Effects of Topping Time and Method on Economic Traits and Quality of Flue-cured Tobacco

doi:10.11923/j.issn.2095-4050.cjas2023-0154

Abstract

Abstract:

In order to clarify the effects of topping time and topping method on the yield and quality of flue-cured tobacco, a field experiment was carried out in Guiyang, Chenzhou. The experiment was the two-factor split-plot test, and set C1 (topping at budding), C2 (topping at the opening of the central flower), C3 (topping at the opening of the full flower) and D1 (removing the flower without young leaves), D2 (removing the top adjacent 2 young leaves on the flower), D3 (removing the top 4 adjacent young leaves on the flower). The effects of different treatments on the economic traits, physical characteristics, chemical composition and sensory quality of flue-cured tobacco ‘Yunyan 87’ were analyzed. The results showed that with the delay of topping time, the proportion of superior tobacco, average price, yield, output value and smoking quality of flue-cured tobacco increased first and then decreased. The length, thickness and leaf area quality of upper leaves increased, and the contents of total nitrogen and nicotine increased. With the increase of young leaves removed by topping, the proportion of superior leaves increased first and then decreased, while the output value decreased first and then increased, and the length, thickness and leaf area quality of upper, middle and lower leaves increased, the leaf area index of middle leaves increased, and the contents of nicotine, total sugar and reducing sugar increased. Under the interaction of topping time and topping method, the economic traits of the treatment of topping without removing young leaves when the central flower was open were the best, the physical characteristics of the treatment of removing the top adjacent 4 young leaves on the flower when the bud was open were the best, and the sensory quality of the treatment of removing the top adjacent 2 young leaves on the flower when the central flower was open was the best. Therefore, it is more than suitable for ‘Yunyan 87’ to remove the top adjacent 2 young leaves on the flower when the central flower is open.

Key words: flue-cured tobacco, topping time, topping method, economic traits, quality of tobacco leaves

WU Wenxin, LI Sijun, TAN Zhipeng, ZONG Yi, HE Mingyu, PAN Feilong, BI Yiming, JIANG Zhimin, CHEN Tao, XIA Bing, CHENG Mingzhu, DENG Xiaohua. Effects of Topping Time and Method on Economic Traits and Quality of Flue-cured Tobacco[J]. Journal of Agriculture, 2024, 14(8): 9-15.

Figures/Tables 4

References 20

[1]	刘国顺. 烟草栽培学[M]. 北京: 中国农业出版社, 2017:250-258.
[2]	邓小华, 肖汉乾. 烤烟生产氮肥减施增效理论与模式[M]. 北京: 中国农业科学技术出版社, 2023:258-269.
[3]	赵唯琦, 桑应华, 黄泽坤, 等. 不同打顶时期对烤烟及其上部烟叶产质量的影响[J]. 山东农业科学, 2019, 51(12):20-25.
[4]	张蕴睿, 朱慧芹, 汪文杰, 等. 打顶时间和留叶数对K326产质量的影响[J]. 安徽农业科学, 2019, 47(5):37-40.
[5]	王柱石, 王铮, 范文彪, 等. 打顶时期与有效留叶数对烤烟产量及质量的影响[J]. 贵州农业科学, 2017, 45(1):39-43.
[6]	刘常荣, 孟剑君. 不同打顶时间对烤烟K326烟叶产量和品质的影响[J]. 江苏农业科学, 2006(3):155-156.
[7]	王潇然, 王新中, 金东峰, 等. 打顶时间影响烤烟上部叶品质的分子机制[J]. 分子植物育种, 2023.
[8]	易建华, 贾志红, 孙在军. 打顶时间对烤烟根系形态及烟碱含量的影响[J]. 安徽农业科学, 2006(12):2762,2777.
[9]	林英超, 韦克苏, 高维常, 等. 套袋抑顶对烤烟上部叶成熟及烤后烟叶质量的影响[J]. 南方农业学报, 2017, 48(11):1976-1982.
[10]	班国相, 李朝阳, 冉贤传, 等. 打叶留茎对烤烟顶叶品质及中部化叶比例的影响[J]. 贵州农业科学, 2016, 44(12):47-49.
