土壌肥沃度の回復のための下水汚泥の利用

• AYADE Benedict Bengyoushuye

  <I>Department of Botany and Microbiology, University of Ibadan</I>

• ENEJI Anthony Egrinya

  <I>Department of Crop Science, University of Calabar</I>

• OLUKAYODE Babajide

  <I>Department of Botany and Microbiology, University of Ibadan</I>

書誌事項

タイトル別名

• The Use of Sewage Sludge for Soil Fertility Restoration in the Tropics.
• Use of Sewage Sludge for Soil Fertility Restoration in the Tropics

抄録

In view of the ever rising cost of inorganic fertilizers, the possibility of improving soil ferility with sewage sludge was investigated in Ibadan, Nigeria. The dry sewage sludge was obtained from the University of Ibadan sewage treatment plant and tested on a soil that had been continuously cultivated for over ten years without fertilizer application. Six rates of the sludge (5, 10, 15, 20, 25 and 30 t/ha) and a control (no sludge application) were used for the trial, while maize (Zea mays L.) was the test crop. Soil analysis before and after sludge application was carried out to determine the magnitude of the changes in soil fertility. Sludge application increased the level of soil organic matter by 66%, the contents of total N and available P by 27%, the content of exchangeable Ca by 40% and that of exchangeable K by 31%. Soil pH declined slightly by 6%. Maize height, stem girth and grain yield were significantly increased by sludge application. Sludge application beyond the rate of 15 t/ha did not exert significant changes in either the level of soil nutrients or maize yield.

収録刊行物

• 熱帯農業

  熱帯農業 43 (3), 145-148, 1999

  日本熱帯農業学会

キーワード

• 下水汚泥
• 土壌肥沃度
• 熱帯

詳細情報

• CRID: 1390282681337213952
• NII論文ID: 130004373679
• NII論文ID: 110003709712
• NII書誌ID: AN00199779
• DOI: 10.11248/jsta1957.43.145
• ISSN: 21850259
• ISSN: 00215260
• NDL書誌ID: 4859887
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4859887
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可