栽培密度对优质鲜食型甘薯农艺性状及产量的影响

为了探讨不同密度处理对优质鲜食型甘薯农艺性状和产量的影响,选用优质鲜食型甘薯品种广薯87和福薯8号开展研究。结果表明:不同密度水平对2个甘薯品种的蔓长、蔓重、单株结薯数、单株薯重及商品薯率等主要农艺性状均有重要影响,2个品种表现不一;在不同密度水平下福薯8号产量水平部分间达极显著性差异,其中以5.4万株/hm~2的栽培密度时,其产量最高达45 562.50 kg/hm~2,不同栽培密度水平下广薯87无显著性差异。2个甘薯品种需选择适宜的栽培密度进行种植才能达到高产、高效。

Effects of Planting Density on Agronomic Traits and Yield of High Quality Fresh Edible Sweet Potato

In order to investigate the effect of different density treatment on the agronomic traits and yield of high quality fresh edible type sweet potato, Guangshu No.87 and Fushu No.8 were tested under different density treatments. The results showed that the vine length, vine weight, the number of tuber per plant, tuber weight per plant and the commodity potato rate and other major agronomic traits changed significantly under different planting density of the two sweet potato varieties The yield of Fushu No.8 was significantly different and that of 87 was not significantly different under different planting density. It meant that appropriate planting density was beneficial to achieving high yield and high efficiency of the two sweet potato varieties.