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

表3 化肥减量配施有机肥对烤烟根系生长的影响

Table 3 Effects of chemical fertilizer reduction combined with organic fertilizer on root growth of flue-cured tobacco

时期 Stage 处理 Treatment 根尖数 Root tip number 根表面积 Root surface area (cm2) 根体积 Root volume (cm3) 根长 Root length (cm) 根干重 Root dry weight (g) 移栽后45 d 45 days after transplanting CK 7468.33±588.08b 524.27±37.19b 77.54±0.78b 3106.41±182.29c 4.96±0.14d T1 6473.66±505.20c 490.93±32.24b 75.75±1.62b 3036.79±203.95c 4.93±0.15d T2 8304.33±798.78a 706.47±56.46a 92.05±3.26a 5612.19±276.59b 7.33±0.17b T3 7140.33±408.78b 671.66±41.69a 80.95±3.64b 3362.09±232.05c 6.07±0.12c T4 8410.33±281.76a 655.82±51.10a 85.40±1.53ab 6452.76±482.78a 8.06±0.23a 移栽后70 d 70 days after transplanting CK 16 863.00±1021.04ab 3257.10±169.10b 351.38±19.27a 8973.32±434.70c 10.24±0.14d T1 15 439.33±938.74b 2266.73±136.71d 231.21±9.02c 8327.30±239.15c 10.17±0.18d T2 17 768.87±1135.81a 3513.90±310.87b 364.23±19.30a 10 862.19±665.61b 13.10±0.23b T3 14 618.00±1058.47c 2635.52±209.24c 288.49±15.39b 10 484.94±599.72b 11.33±0.33c T4 17 722.80±1119.58a 3993.55±257.92a 391.88±21.20a 12 764.11±777.78a 15.37±0.35a 移栽后95 d 95 days after transplanting CK 30 673.66±1487.31a 3806.78±265.38c 387.49±3.84b 10 497.15±768.43d 19.23±1.10b T1 23 336.33±1399.15b 3076.10±237.15d 306.73±6.68c 10 100.53±744.23d 16.26±0.75c T2 32 021.66±1253.93a 4799.53±317.93b 419.67±7.18b 15 016.46±459.11b 21.53±0.52a T3 29 417.00±1520.18a 3973.45±216.66c 330.63±4.04c 12 541.41±694.19c 16.93±1.05c T4 31 880.33±1606.85a 5432.30±450.74a 473.06±12.75a 16 794.07±742.18a 20.86±1.63ab