钾肥用量和追肥时期对抗黑胫病红花大金元烟叶化学成分及产量和质量的影响

夏玉兰, 王德勋, 赵园园, 范志勇, 李娟, 王阁, 赵志豪, 史宏志

Effects of Potassium Fertilizer Dosage and Topdressing Period on Chemical Composition, Yield and Quality of Leaves ofBlack Shank-Resistant Tobacco Honghuadajinyuan

Xia Yulan, Wang Dexun, Zhao Yuanyuan, Fan Zhiyong, Li Juan, Wang Ge, Zhao Zhihao, Shi Hongzhi

表5 不同钾肥用量和追肥时期对烤烟上部叶物理特性的影响

Table 5 Effects of different potassium fertilizer dosages and topdressing periods on the physical characteristics of upper leaves of flue-cured tobacco

处理 Treatment 叶长 Leaf length (cm) 叶宽 Leaf width (cm) 叶面积 Leaf area (cm2) 厚度 Thickness (mm) 单叶重 Single leaf weight (g) 叶质重 Leaf density (g/m2) 含梗率 Midrib ratio (%) A1B1 57.27bcd 17.87bcd 649.36cd 0.1240e 11.22cd 74.13ef 26.92abc A1B2 60.67a 19.80a 762.20a 0.1503a 12.68a 83.52a 24.08e A1B3 58.80ab 18.07bc 674.17bc 0.1323bc 12.39ab 77.87cd 25.27de A2B1 56.47bcd 16.73ef 599.44ef 0.1197f 11.02de 73.23f 27.88a A2B2 58.07bc 18.47b 680.53b 0.1360b 12.37ab 81.13b 25.38d A2B3 57.23bcd 17.33de 629.29de 0.1283cd 11.51c 75.78de 26.28cd A3B1 55.00d 16.57f 578.25f 0.1117g 10.67e 67.81h 27.72ab A3B2 57.20bcd 17.97bc 652.19bcd 0.1267de 12.08b 78.48c 26.11cd A3B3 56.37cd 17.50cd 625.92de 0.1247de 11.26cd 70.31g 26.51bcd F(A) 24.67** 86.84** 135.96** 218.09** 55.12** 164.98** 24.88** F(B) 18.87** 142.81** 172.24** 382.38** 186.13** 354.85** 66.35** F(A×B) 0.99 6.48** 7.25** 25.56** 4.99** 4.18* 1.66