Abstract Controlled-release nitrogen fertilizer (CRNF) can effectively enhance crop yields and raise the efficiency of in agroecosystems. In present study, volatilization NH 3 was determined by airflow enclosure chamber technique after application different CRNF rates double-cropping rice fields southern China for continuous years. The early late season (ESR LSR) were cultivated each year. resu...

Using value-added products such as compost in farming systems could enable optimization of nitrogen (N) fertilizers whose world-wide demand is on the increase. The objectives this study were to: (i) produce through co-composting rice husk (RH) with chicken dung slurry (CDS), feed, and molasses, (ii) determine effects optimum rate urea RH minimizing ammonia (NH3) volatilization, (iii) total N, e...

Nitrogen fertilizer in the form of urea is subject to ammonia volatilization through the activity of the urease enzyme found ubiquitously in soil (Kissel et al., 2008). Nitrate fertilizer is subject to leaching (Randall et al., 2008) or denitrification (Coyne, 2008), depending on the water content of the soil and water movement through the soil. Ammonium forms of N can be fixed (Kissel et al., ...