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This field experiment investigated wheat's response to nitrogen application rates (0-120 kg/ha) and combined soil-foliar nitrogen application methods (soil application, 95%+5% foliar, 90%+10% foliar, 85%+15% foliar). Results showed that 120 kg N/ha significantly improved grains/spike (55.4), thousand grain weight (43.6g), biological yield (10977 kg/ha), grain yield (4265 kg/ha), harvest index (39.75%), grain protein (11.3%), and straw protein (2.8%). Meanwhile, 85% soil + 15% foliar application outperformed other methods, yielding grains/spike (59.2), thousand grain weight (43.1g), biological yield (9947 kg/ha), grain yield (4129 kg/ha), harvest index (42.30%), grain protein (11.5%), and straw protein (2.6%). The interaction between nitrogen rates and application methods significantly affected various yield parameters. The study recommends 120 kg N/ha with 85% soil + 15% foliar application for maximum wheat productivity.
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