ZENG Weijun,CAO Guofan,LI Jinling,et al.Effect of Different Aspects on Nitrogen Content,Growth and Yield of Pseudostellaria heterophylla[J].Northern Horticulture,2018,42(15):159-164.[doi:10.11937/bfyy.20180537]
不同坡向对太子参氮含量、生长及产量的影响
- Title:
- Effect of Different Aspects on Nitrogen Content,Growth and Yield of Pseudostellaria heterophylla
- Keywords:
- aspect; Pseudostellaria heterophylla; nitrogen content; growth; yield
- 文献标志码:
- A
- 摘要:
- 以石竹科植物孩儿参种根为试材，采用东偏南19°（ES 19°）、西偏南46°（WS 46°）、西偏北76°（WN 76°）、坡顶（TOP）等不同坡向种植太子参，研究了不同坡向对太子参氮含量、生长和产量的影响。结果表明：WS环境下的太子参在其生长初期（4月）植株氮含量下降速度最快，为1.22 g·kg-1·d-1，具有较强的氮素利用能力，在其生长旺期（6月）具有较多的成熟叶片，较高的单株地下部干质量，光合作用能力、产量形成潜力较强；WS环境下的太子参产量较TOP、WN分别提升44.16%和47.08%；在大选太子参的中上部直径、单参干质量和中选太子参的长、单参干质量以及小选太子参的长商品等级划分指标中，WS环境下的太子参占有相对优势。不同坡向太子参氮含量、生长及产量存在着差异，综合考虑WS环境相对适宜于太子参的生长和其产量形成。
- Abstract:
- Pseudostellaria heterophylla root was used as the test material.Pseudostellaria heterophylla was planted in different slope directions (ES 19°,WS 46°,WN 76°,TOP).The effects of different slope orientations on nitrogen content,growth and yield of Pseudostellaria heterophylla were studied.The results showed that the nitrogen content of Pseudostellaria heterophylla in the early stage of growth (April) was the fastest,which was 1.22 g·kg-1·d-1，it had strong nitrogen utilization ability,and had more mature leaves in its high growth period (June),higher underground dry quality per plant,stronger photosynthesis ability and stronger potential for yield formation.The yield of Pseudostellaria heterophylla under WS environment increased by 44.16% and 47.08%, respectively,compared with that of TOP and WN.In the indexes of the middle and upper diameters,the single dry weight of the Pseudostellaria heterophylla,the long and single-parameter dry weights of the medium,and the long commodity grades of the lower,the Pseudostellaria heterophylla in the WS environment had a comparative advantage.There were differences in nitrogen content,growth and yield of Pseudostellaria heterophylla from different slopes.Comprehensive consideration of WS environment was relatively suitable for the growth and yield of Pseudostellaria heterophylla.
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备注/Memo
第一作者简介：曾维军（1994-），男，硕士研究生，研究方向为药用植物栽培。E-mail：478353921@qq.com.责任作者：曹国璠（1965-），男，博士，教授，现主要从事作物栽培学和生态农业教学与科研等工作。E-mail：cgf8933@126.com.基金项目：国家自然科学基金资助项目（31260305）；贵州大学2017年研究生创新资助项目（研农2017020）。收稿日期：2018-03-07