作　　者： (陈美丽）; (顾绘）;

机构地区： 南通科技职业学院,江苏226007

出　　处： 《长江蔬菜》 2017年第18期140-143,共4页

摘　　要： 设置4个氮素水平,研究氮素对芋生长发育及产量的影响。试验结果表明,氮素水平与芋株高、叶面积、地上部鲜质量和地下子孙芋鲜质量均呈极显著正相关关系;增施氮肥有利于提高单个子芋和孙芋的质量,但过高的施氮量水平会使产量下降,本试验条件下,最适宜的施氮量水平为260 kg/hm^2,此时子孙芋的最大产量可达15 436.4 kg/hm^2。 Four nitrogen application levels were set up to investigate the effects of different nitrogen rates on growth and yield of taro. The results showed that plant height, leaf area, fresh weight of leaves and stem, and fresh weight of were all very significantly and positively correlated with nitrogen application level. The yield of the first grade cormel and second grade cormel increased with the increasing of nitrogen application, but high nitrogen application level would decrease the yield. In this study, the most suitable nitrogen application level was 260 kg/hm2, while the highest yield reached to15 436.4 kg/hm2.

关 键 词： 芋 氮素 生长 产量