世界竹藤通讯2024，Vol.22Issue(4)：24-28,34,6.DOI:10.12168/sjzttx.2024.07.29.001
施用钾肥对筇竹幼苗生长及叶片SPAD值的影响
Effect of Potash Application on Growth and Leaf SPAD Value of Qiongzhuea tumidinoda Seedlings
摘要
Abstract
Four potash fertilizer application treatments are set up for 1-year-old Qiongzhuea tumidinoda seedlings:75,150,225,and 300 kg/ha,with no fertilizer as the control(CK),to explore the effects of different potash fertilizer application treatment on the seedlings growth and the contents of chlorophyll and nitrogen in their leaves.The results find that:1)the application of potash could significantly promote the growth of ground diameter and height of Q.tumidinoda seedlings,and the ground diameter and the height of seedlings in all potash treatments are better than those in the CK.Among them,the potash application treatment of 150 kg/ha has the best effect,resulting in a 35.87%increase in ground diameter and 57.35%increase in height compared to the CK;and 2)With the increase of potash application amount,the SPAD value and the nitrogen content in leaves show a trend of first increasing and then decreasing,and reach their maximum value at 150 kg/ha.Considering the factors of ground diameter,height,leaf SPAD value and nitrogen content of Q.tumidinoda seedlings,the optimal potash application amount should be 150 kg/ha for Q.tumidinoda seedlings cultivation in the experimental area.关键词
筇竹/苗木培育/钾肥施用量/光合效率Key words
Qiongzhuea tumidinoda/seedling cultivation/potash application amount/photosynthetic efficiency引用本文复制引用
黎卫东,董文渊,钟欢,付廷轩,段继霞,孙建业,浦婵,李鑫..施用钾肥对筇竹幼苗生长及叶片SPAD值的影响[J].世界竹藤通讯,2024,22(4):24-28,34,6.基金项目
云南省省级林业科技推广项目(2023ts02) （2023ts02）
云南省董文渊专家基层科研工作站项目(云南省董文渊专家基层科研工作站项目). （云南省董文渊专家基层科研工作站项目）
