%0 Journal Article
%T Study on the characteristics of nutrient releasing of the coated urea with tung oil as controlling materials<br>桐油包膜尿素养分释放机理的研究
%A SHI Wei-Sheng
%A LUO Xiao-Lin
%A TANG Hui
%A WANG Ya-Ming
%A <br>施卫省
%A 罗小林
%A 唐 辉
%A 王亚明
%J 中国生态农业学报
%D 2006
%I 
%X The captive test in the water and the potted planting experiment were used to study the nutrients releasing dynamics of polymer-coated-released fertilizer. The result shows that the preliminary solubility rate of nitrogen of tung oil-coated urea is 12.6% in the soil and 20.1% in the water meaning that tung oil is a preferable coating materials. The ratio of the releasing periods in the water to in the soil is 1:1.2. The kinetics equation of LOGISTIC could be used to express the nutrient release characteristics. The nitrogen release rate can be reflected by the velocity coefficient k.
%K Tung oil coating materials
%K Coated urea
%K Controlled release<br>桐油包膜材料
%K 包膜尿素
%K 缓释性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=1A8B5357F0EF07B8&jid=AB3ABF502E2E1FF39F0E3B80164C9031&aid=F3DB80CB9C7599FA&yid=37904DC365DD7266&vid=F3583C8E78166B9E&iid=E158A972A605785F&sid=91C9056D8E8856E0&eid=480C51B1F0CE0AB6&journal_id=1671-3990&journal_name=中国生态农业学报&referenced_num=0&reference_num=6