The effect of compaction on urease enzyme activity, carbon dioxide evaluation and nitrogen mineralisation

NAMLI A., BARAN A., Kaktanir K.

Turkish Journal of Agriculture and Forestry, cilt.24, sa.4, ss.437-441, 2000 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 24 Sayı: 4
  • Basım Tarihi: 2000
  • Doi Numarası: 10.3906/tar-97171
  • Dergi Adı: Turkish Journal of Agriculture and Forestry
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.437-441
  • Anahtar Kelimeler: Carbon dioxide evaluation, Compaction, Nitrogen mineralisation, Urease enzyme activity
  • Ankara Üniversitesi Adresli: Evet

Özet

The effects of compaction on urease enzyme activity, carbon dioxide evaluation and nitrogen mineralisation of urea-treated and untreated soils were investigated. Soils were compacted at compaction levels of O kgcm-2, 2 kgcm-2 and 4 kgcm-2 and incubated for 28 days. The changes in urease enzyme activity, CO2 evaluation and nitrogen mineralization were determined during incubation periods. Urease enzyme activity was decreased significantly (P<0.05) in all samples, but it was observed that there was a negative effect of compaction on urease enzyme activity and CO2 evaluation in urea-treated soils. Depending on incubation periods, urea-treated soils had 5 times more NH4 +-N and 4 times more NO3 --N than untreated soils. Furthermore, compaction induced mitrification in both groups (P<0.05).