61，Shavir A,Mikkelsen R L.Controlled-release fertilizers to efficiency of nutrient use and minimize environmental degradation-A review.Fertilizer Research,1993,35:1～12
72，Kochba,Malka.,Gambash,Sharon.et al.Studies on slow release fertilizers:I.Effects of temperature,soil moisture and water vapor pressure.Soil Science,1990,149(6):339～343
83，Oertli J J,Lunt O R.Controlled release of fertilizer minerals by incapsulating membranes:I.Factors influencing the rate of release.Soil Science Society Proceedings,1962,pp.579～583
94，VVyas B N,Mistry K B.Hydrolysis of prilled urea, sulphur-coated urea and urea supergranules in an oxisol, vertisol and inceptisol.Indian Journal of Agricultural Science,1985,55(1): 35～40
105，Friedman S P,Mualem Y.Diffusion of fertilizers from controlled-release sources uniformly distributed in soil.Fertilizer Research,1994,39:19～30
