TY - JOUR JF - JSTNAR JO - jwss VL - 14 IS - 54 PY - 2011 Y1 - 2011/1/01 TI - The Trend of CO2 Production and Alteration of Microbial Biomass Carbon in Soils Treated With Urea Fertilizer and Broiler Litter TT - روند تولید 2CO و تغییر کربن بیومس میکروبی در خاک‌های تیمار شده با کود اوره و مرغی N2 - The addition of organic and inorganic substrates to calcareous soils low in organic matter and nitrogen contents may change soil microbial biomass and activity. In order to investigate the effect of chemical and organic fertilizers on soil CO2 production and microbial biomass C, a field experiment was conducted under maize cultivation. The experimental design was split-plot arranged in randomized complete blocks with 7 treatments including 3.8, 7.6 and 11.5 ton ha-1 broiler litter and 100, 200 and 300 kg nitrogen ha-1 from urea and a control with 4 replications. The results showed that fertilizer, manure and sampling day had a significant effect (P SP - 97 EP - 110 AD - KW - CO2 flux KW - Microbial biomass carbon KW - Metabolic quotient KW - Arid and Semi arid soils UR - http://jstnar.iut.ac.ir/article-1-1455-en.html ER -