| 胡树平,高聚林,王志刚,安玉麟,于海峰,马捷,李君,张玮.向日葵不同种植模式群体根系特征差异性研究[J].干旱地区农业研究,2013,31(2):42~46 |
| 向日葵不同种植模式群体根系特征差异性研究 |
| Variability of root characteristics in sunflower under different planting modes |
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| DOI：10.7606/j.issn.1000-7601.2013.02.09 |
| 中文关键词: 种植模式 向日葵 产量 根系 |
| 英文关键词:growth mode sunflower yield root |
| 基金项目:公益性行业(农业)科研专项经费项目(nyhyzx07-016) |
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| 中文摘要: |
| 在2008、2009年向日葵需肥规律、播期、密度、抗旱性比较等单项试验的基础上，2010年在内蒙古农业大学科技园区对以上试验结论进行技术组装集成，并与传统农户种植模式进行比较试验，以进一步明确不同栽培模式下向日葵根系发育特性，并对根系特征差异进行分析。研究结果表明：不同种植模式产量存在显著差异，油葵、食葵集成模式下分别增产18.58%、
23.28%；集成模式的根系干物质积累最大速率出现时间提前，速率增大，持续时间长，0～20 cm土层根系分布90%左右，根系趋于下扎；集成模式的群体根体积、根长、根活跃吸收面积等均大于农户模式，且全生育期最大值大于农户模式。 |
| 英文摘要: |
| Based on the single experiments of fertilizer requirement, seeding date, density and drought resistance of sunflower in 2008 and 2009, this experiment was conducted in Inner Mongolia Agricultural University Science Park in 2010 by using the integrated technology and the traditional planting mode as treatments, so as to analyze the effects of different cultivation modes on the characters of root development in sunflower. The results showed that the outputs under different planting modes we
re significantly different each other. Under the integrated technology, the yields of oil and edible sunflower were increased by 18.58% and 23.28% respectively, the time with the maximum rate of root dry matter accumulation was earlier, the rate of
root dry matter accumulation was higher, the duration period of root dry matter accumulation was prolonged, the distribution of root system was deeper, and the root bulk, root length, root
active absorbing area and their peak values were wholly increased, as compared to the traditional mode. |
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