MEASURMENT OF EFFECT LEVELS ON UREASE ENZYME ACTIVITY IN SOILS UNDER DIFFERENT INCUBATION TIMES
A factorial experiment was conducted in laboratory using complete randomize design (CRD) to study the effect of urea fertilizer levels on urease enzyme activity and available nitrogen in Bashika and Al-hawi soils under different incubation times. Results showed a significant increases in...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
College of Agriculture
2018-12-01
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| Series: | Mesopotamia Journal of Agriculture |
| Online Access: | https://magrj.mosuljournals.com/article_161556_3ab11bd35011eac2a6da89438dbaa982.pdf |
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| Summary: | A factorial experiment was conducted in laboratory using complete randomize design (CRD) to study the effect of urea fertilizer levels on urease enzyme activity and available nitrogen in Bashika and Al-hawi soils under different incubation times. Results showed a significant increases in enzyme activity in Bashika soil as compared with Al-hawi soil of 25.93%. 100kgN.h-1 gave a significant increasing in enzyme activity as compared with 200 kgN.h-1 of 15%. Enzymes activity was increased with increasing incubation time till to 30 days, then after a significant depression in enzyme activity was noticed.<br /> Bashika soil gave a significant increases in available nitrogen as compared with Al-hawi soil of 23.55%. 200 kgN.h-1 gave a significant increases in available nitrogen as compared with 100 kgN.h-1 of 27.48%. Available nitrogen was increased with increasing incubation time till 45 days, which gave 53.34 ppm. However a significant decreases was noticed at 60 days of incubation. |
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| ISSN: | 1815-316X 2224-9796 |