• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Soil Microbial Activity and Effect of Compost Application on Crop Production

Research Project

Project/Area Number 02454041
Research Category

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

Allocation TypeSingle-year Grants
Research Field 作物
Research InstitutionTottori University (1991)
Kyoto University (1990)

Principal Investigator

NAKANO Junichi  Tottori University, Fuc. Agriculture, Associate, 農学部, 助教授 (20032641)

Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥4,000,000 (Direct Cost: ¥4,000,000)
Fiscal Year 1991: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1990: ¥3,300,000 (Direct Cost: ¥3,300,000)
KeywordsCompost application / Carbon dioxide evolution / Soil microbial activity / Soil organic matter / Soil temperature / Soil water content / 土壌有機物分解速度 / 酵素反応速度論 / 温度
Research Abstract

Sustaining or increasing soil productivity depend in part on soil and crop management practice that maintain or increase soil organic matter. Degradation of soil organic matter is very important to establish reasonable methods of fertilizer and manure application to crop field and preservation of natural environment. The quantitative prediction of carbon dynamics in soil plays an important role in establishment to those methods.
The compost application experiments in experimental field of Kyoto University were carried out. The effects of compost application on the yield of forage crops, corn-barley rotation, were examined. The results obtained through experiments and quantitative analysis can be summarized as follows.
(1) The time course of carbon dioxide evolution obtained from wet soil incubation experiment under constant temperature (9, 22.5, 37.5 ゚C) was well approximated by simple model as described below. S = S0 (1 - exp (-k・ t))
(2) Using the above equation, Arrhenius' low k = A・exp(-Ea / R・T), characteristic parameters such as S0, k, Ea and soil temperature T, degradation of soil organic carbon under field condition was estimated. The estimated value of soil carbon content were approximately equal to the value of soil analysis at each harvest time.
(3) Carbon dioxide evolution was related to soil moisture. Carbon dioxide evolution was maximum at the optimum soil moisture condition(24 to 37 % dry soil weight), and carbon dioxide evolution decreased when soil moisture was more dry or wet than optimum condition.
(4) Using the data of soil moisture of experimental field, correction factor was calculated. And then, the corrected value of annual degradation rate of soil carbon decreased at 6 % compared with non-corrected value.

Report

(3 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (7 results)

All Other

All Publications (7 results)

  • [Publications] 中野 淳一: "飼料作物畑における土壌有機物の動態について" 近畿作物・育種研究. 36. 13-14 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 中野 淳一: "飼料作物畑における土壌中全炭素の推定と予測" 日本草地学会誌. 38. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Nakano, Junichi: "Estimation of Soil Carbon Accumulation in Forage Crop Field." Rep. Soc. Crop Sci. Breed. Kinki. 36. 13-14 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Nakano, Junichi, Onishi, Masao and Hasegawa, Tosihiro: "Estimation of soil carbon accumulation in Forage Crop Field." J. Japan. Grassl. Sci.38. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 中野 淳一: "飼料作物畑における土壌有機物の動態について" 近畿作物・育種研究. 36. 13-14 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 中野 淳一: "飼料作物畑における土壌中全炭素の推定と予測" 日本草地学会誌. 38. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 中野 淳一: "飼料作物畑における土壌有機物の動態について" 近畿作物・育種研究. 36. (1991)

    • Related Report
      1990 Annual Research Report

URL: 

Published: 1990-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi