WANG Chao,WANG Chun-rong,CUI Huai-xian.Study on the Root Distribution of Juglans regia Under Intercropping[J].Northern Horticulture,2014,38(15):28-29.
间作条件下核桃根系田间分布特征研究
- Title:
- Study on the Root Distribution of Juglans regia Under Intercropping
- 文章编号:
- 1001-0009(2014)15-0028-02
- Keywords:
- Juglans regia; intercrop under forest; root distribution
- 分类号:
- S664.1
- 文献标志码:
- A
- 摘要:
- 以8年生嫁接早实核桃树为试材，采用剖面观察法，调查间作条件下不同深度根系的田间分布情况。结果表明：核桃根系在田间分布数量较多，其中以粗度2 mm以下的吸收根为主；根系在田间垂直方向上主要分布于10～60 cm土层，20～40 cm土层中根系分布数量最多，表现为随深度下降先上升后降低的变化规律；根系在田间水平分布上随距树干距离表现为先降低后增加的趋势；为减缓间作作物与核桃树体间的肥水竞争强度，间作作物种类选择应以根系分布深度在20 cm以内的浅根作物为宜，并应采取深施肥水的管理措施。
- Abstract:
- Taking 8-year-old Juglans regia as material,the root distribution under intercropping were measured in field through section observation.The results showed that,there were many roots in the field.The number of absorbing roots were maximum which coarseness was less than 2 mm.The main roots distribute in soil layer from 10 cm to 60 cm.The number of roots in the soil layer from 20 cm to 40 cm was maxium.It reduced first then increased with the depth decreased.The number of roots reduced first then increased in horizontal directions.In order to slow down the competition of roots,the shallow rooted plant whose roots distributes in the 20 cm soil layer should be selected the intercrop,the management of fertilizer and water should be strengthened.
参考文献/References:
［1］束怀瑞.果树栽培生理学［M］.北京:北京农业出版社,1993.
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备注/Memo
第一作者简介：王超（1972-），男，高级工程师，研究方向为森林生态。E-mail：lkywchao@163.com.