Issue Information
روزنامه با شماره پیاپی سال 1996
Pages
9
From page
291
To page
299
Abstract
The effects of cattle dung on soil microbial biomass (SMB) C and N were examined in grazed grassland. In a field study using artificially placed pats no effects on the SMB could be demonstrated even though concentrations of mineral N increased (P < 0.001) in the underlying soil. When dung was mixed with grassland soil under controlled conditions the size of the SMB increased (P < 0.001). Respiration rate also increased (P < 0.001) and specific respiration (q) was higher (P < 0.05) in soil treated with beef cattle dung than in that treated with dairy cow dung. The presence of added inorganic N (NH4NO3) had no further effect. The potential effects of dung on the SMB which were demonstrated under controlled conditions may therefore be diluted in field conditions.
Journal title
Reports on Mathematical Physics
Serial Year
1996
Journal title
Reports on Mathematical Physics
Record number
1990840
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