Skip to main content
Article thumbnail
Location of Repository

THE EFFECTS OF TEA WASTES ON SOIL ENZYME ACTIVITY AND NITRIFICATION

By Sevinç ARCAK, A. Cihat KÜTÜK, Koray HAKTANIR and Gökhan ÇAYCI

Abstract

The research was carried out on tea wastes supplied from factories of General Directorate of Tea Enterprises. The aim of this study is to determine the effects of composted, enriched composted tea wastes along with coarse and fine tea wastes released by tea factories processing raw tea leaves into black tea, on soil enzyme activity and nitrification. Tea wastes were applied to pots of 200 g-soil capacity, at the rate of 0 %, 2.5 % and 5.0 % of the pot capacity in addition, 200 µg/g N, in the form of ammonia sulphate, was given to each pot. Soils were analysed for enzyme activities at the end of 1., 7., 14., and 28. day of incubation. Amount of NH+4 N and NO-3 N were determined for nitrification at the end of 1., 7., 14. and 28. day of incubation. Urease enzyme activity increased, depending on coarse and fine tea waste doses at the incubation periods of 1., 2. and 3. weeks, but decrease was monitored at 4.. week of the incubation. Whereas, alkaline phosphatase enzyme activity increased throughout the incubation period. The amount of NH+4 N in the soil diminished depending on different tea wastes and doses, yet NO -3 N in the soil showed no significant augmentation

Topics: Çay atığı, Üreaz enzimi, Alkali fosfataz enzimi, Toprak, Nitrifikasyon, Engineering (General). Civil engineering (General), TA1-2040
Publisher: Pamukkale University
Year: 1997
OAI identifier: oai:doaj.org/article:ded582525a2e4ca5905851d37639e3dc
Journal:
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • https://doaj.org/toc/2147-5881 (external link)
  • https://doaj.org/toc/1300-7009 (external link)
  • http://dergipark.ulakbim.gov.t... (external link)
  • https://doaj.org/article/ded58... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.