Dynamic Changes of Nutrients in Different Growth Stages of Trichosanthes kirilowii in Shishou City  

作　　者：Fengyun XIANG Xiaomin PEI Tianya LIU Qinyun GAO Aomingyang LI Shiping GUO Qifei FU Jifu LI 

机构地区：[1]College of Agriculture,Yangtze University,Jingzhou 434025,China [2]Jingzhou Agricultural Technology Extension Center,Jingzhou 434020,China [3]Hubei Zhuangcheng Agricultural Technology Development Co.,Ltd.,Shishou 434400,China [4]Shishou Agricultural and Rural Bureau,Shishou 434400,China

出　　处：《Meteorological and Environmental Research》2024年第5期63-69,共7页气象与环境研究（英文版）

基　　金：Unveiling Project of"Advanced Technology Integration Demonstration Base Construction and Targeted Research and Development"in Pioneer Counties of Shishou City(SS202307).

摘　　要：To explore the relationship between soil nutrients,plant nutrients,and the growth and development of Trichosanthes kirilowii,the soil pH,organic matter,available nitrogen,available phosphorus,available potassium content,and leaf total nitrogen,total phosphorus,total potassium,and SPAD in different growth stages of T.kirilowii in the main production area of Shishou City were measured and analyzed.The changes in soil nutrient content and leaf nutrient content at different growth stages of T.kirilowii were compared,and correlation analysis was conducted.The results showed that the average soil pH,organic matter content,alkaline nitrogen content,available phosphorus content,and available potassium content during the entire growth period of T.kirilowii were 7.03,14.01 g/kg,98.79 mg/kg,14.84 mg/kg,and 135.20 mg/kg,respectively;the average total nitrogen content,total phosphorus content,total potassium content,and SPAD of the leaves were 0.55%,0.23%,1.78%,and 77.66,respectively.The nutrient dynamics of T.kirilowii at different growth stages exhibited certain regularity,with most nutrients reaching their maximum values during the flowering and fruiting stages,and then showing a decreasing or stabilizing trend.There was a varying degree of correlation between the nutrient content of leaves and soil,among which the nitrogen,phosphorus,and potassium contents of leaves were significantly or extremely significantly correlated with soil organic matter and alkaline nitrogen content.It can be seen that the nutrient abundance or deficiency level of soil in T.kirilowii field significantly affected the nutrient content of the leaves at different growth stages,thereby restricting its growth and development status.

关 键 词：Trichosanthes kirilowii Soil nutrients Leaf nutrients Dynamic changes Correlation analysis 

分 类 号：S161[农业科学—农业气象学]