| # | Document title | Authors | Year | Source | Cited by |
| 1 | Dynamics of ammonia volatilization losses in wetland soil following the broadcasting application of urea amended with phenyl phosphorodiamedate | Phongpan S., Vacharotayan S., Vacharotayan S., Kumazawa K. | 1988 | Soil Science and Plant Nutrition
34(1),pp. 127-137 | 3 |
| 2 | Acid sulfate soils: their characteristics, genesis, amelioration and utilization. | Attanandana T., Vacharotayan S. | 1986 | Southeast Asian Studies (Kyoto)
24(2),pp. 154-180 | 21 |
| 3 | Fate and efficiency of urea fertilizer in wetland rice soil | Phongpan S., Vacharotayan S., Vacharotayan S., Kumazawa K. | 1988 | Soil Science and Plant Nutrition
34(1),pp. 117-126 | 3 |
| 4 | Efficiency of urea and ammonium sulfate for wetland rice grown on an acid sulfate soil as affected by rate and time of application | Phongpan S., Vacharotayan S., Kumazawa K. | 1988 | Fertilizer Research
15(3),pp. 237-246 | 3 |