[11]	胡亚杰, 韦建玉, 程传策, 等. 不同打顶留杈方法对早花烟株产量及质量性状的影响[J]. 广东农业科学, 2012, 39(5):35-37,42.
[12]	王育军, 周冀衡, 张一扬, 等. 不同打叶时间对烤烟产质量和化学成分的影响[J]. 云南农业大学学报(自然科学), 2014, 29(1):78-83.
[13]	郭东海, 朱列书, 宋正熊, 等. 不同打顶方式对烤烟上部叶化学成分的影响[J]. 江西农业学报, 2014, 26(4):83-85.
[14]	陈宜军, 齐绍武, 夏凯, 等. 不同时间二次打顶对烤烟上部叶生物量和钾含量的影响[J]. 作物研究, 2007(S1):746-747.
[15]	邓小华, 陈冬林, 周冀衡, 等. 湖南烤烟物理性状比较及聚类评价[J]. 中国烟草科学, 2009, 30(3):63-68,72.
[16]	张文军, 郭松, 杨柳, 等. 上部烟叶一次性采收成熟度对烟叶物理特性的影响[J]. 农学学报, 2023, 13(6):80-85. doi: 10.11923/j.issn.2095-4050.cjas2022-0075
[17]	邓小华, 朱林, 李思军, 等. 稻茬烤烟中部6片烟叶一次性采收的成熟度综合评价[J]. 核农学报, 2023, 37(4):854-864. doi: 10.11869/j.issn.1000-8551.2023.04.0854
[18]	兰金隆, 蓝周焕, 赖荣泉, 等. 不同打顶时期和驳枝方法对烤烟品种‘K326’上部叶可用性影响[J]. 中国农学通报, 2012, 28(22):265-271.
[19]	韩玉环, 刘晨, 杨龙, 于涛. 打顶时期和留叶数对山东烤烟上部叶生长发育的影响[J]. 作物杂志, 2023(2):157-162.
[20]	唐兴贵, 赵羡波, 班国相, 等. 顶端调控技术对烤烟K326品质和部位结构比例的影响[J]. 河南农业科学, 2017, 46(8):46-51.

处理	上等烟比例/%	均价/(元/kg)	产量/(kg/hm²)	产值/(元/hm²)
C1	61.41±3.04a	27.99±1.68a	1801.36±32.25b	50563.07±101.40b
C2	64.54±3.78a	28.84±0.97a	2081.75±20.53a	60110.75±198.93a
C3	48.58±4.91b	27.55±0.60a	2052.32±38.54a	56532.59±132.57a
D1	57.45±5.16b	28.16±1.33a	1981.36±26.88a	56023.34±147.76a
D2	59.99±4.17a	27.33±0.77a	1991.40±19.84a	54497.61±168.23b
D3	57.08±1.58b	28.89±1.02a	1962.67±28.53a	56685.45±258.76a
C1D1	52.53±2.09b	27.18±0.93a	1698.90±12.76d	46188.18±88.59e
C1D2	57.93±2.21b	26.72±0.85a	1761.21±6.45c	47057.67±129.42d
C1D3	73.77±1.76a	30.06±0.77a	1943.98±14.11bc	58443.34±149.68b
C2D1	68.03±0.98ab	29.95±0.48a	2229.55±7.71a	66772.02±108.77a
C2D2	71.03±1.83a	28.19±1.07a	2120.51±13.38a	59772.87±203.33ab
C2D3	54.55±2.03b	28.38±0.61a	1895.17±9.97c	53787.35±188.47c
C3D1	51.80±3.12b	27.34±0.82a	2015.63±15.71ab	55109.81±158.63b
C3D2	51.02±2.56b	27.08±0.88a	2092.48±14.11ab	56662.30±149.68b
C3D3	42.93±2.98c	28.22±0.85a	2048.86±11.71ab	57825.67±108.77b

处理	上等烟比例/%	均价/(元/kg)	产量/(kg/hm²)	产值/(元/hm²)
C1	61.41±3.04a	27.99±1.68a	1801.36±32.25b	50563.07±101.40b
C2	64.54±3.78a	28.84±0.97a	2081.75±20.53a	60110.75±198.93a
C3	48.58±4.91b	27.55±0.60a	2052.32±38.54a	56532.59±132.57a
D1	57.45±5.16b	28.16±1.33a	1981.36±26.88a	56023.34±147.76a
