Effect of nitrogen and phosphorus on soybean yield and nutritive value
2005
Nedic, M., Faculty of Agriculture, Belgrade - Zemun (Serbia) | Zivanovic, Lj., Faculty of Agriculture, Belgrade - Zemun (Serbia) | Kolaric, Lj., Faculty of Agriculture, Belgrade - Zemun (Serbia) | Vukovic, Z., Institute Tamis, Pancevo (Serbia) | Jovanovic, B., Institute Tamis, Pancevo (Serbia)
The objective was to study the effect of different amounts and rates of nitrogen and phosphorus on yield and quality of soybean using inoculated and non-inoculated seeds. The experiments were conducted on the chernozem soil type of the trial sites of the Institute Tamis, Pancevo (Serbia) during 2003 and 2004. Based on the results obtained it can be concluded that on average higher soybean yield was achieved (by 70 kg/ha, 1.4% only) using inoculated compared with non-inoculated sees variant. On average, in both trial years nearly all nitrogen and phosphorus variants showed a small but positive effect on soybean seed yield. The highest increase ranging from 6,2% (N100P35 non-inoculated variant) to 9.1% (also N100P35 but in inoculated seeds variant) was noted in the variant using a combination of both nitrogen and phosphorus. The year 2004 compared with 2003 may be considered more favourable for soybean production because a higher seed yield was achieved (on average by 1.69 t/ha, 41,3%). The application of different amounts and rates of N and P nutrition had no significant effect on the changes in the protein and oil content (ranging on average from 31.7-32.8% for proteins and 20.8-21.4% for oil) in soybean seeds compared with the control variant.
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