甬优1540是近年浙西南山区的单季稻主推品种，不同施氮水平与种植密度的试验结果表明，甬优1540需氮肥量较大，施足氮肥是增产的关键；在相同的施肥量下，不同密度对产量的影响不显著。生产上，蔬菜与水稻轮作田在施足磷、钾的前提下，以纯氮105 kg/hm2、种植密度18.5万/hm2为宜。

 Yongyou 1540 is the main variety of single-season rice in southwest Zhejiang province in recent years. The results of different nitrogen application rates and planting densities showed that the nitrogen fertilizer requirement of Yongyou 1540 is large, and the application of enough nitrogen fertilizer is the key to increase yield. Under the same fertilizer application rate, the effect of different planting densities on yield was not significant, but the nitrogen fertilizer application rate had a very significant effect on the yield. In production, under the premise of applying enough phosphorus and potassium in vegetable-rice rotation field, the suitable pure nitrogen was 105 kg/hm2, and planting density was 185 000 /hm2.