D2	59.99±4.17a	27.33±0.77a	1991.40±19.84a	54497.61±168.23b
D3	57.08±1.58b	28.89±1.02a	1962.67±28.53a	56685.45±258.76a
C1D1	52.53±2.09b	27.18±0.93a	1698.90±12.76d	46188.18±88.59e
C1D2	57.93±2.21b	26.72±0.85a	1761.21±6.45c	47057.67±129.42d
C1D3	73.77±1.76a	30.06±0.77a	1943.98±14.11bc	58443.34±149.68b
C2D1	68.03±0.98ab	29.95±0.48a	2229.55±7.71a	66772.02±108.77a
C2D2	71.03±1.83a	28.19±1.07a	2120.51±13.38a	59772.87±203.33ab
C2D3	54.55±2.03b	28.38±0.61a	1895.17±9.97c	53787.35±188.47c
C3D1	51.80±3.12b	27.34±0.82a	2015.63±15.71ab	55109.81±158.63b
C3D2	51.02±2.56b	27.08±0.88a	2092.48±14.11ab	56662.30±149.68b
C3D3	42.93±2.98c	28.22±0.85a	2048.86±11.71ab	57825.67±108.77b

部位					单叶质量/g	含梗率/%	叶片厚度/μm	平衡含水率/%	叶面积质量/(g/m²)
上部烟叶	C1	62.31±5.92b	17.23±2.78a		11.09±1.79a	26.59±1.36a	231.41±2.91ab	15.17±0.67a	180.36±2.25b
	C2	61.09±3.59b	16.56±2.75a		10.99±1.80a	25.38±2.31a	224.06±1.52b	15.48±1.47a	195.54±1.64a
	C3	65.12±4.21a	16.54±1.78a		10.48±1.89a	26.73±2.74a	238.36±1.89a	15.90±1.14a	187.13±3.19ab
	D1	60.68±4.64b	16.02±2.06a		10.45±1.23a	26.32±1.77a	222.66±1.86b	15.55±1.36a	181.72±6.80b
	D2	62.32±4.58b	17.10±3.68a		11.04±2.47a	26.59±3.30a	228.48±8.69b	15.95±1.10a	193.79±2.64a
	D3	65.52±4.00a	17.21±1.18a		11.08±1.18a	25.80±1.33a	242.69±1.03a	15.04±0.76a	187.52±1.56ab
	C1D1	58.10±3.37b	15.87±2.32a		9.45±0.85b	26.88±2.34a	212.53±1.54b	14.73±0.42a	166.32±4.42b
	C1D2	60.67±4.16b	18.25±4.55a		11.63±1.31ab	26.39±0.93a	228.23±2.75ab	15.69±0.56a	191.57±6.77ab
	C1D3	68.17±2.42a	17.57±0.55a		12.19±0.69a	26.49±0.89a	253.47±3.59a	15.07±0.79a	183.19±6.19b
	C2D1	59.10±1.48b	15.63±2.64a		10.72±0.29ab	25.73±2.37a	215.73±0.15ab	16.58±0.58a	185.45±6.88b
	C2D2	61.90±5.49b	16.73±4.04a		11.25±1.29ab	26.17±3.52a	222.30±1.42ab	15.49±0.28a	205.16±8.44a
	C2D3	62.27±3.21b	17.30±1.31a		11.00±1.35ab	24.25±0.57a	234.13±1.16ab	14.36±0.48a	196.00±1.48ab
	C3D1	64.83±3.11ab	16.57±1.33a		11.18±1.08ab	26.33±0.61a	239.70±1.00ab	15.34±0.45a	193.4±05.65ab
	C3D2	64.40±2.39ab	16.30±1.82a	10.22±1.61ab		27.19±4.68a	234.90±6.90ab	16.67±0.26a	184.62±5.19b
