Efficacy of rapeseed residue and eggshell waste on enzyme activity and soil quality in rice paddy

Sang Soo Lee, Samy A.M. Abd El-Azeem, Jung Eun Lim, Anushka Upamali Rajapaksha, Kwon Rae Kim, Young Han Lee, Yong Bok Lee, Yoon Young Chang, Yong Sik Ok

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Abstract

Addition of plant residue into soils improves soil physiochemical properties and its fertility. Rapeseed residue is an emerging N source to paddy soils via rice-rape double-cropping practice. The objective of this study was to evaluate the effects of rapeseed residue and eggshell waste on chemical changes and enzyme activity in the rice paddy soil. The powdered eggshells at 0, 1, 3, and 5% were applied once to 7.0 kg paddy repacked soils in each pot treated with the rapeseed residue or the conventional N, P, and K fertilisers. Eight rice seedlings (Oriza sativa L. cv. Ilmibyeo) (40 days after sowing) were transplanted to the treated each pot. The contents of total C (TC) and N (TN), and organic matter (OM) were significantly increased in soils treated with the rapeseed residue compared to the N, P, and K fertilisers. With the addition of eggshell containing ∼92% CaCO3, a considerable increase of soil pH was observed in soils treated with the rapeseed residue and the N, P, and K fertilisers, compared to the untreated soil. Activities of β-glucosidase, urease, and arylsulfatase enzymes were higher in soils treated with the rapeseed residue than soils treated with the N, P, and K fertilisers. The eggshell additions at 1, 3, and 5% into soils treated with the rapeseed residue increased enzyme activity mainly resulting from N mineralisation, whereas no change in enzyme activity was observed in the soils treated with the NPK fertiliser. The combined use of the rapeseed residue and the eggshells can be beneficial to improve soil environment.

Original languageEnglish
Pages (from-to)501-510
Number of pages10
JournalChemistry and Ecology
Volume29
Issue number6
DOIs
Publication statusPublished - 2013 Aug 1
Externally publishedYes

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Keywords

  • bioenergy crop
  • enzyme activity
  • rapeseed residue
  • rice paddy soil
  • soil quality

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

Cite this

Lee, S. S., Abd El-Azeem, S. A. M., Lim, J. E., Rajapaksha, A. U., Kim, K. R., Lee, Y. H., Lee, Y. B., Chang, Y. Y., & Ok, Y. S. (2013). Efficacy of rapeseed residue and eggshell waste on enzyme activity and soil quality in rice paddy. Chemistry and Ecology, 29(6), 501-510. https://doi.org/10.1080/02757540.2013.810725