生分解性高分子による遅効性肥料の調製  [in Japanese] Fertilizer Microencapsulated with Biodegradable Polymer  [in Japanese]

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Abstract

Many fertilizers are soluble in water, therefore their effect does not last for long time after fertilizing in soils. The nitrogenous fertilizers such as urea transported to groundwater cause serious agricultural contamination and health problems. To solve these problems, sustained release of fertilizer has attracted much attention. In this study, we attempted to prepare polylactide microcapsules with fertilizer by phase separation technique, which was a method of microencapsulation. Polylactide (PLA) was used as a biodegradable polymer bacause the biodegradable polymer has no influence on the soil and the ecosystem. The effect of preparation conditions such as stirring time and fertilizer concentration on morphology of microcapsule and on cumulative percentage released of enclosed urea was also investigated.

Journal

  • Journal of the Faculty of Environmental Science and Technology,Okayama University

    Journal of the Faculty of Environmental Science and Technology,Okayama University 7(1), 127-131, 2002-03

    岡山大学環境理工学部

Codes

  • NII Article ID (NAID)
    120002313894
  • NII NACSIS-CAT ID (NCID)
    AN10529213
  • Text Lang
    JPN
  • Article Type
    departmental bulletin paper
  • Journal Type
    大学紀要
  • ISSN
    13419099
  • NDL Article ID
    6237038
  • NDL Source Classification
    ZV1(一般学術誌--一般学術誌・大学紀要)
  • NDL Call No.
    Z22-B196
  • Data Source
    NDL  IR 
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