DU Jian-jun, WU Yong-long, TIAN Ji-lin, et al. Effect of Several Controlled/Slow-Release Fertilizers on Decreasing Ammonia Volatilization and N Leaching[J]. 2007, 21(2): 49-52.
DU Jian-jun, WU Yong-long, TIAN Ji-lin, et al. Effect of Several Controlled/Slow-Release Fertilizers on Decreasing Ammonia Volatilization and N Leaching[J]. 2007, 21(2): 49-52.DOI:
Static absorption and soil column leaching methods were used to study ammonia volatilization and N leaching characteristics from six controlled/slow-release fertilizers. The results showed that all the controlled/ slow-release fertilizers decreased ammonia volatilization and N leaching in varying degrees. Total ammonia volatilization of six controlled-release fertilizers decreased by 16.62%
23. 78%
32. 15%
0. 11%
16.59% and 37.78% than common urea respectively
and N leaching amount of the fertilizers decreased by 15.84%
38.27%
68. 87%
46.17%
52.51% and 62.01% than common urea respectively. The results also indicated that ammonia volatilization from controlled/slow-release fertilizers was closely related to soil urease activity and pH value.