Excessive application of nitrogenous fertilizers has deteriorated the sustainable development of the earth's environment. Many researches focused on reducing the nitrogen (N) rate, but few studies concentrated on the stability of yield and nitrogen use efficiency (NUE) of different rice cultivars. We screened different rice genotypes (Super hybrid rice, Ordinary hybrid rice, and Commercial indica) under various N application rate (60, 120 kg N ha⁻¹in 2012 and 0, 120 and 210 kg N ha⁻¹ in 2013). Grain yield among different rice cultivars ranged from 7.6 to 9.2 t ha⁻¹ under N120 across both years. Relative to the N60 and N0, rice yield was increased by 1.50 ~ 27.56% at 120 kg N ha⁻¹. In 2013, the yield response of all rice cultivars was non-significant for 120 and 210 kg N ha⁻¹. However, HHZ performed well compared to the rest of cultivar under higher N (210 kg ha⁻¹) but the absolute values were not consistent in both years. Grain yield was significantly correlated with the dry matter at pre-heading and harvest index under different nitrogen applications and years. Based on principal component analysis, the yield and NUE of hybrid rice cultivars were more stable than the conventional rice cultivars. Therefore, hybrid rice cultivars are an efficient candidate for the green super rice and would contribute to rice breeding for saving N resources without sacrificing yield.

氮肥的过量施用，恶化了地球环境的可持续发展。许多研究集中在降低氮（N）率上，但很少有研究集中在不同水稻品种的产量稳定性和氮利用效率（NUE）上。我们（60，120公斤氮公顷筛选不同基因型水稻（超级杂交稻，普通杂交稻，和商业籼稻）下各种N-施用率^-1在2012年和0,120和210公斤氮公顷^-1 2013年）。在 N120 下，不同水稻品种的粮食产量在这两年的范围内从 7.6 到 9.2 t ha ^-1不等。相对于 N60 和 N0，120 kg N ha ^-1水稻产量增加 1.50 ~ 27.56%. 2013 年，所有水稻品种对 120 和 210 kg N ha ^-1的产量响应均不显着。然而，在较高氮（210 kg ha ^-1）下，HHZ 与其他品种相比表现良好，但这两年的绝对值并不一致。不同施氮年限下，籽粒产量与抽穗前干物质和收获指数显着相关。主成分分析表明，杂交水稻品种的产量和NUE比常规水稻品种更稳定。因此，杂交水稻品种是绿色超级稻的有效候选者，将有助于水稻育种，在不牺牲产量的情况下节约氮资源。