Hossein Monjezi; Mohammad Moradi Telavat; Seyyed Ataollah Siadat; Ahmad Koochakzadeh; Hassan Hamdi
Abstract
Filter mud is a residual of sugar extraction process produced in huge volume and has high organic matter and essential elements. Regarding to these properties, it seems this material could be a useful fertilizer in crop production. To evaluate effect of sugarcane filter muds and chemical and biological ...
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Filter mud is a residual of sugar extraction process produced in huge volume and has high organic matter and essential elements. Regarding to these properties, it seems this material could be a useful fertilizer in crop production. 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 (Mollasani) Agriculture and Natural Resources University of Khouzestan. A complete block design was used for the experiment in three replications. Different integrated treatments of filter muds and chemical fertilizers including A1: 100 percent filter muds, A2: 75 percent filter muds and 25 percent chemical fertilizers, A3: 50 percent filter muds and 50 precent chemical fertilizers, A4: 25 percent filter muds and 75 percent chemical fertilizers and A5: 100 percent chemical fertilizers were investigated as an experimental factor. Other experimental factor was biological fertilizers application (with and without biological fertilizers). The biological fertilizers investigated in this study were included nitroxin and Barvar 2. Application of filter muds had significant effects on canola yield, yield components, grain oil and protein contents. The soil organic matter and salinity also were affected by filter muds significantly. Highest canola grain yield was obtained by integration of filter muds and chemical fertilizers. Increase of filter muds caused to increase of grain oil content and decrease of nitrogen and nitrate content. On the other hand, increase of chemical fertilizers increased nitrate and nitrogen contents and decreased oil content. In addition, increase of filter muds resulted in higher soil organic matter and salinity, simultaneously.