
TY  - JOUR
A1  - Zhuang, S. Y. 
A1  - Yin, B. 
A1  - Zhu, Z. L. 
T1  - Simulating the effectiveness of surface film on water evaporation and ammonia volatilisation
JF  - Soil Research
JO  - Soil Res.
Y1  - 2002
VL  - 40
IS  - 7
SP  - 1243
EP  - 1248
KW  - half-life, logistic equation
UR  - https://doi.org/10.1071/SR01027 
N2  - The application of surface films to flooded rice fields is one of the most effective measures of controlling ammonia volatilisation for improving nitrogen use efficiency. The feasibility of using a surface film is determined to some extent by the longevity of the effectiveness and this has never been estimated accurately in the field. The concept of half-life was introduced to estimate the effective life of a surface film by calculation from its effect on water evaporation. A simple laboratory experiment was carried out to validate the usefulness of the half-life concept. The results showed that effects on ammonia volatilisation could be quantified using a logistic equation based on the half-life concept. 
ER  -

