冀北冷凉山区藜麦栽培密度研究

Study on Cultivation Density of Quinoa in Cold and Cool Mountainous Areas of Northern Hebei

为明确栽培密度对藜麦农艺性状及产量的影响,在河北省隆化县中关镇开展了藜麦栽培密度研究。结果表明:不同栽培密度株高变化不大;冠径高、冠径长和冠径宽随着栽培密度的增加呈递减趋势;穗粒重各行距处理间差异不明显,株距处理间差异明显。从产量结果来看,行株距30 cm×25 cm(密度133 339.52株/hm^(2))、40 cm×20 cm (密度125 007.03株/hm^(2))、40 cm×15 cm (密度166 675.51株/hm^(2))条件下产量相对较高,分别为2 033.33、1 837.50、1 750.00 kg/hm^(2);穗宽、叶绿素、根长、根鲜重、根干重、茎鲜重、茎干重、叶片数量及千粒重等性状在不同栽培密度条件下差异不明显。

In order to clarify the effect of cultivation density on agronomic characters and yield of quinoa, the cultivation density of quinoa was studied in Zhongguan Town, Longhua County, Hebei Province. The results showed that plant height changed little at different cultivation densities. The crown diameter height, crown diameter length and crown diameter width showed a decreasing trend with the increase of cultivation density. The difference of grain weight per ear was not obvious among row spacing treatments, but obvious among plant spacing treatments. From the perspective of the yield results, under plant spacing and row spacing conditions of 30 cm ×25 cm(density of 133 339.52 plants/hm^(2)),40 cm×20 cm(density of 125 007.03 plants/hm^(2)), 40 cm ×15 cm(density of 166 675.51 plants/hm^(2)), the yields were relatively higher, which were 2 033.33, 1 837.50, 1 750.00 kg/hm^(2), respectively. There was no obvious difference in the characters of panicle width, chlorophyll, root length, root fresh weight, root dry weight, stem fresh weight, stem dry weight,leaf number and thousand-grain weight under the condition of different cultivation densities.