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EFFECT OF TYPE OF ORGANIC MANURE AND CONCENTRATION ON THE ENZYMATIC ACTIVITIES OFSOME CALCAREOUS SOILS FROM NORTHERN IRAQ | ||
| Mesopotamia Journal of Agriculture | ||
| Article 30, Volume 45, Issue 1, 2017, Pages 349-366 PDF (505.24 K) | ||
| Document Type: Research | ||
| DOI: 10.33899/magrj.2017.161260 | ||
| Author | ||
| Rand Ghazal* | ||
| Soil and Water Resources Dept., College of Agriculture and Forestry, Mosul University. Iraq | ||
| Abstract | ||
| The effect of four sources of organic manures (alfalfa residue, cow, chicken and sheep) and their concentrations (0, 1 and 2%) on the enzymatic activity of three calcareous soils from Northern Iraq have been studied in a 45-day incubation experiment at 28C and 90% of the field capacity. During this period, the activity of urease, asparginase and glutaminase have been measured at a 2-week intervals. Results indicated that the more the concentration of the added manure, the more the activity of the enzymes. Addition of alfalfa residue resulted in more activity, followed by chicken manure, then sheep. The least effect was obtained in soils treated with cow manure. | ||
| Keywords | ||
| Organic manure; Soil enzyme; Calcareous Soil | ||
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