1. Black, A S, Sherlock, R R, Cameron, K C, Smith, N P and Goh, K M 1985. Comparison of three field methods for measuring ammonia volatilization from urea granules broadcast onto pasture. J. Soil Sci. 36:271–280.
2. Bouwmeester, R J B and Vlek, P L G 1981. Rate control of ammonia volatilization from rice paddies. Atmos. Environ. 15:131–140.
3. Bowmer, K H and Muirhead, W A 1987. Inhibition of algal photosynthesis to control pH and reduce ammonia volatilization from rice floodwater. Fert. Res. 13:13–29.
4. Byrnes, B G, Savant, N K and Craswell, E T 1983. Effect of a urease inhibitor phenyl phosphorodiamidate on the efficiency of urea applied to rice. Soil Sci. Soc. Am. J. 47:270–274.
5. Cai, G X 1986. Ammonia volatilization from fertilizers applied to flooded rice field. In: Agricultural Chemistry and Soil Biology and Biochemistry Committees, Soil Science Society of China (eds.), Advances and Prospects for Soil Nitrogen Research in China. (in Chinese). pp. 55–67. Science Press, Beijing.