不同前作植烟土壤质量评价及其与烟叶质量的相关性研究

李新如, 谢晏芬, 朱宣全, 王戈, 白羽祥, 杜宇, 周鹏, 赵宇婷, 朱红琼, 杨帆, 肖志文, 王文波, 方志鹏, 韩家宝, 王娜

Soil Quality Evaluation and Its Correlation with Tobacco Leaf Quality under Different Previous Crops

Li Xinru, Xie Yanfen, Zhu Xuanquan, Wang Ge, Bai Yuxiang, Du Yu, Zhou Peng, Zhao Yuting, Zhu Hongqiong, Yang Fan, Xiao Zhiwen, Wang Wenbo, Fang Zhipeng, Han Jiabao, Wang Na

图3 结构方程模型模拟前茬作物对土壤理化性质及烟叶品质影响的路径图 箭头上方框数值为不同特征间路径系数（相关系数），“*”、“**”分别表示在0.05、0.01水平上差异显著，没有则为不显著；TN为全氮，TVA为总植物碱，S:N为糖氮比，N:A为氮碱比，AK为速效钾，TP为全磷，TK为全钾，WSA为水稳性大团聚体，TWSA为全水稳性团聚体。

Fig.3 The path map of structural equation model was used to simulate soil physicochemical properties and tobacco quality of previous crops The value of the box on the arrow is the path coefficient (correlation coefficient) between different features.“*”and“**”respectively indicate the significant difference at the level of 0.05 and 0.01, and if there is no significant difference, it is not significant; TN is total nitrogen, TVA is total vegetative base, S:N is the ratio of sugar to nitrogen, N:A is the ratio of nitrogen to base, AK is the available potassium, TP is the total phosphorus, TK is the total potassium, WSA is water stable macroaggregates, and TWSA is the total water stable aggregates.