Effects of 17-year fertilization on soil microbial biomass C and N and soluble organic C and N in loessial soil during maize growth

Maize yield and soil fertility with combined use of compost and inorganic fertilizers on a calcareous soil on the North China Plain

“…Numerous studies have shown that the addition of organic manures exerts multiple benefits on crop productivity and soil fertility including improvement of soil structure (Six et al, 1999;Rasool et al, 2008) and stimulation of nutrient availability and microbial activity resulting in high yields (Liang et al, 2011;Mohamed et al, 2008) and carbon sequestration Cai and Qin, 2006). In the present study soil aggregates did not change significantly (data not shown), likely due to the relatively short-term experimental period.…”

The impact of exogenous N supply on soluble organic nitrogen dynamics and nitrogen balance in a greenhouse vegetable system

“…4). It was significantly higher than that in a cropland reported by Liang et al (2011) and in a forest reported by Xing et al (2010).…”

“…This finding was confirmed by Ros et al (2009), who reported that the application of chemical N fertilizer increased the SON by 17%. However, Liang et al (2011) found that the addition of chemical N fertilizer alone did not increase the SON content over 17 years in a wheat-maize rotation system. Overall, the effect of chemical N fertilizer on the content of soil SON remains inconclusive.…”

Impacts of Fertilization Type on Soil Microbial Biomass and Nutrient Availability in Two Agroecological Zones of Ghana

“…The high rate of fertilizer application in DF relative to GS sites partly as a result of farmers' low economic status [25], enhanced the growth of vegetation in DF and subsequently resulted in an increased SOM contents. The soluble C compounds from SOM consequently induced microbial biomass community [26]. This finding was supported by significant relationships between the rate of fertilizer application and soil microbial biomass indicators (Table 3).…”