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Studies on the range of production limits and control scheme for greenouse soils.

Research Project

Project/Area Number 04454101
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 農業気象・生物環境制御学
Research InstitutionUniversity of Tsukuba

Principal Investigator

YAMAGUCHI Tomoharu  Inst.of Agric.& Forst Eng., University of Tsukuba Assistant Prof., 農林工学系, 講師 (40015839)

Co-Investigator(Kenkyū-buntansha) ABE Yukuo  Inst.of Agric.& Forst Eng.Associate Prof., 農林工学系, 助教授 (70015808)
Project Period (FY) 1992 – 1994
Project Status Completed (Fiscal Year 1994)
Budget Amount *help
¥6,300,000 (Direct Cost: ¥6,300,000)
Fiscal Year 1994: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1993: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1992: ¥3,000,000 (Direct Cost: ¥3,000,000)
Keywordsgreenhouse soils / soil ions / salt accumulation / salt capturing / range of production limits / control scheme
Research Abstract

Degradation of soils, including salt accumulation, is one of the seriou problems on agricultural production, particularly greenhouse culture for vegetables and flowers in Japan. This problem still remains as one of the major subjects in horticulture to be solved.
In this report, we firstly analyzed some physical factor and chemical components of soils collected from three types of greenhouses with diferent periods of usage. From the analytical results with the ion chromatography, atomic absoption and spectrophotometry, there are significant relations in 5 % levels between the value of EC,accumulated rates of anion (SO_4^-, NO_3^-, Cl^-) and cation (Ca^<2+>, Mg^<2+>, K^+), and the ysage periods of greenhouse soils. Then, we tried to estimate the range of production limits for greenhouse soils using the yearly increasing rate of EC and some ionic contents calculated from the experimental results. Finally, as a countermeasure to the salinization caused in grenhouse soils, we have developed a new method to capture the salts accumulated on the surface of soil with using the sheet materials attached on the soil surface. Some basic characteristics for solute transport, and the amount of salts captured on the sheet, are experimentally observed with three different types of sheets.

Report

(4 results)
  • 1994 Annual Research Report   Final Research Report Summary
  • 1993 Annual Research Report
  • 1992 Annual Research Report
  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] 山口智治,安部征雄: "栽培利用年数を異にするハウス土壌の物理性について(仮題)" 農業施設. (発表予定).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 山口智治,安部征雄: "土性および乾燥環境条件による塩類捕集シートの効率(仮題)" 農業施設. (発表予定).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 山口智治,安部征雄: "栽培利用年数を異にするハウス土壌の化学性について(仮題)" 農業施設. (発表予定).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.Yamaguchi, Y.Abe et al.: "On the Changes of Chemical Components of Ggreenhouse Soils depending on Ageing." J.of Aric.Structures, Japan. (under preparation).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.Yamaguchi, Y.Abe et al.: "On the Changes of Physical Components of Ggreenhouse Soils depending on Ageing." J.of Aric.Structures, Japan. (under preparation).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.Yamaguchi, Y.Abe et al.: "Efficiency of Salt-Capture-Sheets influenced with the the Composition of Soil and Drying Environment." J.of Aric.Structures, Japan. (under preparation).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 山口智治,安部征雄: "栽培利用年数を異にするハウス土壌の化学性について(仮題)" 農業施設. (発表予定).

    • Related Report
      1994 Annual Research Report
  • [Publications] 山口智治,安部征雄: "栽培利用年数を異にするハウス土壌の物理性について(仮題)" 農業施設. (発表予定).

    • Related Report
      1994 Annual Research Report
  • [Publications] 山口智治,安部征雄: "土性および乾燥環境条件による塩類捕集シートの効率(仮題)" 農業施設. (発表予定).

    • Related Report
      1994 Annual Research Report
  • [Publications] 山口 智治: "土壌表層に集積する塩類の捕集法" 平成5年度日本沙漠学会講演要旨集.

    • Related Report
      1992 Annual Research Report
  • [Publications] 山口 智治: "乾燥地・半乾燥地における土壌環境計測装置の開発と利用" 平成5年度日本沙漠学会講演要旨集.

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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