	C3D3	66.13±3.64ab	16.77±1.39a	10.04±1.44b		26.67±0.70a	240.47±1.45ab	15.68±0.42a	183.37±3.54b
中部烟叶	C1	65.73±4.12a	23.83±5.32a		11.13±2.03a	26.89±2.14a	166.61±4.72ab	17.68±0.96a	124.35±8.86ab
	C2	64.42±2.72a	23.20±2.54a		11.69±1.77a	25.82±2.10a	179.88±4.50a	16.81±1.44a	131.53±2.54a
	C3	69.62±4.53a	25.40±3.13a		12.55±1.98a	25.89±3.27a	154.50±2.79b	18.65±0.84a	115.92±7.74b
	D1	64.17±2.54a	22.42±3.18a		10.91±1.83a	26.27±9.10a	164.22±2.24a	17.48±1.31a	119.04±7.37b
	D2	66.68±5.42a	23.32±4.24a		11.59±1.50a	26.23±2.66a	169.16±1.61a	18.48±1.00a	120.58±7.53b
	D3	68.93±4.03a	26.69±2.88a		12.88±1.64a	26.10±9.23a	167.61±2.43a	17.17±1.36a	132.17±9.50a
	C1D1	63.83±2.73a	20.40±3.72b		10.06±0.97a	27.54±1.98a	134.00±0.66d	18.79±0.42a	110.37±7.54b
	C1D2	64.07±5.05a	21.97±5.48b		10.44±2.55a	26.11±1.11a	180.07±1.33ab	17.33±0.46a	117.72±5.56b
	C1D3	69.30±2.54a	29.13±2.08a		12.89±1.37a	27.03±1.77a	185.77±5.03a	16.92±0.64a	144.97±5.96a
	C2D1	61.93±2.69a	22.70±3.22b		10.43±0.94a	26.32±2.46a	177.57±2.27b	15.92±0.42a	125.20±3.91ab
	C2D2	65.10±1.99a	23.17±0.32ab		11.36±0.69a	26.19±2.06a	180.50±1.29ab	18.68±0.44a	131.86±2.31ab
	C2D3	66.23±1.91a	23.73±2.31ab		13.29±1.67a	24.95±2.39a	181.57±4.74ab	15.82±0.17a	137.52±6.15ab
	C3D1	66.73±2.40a	24.17±2.35ab		12.23±1.61a	24.95±2.49a	181.10±0.36ab	17.73±0.47a	121.55±6.00ab
	C3D2	70.87±4.65a	24.83±5.01ab		12.98±1.35a	26.41±2.16a	146.90±5.73c	19.44±0.42a	112.17±5.76b
	C3D3	71.27±5.97a	27.20±1.01ab		12.45±1.82a	26.32±1.60a	135.50±2.50d	18.78±0.47a	114.04±4.66b
下部烟叶	C1	61.26±4.42a	22.33±1.68a		9.63±2.09a	28.60±4.76a	102.78±1.68c	17.31±1.61a	86.49±8.66b
	C2	58.91±4.29a	21.12±2.45a		7.49±1.44a	29.52±2.23a	132.59±3.82a	16.04±1.31a	103.68±6.98a
	C3	60.40±5.43a	22.04±2.80a		7.70±1.74a	29.00±3.31a	116.79±6.52b	16.89±0.50a	93.01±7.72ab
	D1	60.80±5.01a	22.11±2.31a		8.43±1.77a	28.97±3.06a	116.78±8.56b	16.52±1.01a	92.54±5.89b
	D2	60.01±5.17a	22.61±2.43a		8.15±2.09a	29.17±4.53a	110.91±3.40b	16.75±1.67a	93.86±5.18b
	D3	59.76±4.55a	20.78±2.27a		8.23±1.73a	28.97±3.68a	124.47±4.83a	16.95±0.49a	96.79±3.91a
	C1D1	62.83±2.08a	22.53±0.81a		9.21±0.88a	29.21±3.57a	97.37±1.56c	17.50±0.46a	82.65±6.08c
