Lara Cabezas WAR, Korndorfer GH, Motta SA (1997a) N[H.sub.3]-N
volatilization in corn crop: II- evaluation of solid and fluid sources under no-tillage and conventional systems.
Based on the previously said, this work aims at evaluating the losses of N to the atmosphere by
volatilization of ammonia (N[H.sub.3]) in pig slurry treatment systems, with and without the presence of aquatic plants, as well as the concentration of ammonium (N[H.sub.4.sup.+]) present in pig slurry, with the hypothesis that aquatic plants are able to reduce the concentration of N[H.sub.4.sup.+] present in swine manures, as well as to reduce losses of N by N[H.sub.3]
volatilization.
Uncertainty in model results originates from estimating the
volatilization factor for various appliances and from subsequent transfer of contaminant to adjacent compartments.
Given the above, this study aimed to evaluate N losses through N[H.sub.3]
volatilization and quantify upward and downward N[O.sup.-.sub.3] flows in Latosol cultivated with coffee (Coffea arabica L.), fertilized with conventional urea and NBPT-treated urea.
These soluble fractions were acidified to pH 2 to 3 to avoid possible loss through ammonia
volatilization, and then evaporated to dryness.
Therefore, nocturnal aeration is capable to significantly reduce the concentrations of [H.sub.2]S in water by
volatilization.
Cation exchange capacity (CEC), pH, buffering capacity and SOM content are important factors that influence ammonia losses by
volatilization (KNOBLAUCH et al., 2012).
It focus on researching the effect of pyrolysis char in tar cracking and analyzing the mechanism in the cases of different pyrolysis temperature, heating rate, the
volatilization of pyrolysis char, particle size and the modified pyrolysis char.
In addition, biochar is also known to reduce nitrogen loss from the soil in terms of [N.sub.2]O emission and N[H.sub.3]
volatilization [35, 36].
However, the total ammonia
volatilization was not increased when the proportion of NBPT was more than 0.5%.
Keywords: Nitrogen content, manures,
volatilization, open lots.
However, control samples exposed in open containers also decreased BOD levels, likely due to
volatilization of volatile contaminants.
