واکنش عملکرد و جذب نیتروژن دانه‌ی کلزا به کود شیمیایی و تلفیقی نیتروژن

Filter mud is a residual of sugar extraction that produce in huge volume and has high organic matter and essential elements. With regarding to these properties, it seems this material can be a useful fertilizer in crop production. In order to evaluate effect of sugarcane filter muds and chemical and biological fertilizers application on canola (Brassica napus L.) yield and some of soil properties, a factorial experiment was conducted in 2012 in experimental farm of Ramin Agriculture and Natural Resources University of Khouzestan. A complete blocks design was used for the experiment with three replication. Different integrated treatments of filter muds and chemical fertilizers including A1: 100 % filter muds, A2: 75 % filter muds and 25 % chemical fertilizers, A3: 50 % filter muds and 50 % chemical fertilizers, A4: 25 % filter muds and 75 % chemical fertilizers and A5: 100 % chemical fertilizers was investigated as an experimental factor. Other experimental factor was biological fertilizers application (with and without bio-fertilizers). Interaction effect of fertilization and bio-fertilizers on canola dry matter was significant. Increase of filter muds and bio-fertilizers caused to increased dry matter. In addition, the NUE was increased while more amounts of filter muds were used.