Estimation of Potential Supply of Livestock Waste Compost to Replace Chemical Fertilizer Use in Japan Based on 2000 Census of Agriculture
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- IKUMO Haruhisa
- Department of Kanto and Tokai Farming System Research, National Agricultural Research Center (NARC)
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説明
Legislation represented by the Livestock Waste Disposal Law and Compost Quality Control Law were enacted in order to reduce the excessive use of chemical fertilizer and disposal of untreated livestock waste. These laws encourage the replacement of chemical fertilizer use with livestock waste compost. The potential supply of nitrogen (N), phosphorus (P2O5) and potassium (K2O) from compost was estimated using computer software and prefectural and municipal data from the 2000 Census of Agriculture in Japan. Use of N, P2O5 and K2O as chemical fertilizer in Japan was also estimated by the questionnaire data by the Ministry of Agriculture Forestry and Fisheries and the 2000 Census of Agriculture. The percent of chemical fertilizer replaceable with livestock waste compost was calculated by dividing the supply from compost by the use of chemical fertilizer on the basis of N, P2O5 and K2O. Average and range of replaceable percent was 20.4% (106.9-7.1%), 21.8% (105.3-7.0%) and 31.5% (124.1-7.6%) in N, P2O5 and K2O, respectively, among the 47 prefectures. The range in about 3,300 municipalities fluctuated between 2,047-0%, 3,762-0%, and 3,207-0% in N, P2O5 and K2O, respectively. The significance of the data is discussed in the text.
収録刊行物
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- Japan Agricultural Research Quarterly: JARQ
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Japan Agricultural Research Quarterly: JARQ 39 (2), 83-89, 2005
国立研究開発法人 国際農林水産業研究センター
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詳細情報 詳細情報について
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- CRID
- 1390282679677210752
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- NII論文ID
- 130003396689
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- ISSN
- 21858896
- 00213551
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
