The use of nitrogen fertilizers in agriculture is currently under high pressure to reduce its environmental impact and improve low efficiency. Nitrification inhibitors and/or intercrops emerged recent decades as useful tools combat these problems. objective the experiment study effect techniques on yield, efficiency (NUE) N leaching a maize–wheat rotation. Six treatments were studied, combining...

This study aimed to investigate the effects of mixed biochar on the nitrification rate in acidic soils. A 15N tracer experiment with (15NH4)2SO4 was conducted to determine the nitrification rates of four acidic agricultural soils with pH 4.03–6.02 in Yunnan Province, Southern China. The accumulation of 15N-NO3− and nitrification rates decreased with the addition of biochar at the end of incubat...

Batch nitrification tests were conducted with sludge and wastewater streams obtained from field implementations to evaluate nitrification inhibition and efficiency of a nitrifiers bioaugmentation technology at full-scale municipal wastewater treatment plants (WWTPs). The results showed that the substrate organic carbon and pH of wastewater streams were inhibitory factors to nitrification and th...

Winter wheat is a widely cultivated crop that requires high inputs of nitrogen (N) fertilization, which often connected with N losses. The application fertilizers nitrification (NI) and urease inhibitors (UI) an opportunity to eliminate the risk losses improve availability plants. aim this study compare effect conventional containing nitrogen-transformation as well evaluate timing their on whea...

Partial nitrification was reported to be technically feasible and economically favorable, especially for wastewaterwith high ammonium concentration or low C/N ratio. In this study, the effect of dissolved oxygen (DO)and influent ratio of chemical oxygen demand to nitrogen (COD/N) ratio on biological nitrogen removal fromsynthetic wastewater was investigated. Experiments were c...

A combination of high performance size exclusion chromatography with organic carbon detector and ultraviolet detector coupled with peak-fitting technique and fluorescence excitation-emission matrix spectrometry applied fluorescence regional integration method was conducted to determine the characteristics of organic matter during nitrification. The batch scale of bionet nitrification without or...

Abstract Brachiaria humidicola (syn. Urochloa ) has been acknowledged to control soil nitrification through release of inhibitors (NI), a phenomenon conceptualized as biological inhibition (BNI). Liming and N fertilization features agricultural intensification may suppress BNI performance, due decrease in NI exudation, increased NH 3 availability promotion ammonia oxidizing bacteria (AOB) over ...

We investigated the response in nitrification to organic carbon (C) availability, the interactive effects of the C: nitrogen (N) ratio and organic N availability, and differing pH in sediments from several streams in the upper midwestern United States. In addition, we surveyed 36 streams to assess variability in sediment nitrification rates. Labile dissolved organic carbon (DOC) additions of 30...