Examining Farmland Applications of Composted Biosolid Wastes Depending on Nutrient Balance in Soils

Yu Yu Liu, Tsuyoshi Imai, Masao Ukita, Masahiko Sekine, Takaya Higuchi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

This study emphasizes nutrient balance of soils in the farmland application of composted biosolid wastes. The loading rates of plant nutrients following the compost application to farmland in Japan were estimated and compared with the nutrient uptake of agricultural plants. Results show that the current compost application in Japan can meet the requirements of agricultural plants for plant nutrient Ca, except for K, Mg, P, Fe, Mn, Cu, and Zn. The compost application could realize the safe disposal of biosolid wastes and the effective recycling of plant nutrients in composts to soils without causing heavy metal accumulation. The application manner of composts affects the heavy metal accumulation in farmlands. Field examination indicates that the excessive compost application has led to the heavy metal accumulation in compost-amended farmlands. Measuring the nutrient balance in compost-amended farmlands is well suitable for explaining the accumulation of heavy metals, such as Cu and Zn.

Original languageEnglish
Pages (from-to)153-168
Number of pages16
JournalJournal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes
Volume39
Issue number1
DOIs
Publication statusPublished - 2004 Mar 16

Keywords

  • Composted biosolid wastes
  • Heavy metal accumulation
  • Nutrient balance in soils

ASJC Scopus subject areas

  • Food Science
  • Pollution

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