	C1D2	61.53±0.23a	22.67±2.22a		9.71±1.67a	27.09±4.36a	94.87±2.65c	17.36±0.64a	85.29±7.16bc
	C1D3	59.40±2.25a	21.80±2.26a		9.95±1.21a	29.50±5.22a	116.10±6.51b	17.06±0.26a	91.54±3.69b
	C2D1	58.80±3.35a	19.40±0.82a		7.79±1.17a	29.57±2.90a	137.77±9.37a	15.40±0.58a	103.59±9.49ab
	C2D2	59.00±6.30a	23.60±1.76a		7.25±0.57a	30.62±1.50a	121.77±3.20ab	16.22±0.55a	101.17±6.94ab
	C2D3	58.93±2.35a	20.37±2.40a		7.42±2.05a	28.37±1.09a	138.23±2.05a	16.50±0.40a	106.29±3.88a
	C3D1	60.77±2.92a	24.40±0.95a		8.29±1.03a	28.13±4.01a	115.20±7.62b	16.67±0.39a	91.37±3.93b
	C3D2	59.50±4.06a	21.57±1.48a		7.49±0.89a	29.80±4.00a	116.10±9.87b	16.68±0.47a	95.14±5.87b
	C3D3	60.93±6.23a	20.17±2.72a		7.31±2.06a	29.05±1.26a	119.07±1.56ab	17.31±0.47a	92.53±3.70b

部位					单叶质量/g	含梗率/%	叶片厚度/μm	平衡含水率/%	叶面积质量/(g/m²)
上部烟叶	C1	62.31±5.92b	17.23±2.78a		11.09±1.79a	26.59±1.36a	231.41±2.91ab	15.17±0.67a	180.36±2.25b
	C2	61.09±3.59b	16.56±2.75a		10.99±1.80a	25.38±2.31a	224.06±1.52b	15.48±1.47a	195.54±1.64a
	C3	65.12±4.21a	16.54±1.78a		10.48±1.89a	26.73±2.74a	238.36±1.89a	15.90±1.14a	187.13±3.19ab
	D1	60.68±4.64b	16.02±2.06a		10.45±1.23a	26.32±1.77a	222.66±1.86b	15.55±1.36a	181.72±6.80b
	D2	62.32±4.58b	17.10±3.68a		11.04±2.47a	26.59±3.30a	228.48±8.69b	15.95±1.10a	193.79±2.64a
	D3	65.52±4.00a	17.21±1.18a		11.08±1.18a	25.80±1.33a	242.69±1.03a	15.04±0.76a	187.52±1.56ab
	C1D1	58.10±3.37b	15.87±2.32a		9.45±0.85b	26.88±2.34a	212.53±1.54b	14.73±0.42a	166.32±4.42b
	C1D2	60.67±4.16b	18.25±4.55a		11.63±1.31ab	26.39±0.93a	228.23±2.75ab	15.69±0.56a	191.57±6.77ab
	C1D3	68.17±2.42a	17.57±0.55a		12.19±0.69a	26.49±0.89a	253.47±3.59a	15.07±0.79a	183.19±6.19b
	C2D1	59.10±1.48b	15.63±2.64a		10.72±0.29ab	25.73±2.37a	215.73±0.15ab	16.58±0.58a	185.45±6.88b
	C2D2	61.90±5.49b	16.73±4.04a		11.25±1.29ab	26.17±3.52a	222.30±1.42ab	15.49±0.28a	205.16±8.44a
	C2D3	62.27±3.21b	17.30±1.31a		11.00±1.35ab	24.25±0.57a	234.13±1.16ab	14.36±0.48a	196.00±1.48ab
	C3D1	64.83±3.11ab	16.57±1.33a		11.18±1.08ab	26.33±0.61a	239.70±1.00ab	15.34±0.45a	193.4±05.65ab
	C3D2	64.40±2.39ab	16.30±1.82a	10.22±1.61ab		27.19±4.68a	234.90±6.90ab	16.67±0.26a	184.62±5.19b
