Development of a quality certification and maturity classification method for liquid fertilizer by measuring the electrical conductivity (EC) of swine manure

Joshua Nizel Halder, Taek Won Kang, Mitsuyasu Yabe, Myung Gyu Lee

研究成果: Contribution to journalArticle査読

2 被引用数 (Scopus)

抄録

The increasing need for liquid fertilizers along with the high production and treatment rate of swine manure pose a great concern in regard to the quality control and certification of fertilizers rapidly produced. In this study, 66 liquid manure samples were collected from national livestock manure co-recycling centers. These 66 samples were tested and classified into three categories based on Liquid Fertilizer Germination Index (LFGI). In addition, the physiochemical parameters of manure specimens were tested, including pH, NaCl, total sulfur (TS), total nitrogen (TN), ammonium-nitrogen (NH -N), nitrate-nitrogen (NO-N), total phosphorus (TP), potassium (K), and electrical conductivity (EC). EC had a positive correlation with TN (0.879), NH-N (0.816), K (0.693), and NaCl (0.625) with a significance of p < 0.01 but a negative correlation with LFGI (-0.719). This study demonstrated that EC could be used as an indicator in rapid testing methods for quality control to certify the maturity level of liquid manure fertilizers.

本文言語英語
ページ(範囲)205-212
ページ数8
ジャーナルJournal of the Faculty of Agriculture, Kyushu University
62
1
出版ステータス出版済み - 2 2017

All Science Journal Classification (ASJC) codes

  • バイオテクノロジー
  • 農業および作物学

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