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利用玉米中玉15为研究材料,研究了氮肥用量和追肥方式对玉米产量和肥料利用效率的影响。结果表明,各施氮处理与不施氮肥地上部生物量存在显著差
Using maize jade 15 as research material, the effect of nitrogen fertilizer rate and top dressing mode on corn yield and fertilizer use efficiency was studied. The results showed that there was a significant difference between the above nitrogen fertilization and the aboveground biomass without nitrogen fertilizer