	C3D3	66.13±3.64ab	16.77±1.39a	10.04±1.44b		26.67±0.70a	240.47±1.45ab	15.68±0.42a	183.37±3.54b
中部烟叶	C1	65.73±4.12a	23.83±5.32a		11.13±2.03a	26.89±2.14a	166.61±4.72ab	17.68±0.96a	124.35±8.86ab
	C2	64.42±2.72a	23.20±2.54a		11.69±1.77a	25.82±2.10a	179.88±4.50a	16.81±1.44a	131.53±2.54a
	C3	69.62±4.53a	25.40±3.13a		12.55±1.98a	25.89±3.27a	154.50±2.79b	18.65±0.84a	115.92±7.74b
	D1	64.17±2.54a	22.42±3.18a		10.91±1.83a	26.27±9.10a	164.22±2.24a	17.48±1.31a	119.04±7.37b
	D2	66.68±5.42a	23.32±4.24a		11.59±1.50a	26.23±2.66a	169.16±1.61a	18.48±1.00a	120.58±7.53b
	D3	68.93±4.03a	26.69±2.88a		12.88±1.64a	26.10±9.23a	167.61±2.43a	17.17±1.36a	132.17±9.50a
	C1D1	63.83±2.73a	20.40±3.72b		10.06±0.97a	27.54±1.98a	134.00±0.66d	18.79±0.42a	110.37±7.54b
	C1D2	64.07±5.05a	21.97±5.48b		10.44±2.55a	26.11±1.11a	180.07±1.33ab	17.33±0.46a	117.72±5.56b
	C1D3	69.30±2.54a	29.13±2.08a		12.89±1.37a	27.03±1.77a	185.77±5.03a	16.92±0.64a	144.97±5.96a
	C2D1	61.93±2.69a	22.70±3.22b		10.43±0.94a	26.32±2.46a	177.57±2.27b	15.92±0.42a	125.20±3.91ab
	C2D2	65.10±1.99a	23.17±0.32ab		11.36±0.69a	26.19±2.06a	180.50±1.29ab	18.68±0.44a	131.86±2.31ab
	C2D3	66.23±1.91a	23.73±2.31ab		13.29±1.67a	24.95±2.39a	181.57±4.74ab	15.82±0.17a	137.52±6.15ab
	C3D1	66.73±2.40a	24.17±2.35ab		12.23±1.61a	24.95±2.49a	181.10±0.36ab	17.73±0.47a	121.55±6.00ab
	C3D2	70.87±4.65a	24.83±5.01ab		12.98±1.35a	26.41±2.16a	146.90±5.73c	19.44±0.42a	112.17±5.76b
	C3D3	71.27±5.97a	27.20±1.01ab		12.45±1.82a	26.32±1.60a	135.50±2.50d	18.78±0.47a	114.04±4.66b
下部烟叶	C1	61.26±4.42a	22.33±1.68a		9.63±2.09a	28.60±4.76a	102.78±1.68c	17.31±1.61a	86.49±8.66b
	C2	58.91±4.29a	21.12±2.45a		7.49±1.44a	29.52±2.23a	132.59±3.82a	16.04±1.31a	103.68±6.98a
	C3	60.40±5.43a	22.04±2.80a		7.70±1.74a	29.00±3.31a	116.79±6.52b	16.89±0.50a	93.01±7.72ab
	D1	60.80±5.01a	22.11±2.31a		8.43±1.77a	28.97±3.06a	116.78±8.56b	16.52±1.01a	92.54±5.89b
	D2	60.01±5.17a	22.61±2.43a		8.15±2.09a	29.17±4.53a	110.91±3.40b	16.75±1.67a	93.86±5.18b
	D3	59.76±4.55a	20.78±2.27a		8.23±1.73a	28.97±3.68a	124.47±4.83a	16.95±0.49a	96.79±3.91a
