化肥减量配施有机肥对植烟土壤及烤烟根系生长的影响

钟国兴, 杨欣, 张少搏, 郭维, 杨启航, 李淮源, 陈建军, 陈晓恒, 黄瑞寅, 邓世媛

Effects of Chemical Fertilizer Reduction Combined with Organic Fertilizer on Tobacco-Planting Soil and Root Growth of Flue-Cured Tobacco

Zhong Guoxing, Yang Xin, Zhang Shaobo, Guo Wei, Yang Qihang, Li Huaiyuan, Chen Jianjun, Chen Xiaoheng, Huang Ruiyin, Deng Shiyuan

图7 变量间的皮尔逊相关分析 S-BD：土壤容重；S-TP：土壤孔隙度；S-MC：土壤含水率；S-OM：土壤有机质含量；S-ACPT：土壤蛋白酶；S-CAT：土壤过氧化氢酶；S-ACP：土壤酸性磷酸酶；S-SC：土壤蔗糖酶；S-UE：土壤脲酶；RL：根长；R-SA：根表面积；RV：根体积；R-TN：根尖数；R-DWT：根干重；R-ACT：根系活力。“*”表示显著相关（P < 0.05）。

Fig.7 Pearson correlation analysis between variables S-BD: Soil bulk density; S-TP: Soil porosity; S-MC: Soil moisture content; S-OM: Soil organic matter content; S-ACPT: Soil protease; S-CAT: Soil catalase; S-ACP: Soil acid phosphatase; S-SC: Soil sucrase; S-UE: Soil urease; RL: Root length; R-SA: Root surface area; RV: Root volume; R-TN: Root tip number; R-DWT: Root dry weight; R-ACT: Root activity.“*”indicates significant correlation (P < 0.05).