Effect of chemical and bio nitrogen fertilizer on yield and yield components of soybean under intercropping with maize
Paper Details
Effect of chemical and bio nitrogen fertilizer on yield and yield components of soybean under intercropping with maize
Abstract
In order to study the effect of chemical and bio nitrogen fertilizer on yield and yield components of soybean at intercropping system of maize, an experiment was conducted at the Research Farm of the Faculty of Agriculture, University of Tabriz, Iran in 2012. The factorial set of treatments was arranged in a Randomized Complete Block Design, with three replications and two factors. The factors were represented by the following; different planting patterns factor: pure stand of maize (7plant/m2), pure stand of soybean (40plant/m2) and additive intercropping of optimal density of maize + 100% of optimum density of soybean. Second factor included: five levels of N fertilizers; control, 50 and 100Kg/ha urea chemical fertilizer, 50 Kg/ha urea + Bio-super bio-fertilizer and Bio-super bio-fertilizer. Results showed that sole soybean produced the highest grain and biological yield. Among the intercropping systems, sole soybean recorded the highest mean pod per plant and grain number per plant. Significant increase was observed in all characters in combined use of N fertilizer and Bio-super bio-fertilizer. Considering the experimental findings, sole cropping and combined use of Bio-super bio-fertilizer with 50Kg/ha N chemical fertilizer recommended for soybean grain yield.
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