	C1D1	62.83±2.08a	22.53±0.81a		9.21±0.88a	29.21±3.57a	97.37±1.56c	17.50±0.46a	82.65±6.08c
	C1D2	61.53±0.23a	22.67±2.22a		9.71±1.67a	27.09±4.36a	94.87±2.65c	17.36±0.64a	85.29±7.16bc
	C1D3	59.40±2.25a	21.80±2.26a		9.95±1.21a	29.50±5.22a	116.10±6.51b	17.06±0.26a	91.54±3.69b
	C2D1	58.80±3.35a	19.40±0.82a		7.79±1.17a	29.57±2.90a	137.77±9.37a	15.40±0.58a	103.59±9.49ab
	C2D2	59.00±6.30a	23.60±1.76a		7.25±0.57a	30.62±1.50a	121.77±3.20ab	16.22±0.55a	101.17±6.94ab
	C2D3	58.93±2.35a	20.37±2.40a		7.42±2.05a	28.37±1.09a	138.23±2.05a	16.50±0.40a	106.29±3.88a
	C3D1	60.77±2.92a	24.40±0.95a		8.29±1.03a	28.13±4.01a	115.20±7.62b	16.67±0.39a	91.37±3.93b
	C3D2	59.50±4.06a	21.57±1.48a		7.49±0.89a	29.80±4.00a	116.10±9.87b	16.68±0.47a	95.14±5.87b
	C3D3	60.93±6.23a	20.17±2.72a		7.31±2.06a	29.05±1.26a	119.07±1.56ab	17.31±0.47a	92.53±3.70b

部位	处理	总糖	还原糖	烟碱	总氮	钾	氯
上部烟叶	C1	26.15±0.66a	22.05±1.10a	2.74±0.31ab	1.87±0.18a	1.66±0.24a	0.42±0.07a
	C2	26.58±0.41a	22.33±0.90a	2.58±0.15b	1.79±0.10a	1.43±0.20a	0.35±0.04a
	C3	25.30±0.78a	20.51±1.31a	2.88±0.22a	1.91±0.15a	1.62±0.24a	0.41±0.08a
	D1	26.27±0.37a	22.13±0.98a	2.64±0.13b	1.83±0.09a	1.52±0.26a	0.38±0.03a
	D2	26.07±1.16a	21.57±1.70a	2.67±0.33b	1.86±0.18a	1.65±0.25a	0.37±0.06a
	D3	25.69±0.73a	21.18±1.28a	2.88±0.23a	1.89±0.17a	1.53±0.21a	0.43±0.09a
	C1D1	26.24±0.52a	21.90±1.36a	2.68±0.14b	1.85±0.12ab	1.85±0.08a	0.35±0.02a
	C1D2	26.74±0.48a	22.78±1.05a	2.74±0.20ab	1.74±0.14b	1.36±0.06b	0.44±0.04a
	C1D3	25.47±0.17a	21.47±1.15a	3.09±0.09a	2.04±0.17a	1.76±0.01ab	0.46±0.08a
	C2D1	26.38±0.49a	22.74±0.97a	2.56±0.17b	1.81±0.13ab	1.32±0.01b	0.39±0.03a
	C2D2	26.80±0.49a	22.17±1.08a	2.58±0.15b	1.80±0.13ab	1.68±0.05ab	0.33±0.02a
	C2D3	26.55±0.41a	22.08±1.21a	2.66±0.19b	1.78±0.12b	1.30±0.08b	0.34±0.03a
	C3D1	26.19±0.37a	21.76±0.96a	2.67±0.16b	1.84±0.11ab	1.40±0.01b	0.41±0.04a
	C3D2	24.67±0.61a	19.77±1.44a	3.07±0.15a	2.05±0.11a	1.91±0.05a	0.35±0.06a
	C3D3	25.04±0.19a	19.98±0.91a	3.01±0.18a	1.85±0.16ab	1.54±0.10ab	0.48±0.11a
中部烟叶	C1	31.85±0.90a	25.83±0.79a	1.73±0.15a	1.49±0.13b	2.16±0.10a	0.39±0.10a
	C2	31.23±1.32a	24.69±1.69a	1.75±0.26a	1.51±0.07ab	1.93±0.19a	0.36±0.05a
