Effect of different factors on nitrogen solubility of coated urea
Effect of different factors on nitrogen solubility of coated urea
Y.X.eZhu; H.J.Xiu; Wang XiaoLi; H.N.anZu
Journal of Zhejiang University Agriculture and Life Sciences 27(3): 307-310
2001
Two forms of coated urea (CU1, CU2) consisted of granule urea coated with high molecular polymer in different thickness were used to study the effect of soil moisture, ion concentration and temperature on nitrogen solubility. Results indicated that the nitrogen solubility of CU was affected by soil moisture contents and ion concentration of soil solution. Nitrogen release rate hardly changed when soil moisture reached to saturation or more.