无机有机复合包膜尿素缓释效应研究

Slow Release Effect of Different Kinds of Inorganic and Organic Coated Urea

通过油菜盆栽试验研究了2种多年筛选的无机有机复合包膜肥料对油菜的生长及其氮素释放的影响。通过测定土壤中的速效N,P,K,油菜生物量,Vc,硝酸盐,还原糖,叶绿素等,对包膜肥料进行评价。结果显示,从油菜产量来看,包膜尿素生物量比尿素有所降低。这与材料的性质有关,油菜的生育期较短,而有机材料包膜养分在短期内不能释放,所以导致了产量降低。从油菜的品质来看,包膜肥料能够提高油菜Vc、还原糖、叶绿素的含量,降低硝酸盐的含量。

The effect of 2 different kinds of coated urea on rape growth was studied by pot experiment. These coated fertilizers were appraised from their impact on available N,P, K, biomass of rape, Vc, content of nitrate, chlorophyll content,content of reducing sugar. The result showed that the biomass of rape with applying urea was lower than that of coated urea. This is related to the properties of materials, the growth period of rape was short, while the organic material coating nutrients in the short term cannot be released.Think about the quality of rape, coated urea can improve Vc content, sugar content, chlorophyll content, reduce nitrate content.