	C3	30.96±1.62a	24.76±2.19a	1.78±0.21a	1.61±0.14a	2.19±0.17a	0.39±0.07a
	D1	32.13±1.03a	26.32±1.13a	1.60±0.22b	1.54±0.11a	2.11±0.10a	0.33±0.02a
	D2	30.82±1.56a	24.67±1.84a	1.83±0.09ab	1.54±0.15a	2.13±0.25a	0.38±0.07a
	D3	31.09±1.03a	24.30±1.36a	1.93±0.21a	1.53±0.12a	2.04±0.20a	0.43±0.09a
	C1D1	30.82±0.14a	25.44±0.98a	1.88±0.01b	1.72±0.12a	2.20±0.01a	0.34±0.01a
	C1D2	31.56±0.48a	26.46±0.85a	1.95±0.04b	1.62±0.09b	2.23±0.08a	0.35±0.05a
	C1D3	32.18±0.67a	25.61±0.49a	2.06±0.05ab	1.63±0.05b	2.07±0.14ab	0.48±0.16a
	C2D1	30.84±0.22a	26.23±1.14a	1.75±0.04b	1.75±0.05a	2.14±0.03ab	0.33±0.01a
	C2D2	30.76±0.34a	24.79±1.29a	1.82±0.08b	1.71±0.10a	1.82±0.09b	0.36±0.08a
	C2D3	30.10±0.62a	23.06±1.14a	2.00±0.06ab	1.73±0.10a	1.83±0.19b	0.39±0.04a
	C3D1	32.73±0.25a	27.28±0.85a	1.87±0.06b	1.75±0.13a	1.99±0.02ab	0.33±0.04a
	C3D2	29.13±0.20a	22.77±0.97a	1.93±0.01ab	1.77±0.12a	2.35±0.02a	0.43±0.08a
	C3D3	31.00±0.29a	24.23±1.08a	2.14±0.01a	1.76±0.14a	2.22±0.03a	0.43±0.04a
下部烟叶	C1	32.40±0.98a	24.12±1.80a	1.27±0.11a	1.49±0.08b	2.42±0.23a	0.37±0.05a
	C2	28.92±0.73b	21.37±1.33b	1.29±0.11a	1.58±0.07ab	2.84±0.15a	0.38±0.07a
	C3	27.09±4.35b	17.95±3.83b	1.45±0.12a	1.70±0.19a	2.87±0.27a	0.41±0.15a
	D1	31.10±1.49a	23.09±1.46a	1.29±0.11a	1.52±0.06a	2.60±0.29a	0.35±0.05a
	D2	28.53±5.05b	20.13±5.44b	1.31±0.15a	1.63±0.23a	2.84±0.41a	0.44±0.15a
	D3	28.78±2.32b	20.22±2.03b	1.40±0.14a	1.61±0.12a	2.69±0.09a	0.37±0.05a
	C1D1	31.93±0.40a	24.44±1.02a	1.39±0.06a	1.57±0.06b	2.24±0.01c	0.42±0.02a
	C1D2	31.62±0.23a	25.68±0.92a	1.37±0.01a	1.40±0.03c	2.34±0.03c	0.33±0.04a
	C1D3	31.65±0.28a	22.25±1.51ab	1.45±0.05a	1.49±0.02b	2.69±0.17b	0.37±0.06a
	C2D1	29.20±0.35ab	22.92±0.28ab	1.18±0.11a	1.51±0.02b	2.82±0.10ab	0.32±0.02a
	C2D2	29.11±0.32ab	20.97±0.63ab	1.28±0.04a	1.60±0.03ab	2.99±0.14ab	0.44±0.09a
	C2D3	28.05±0.27ab	20.23±0.81ab	1.40±0.01a	1.63±0.09ab	2.71±0.06ab	0.39±0.03a
	C3D1	32.17±0.07a	21.92±1.77ab	1.30±0.04a	1.49±0.07b	2.73±0.13ab	0.33±0.02a
	C3D2	28.47±0.04ab	16.74±1.44c	1.48±0.06a	1.69±0.05ab	3.19±0.12a	0.55±0.22a
	C3D3	26.63±0.05b	18.18±1.02b	1.56±0.04a	1.72±0.09a	2.68±0.09b	0.36±0.08a