Suitable Nitrogen Application Rate of Three Flue-cured Tobacco Varieties in Xuanwei Tobacco Area

doi:10.11924/j.issn.1000-6850.casb2022-0529

Abstract

Abstract:

In order to explore the appropriate nitrogen application rate of high-quality flue-cured tobacco varieties in Xuanwei tobacco area, ‘Yunyan 97’, ‘Yunyan 301’ and ‘Zhongchuan 208’ were used as test materials and the field trial comparison method was adopted to study the differences of economic traits, physical characteristics, appearance quality, chemical composition and sensory evaluation quality of the three varieties under different nitrogen application rates in 2020. The results showed that ‘Yunyan 97’ had the most harmonious chemical composition when the nitrogen application rate was 82.5 kg/hm², and the appearance quality, physical characteristics and sensory evaluation quality of flue-cured tobacco were the highest when the nitrogen application rate was 97.5 kg/hm². At the same time, the comprehensive quality was the best under both the two nitrogen application rates, and the economic benefit was the highest when the nitrogen application rate was 97.5 kg/hm². ‘Yunyan 301’ had better performance when the nitrogen application rate was 67.5 kg/hm², 97.5 kg/hm² and 112.5 kg/hm². Relatively low nitrogen application rate was beneficial to improving the appearance quality and physical characteristics of ‘Yunyan 301’, while, high nitrogen application rate was conducive to increasing the chemical composition coordination and economic benefits of tobacco leaves. When the nitrogen application rate of ‘Zhongchuan 208’ was 97.5 kg/hm², the field growth performance of the variety was good, the economic benefit was high, and the output value was 72883.5 yuan/hm². The comprehensive quality of tobacco leaves was superior, and the comprehensive score was 0.72. To sum up, in Xuanwei tobacco production area, the optimum nitrogen application rate for ‘Yunyan 97’ and ‘Zhongchuan 208’ is 97.5 kg/hm², and the suitable nitrogen application rate for ‘Yunyan 301’ should be determined by soil conditions of the tobacco plot, which can be from 67.5 to 112.5 kg/hm².

Key words: Xuanwei, variety, nitrogen application rate, quality, suitability

CAO Jiayuan, CAI Xianjie, DENG Tao, WEI Qili, MA Aiguo, WU Shujun, SHEN Yinghuan, LI Xiancai, PAN Yihong, YAN Ding. Suitable Nitrogen Application Rate of Three Flue-cured Tobacco Varieties in Xuanwei Tobacco Area[J]. Chinese Agricultural Science Bulletin, 2023, 39(18): 43-51.

Figures/Tables 9

References 26

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处理	有机肥	复合肥	过磷酸钙	硫酸钾
T1	450	386	180	130
T2	550	471	120	86
T3	650	557	97	44
T4	750	643	0	0

处理	有机肥	复合肥	过磷酸钙	硫酸钾
T1	450	386	180	130
T2	550	471	120	86
T3	650	557	97	44
T4	750	643	0	0

烤烟品种	处理	单叶面积/m²	茎围/cm	株高/cm	有效叶数/片
中川208	T1	0.136±0.030	8.69±0.18	112.67±3.21	20.33±0.58
	T2	0.140±0.020	8.79±0.31	111.67±3.21	20.33±1.15
	T3	0.160±0.008	8.90±0.48	111.67±2.31	20.0±0.00
	T4	0.124±0.004	9.00±0.36	117.67±6.81	21.00±1.00
	P	0.199	0.728	0.32	0.532
云97	T1	0.132±0.009	7.85±0.31	102.33±3.21	17.67±0.58
	T2	0.122±0.022	8.37±0.18	106.67±3.51	18.33±1.15
	T3	0.115±0.027	8.16±0.31	102.33±1.15	19.00±1.00
	T4	0.131±0.029	8.48±1.13	101.67±3.51	17.67±0.58
	P	0.777	0.628	0.235	0.258
云301	T1	0.118±0.011	8.48±0.31	97.33±2.52Bb	19.01±0.009b
	T2	0.095±0.005	8.16±0.31	95.67±1.15Bb	19.67±0.58ab
	T3	0.109±0.022	8.16±0.31	95.33±1.53Bb	20.00±0.01a
	T4	0.117±0.003	8.48±0.00	112.67±1.53Aa	20.33±0.58a
	P	0.178	0.33	0.000	0.021

烤烟品种	处理	单叶面积/m²	茎围/cm	株高/cm	有效叶数/片
中川208	T1	0.136±0.030	8.69±0.18	112.67±3.21	20.33±0.58
	T2	0.140±0.020	8.79±0.31	111.67±3.21	20.33±1.15
	T3	0.160±0.008	8.90±0.48	111.67±2.31	20.0±0.00
	T4	0.124±0.004	9.00±0.36	117.67±6.81	21.00±1.00
	P	0.199	0.728	0.32	0.532
云97	T1	0.132±0.009	7.85±0.31	102.33±3.21	17.67±0.58
	T2	0.122±0.022	8.37±0.18	106.67±3.51	18.33±1.15
	T3	0.115±0.027	8.16±0.31	102.33±1.15	19.00±1.00
	T4	0.131±0.029	8.48±1.13	101.67±3.51	17.67±0.58
	P	0.777	0.628	0.235	0.258
云301	T1	0.118±0.011	8.48±0.31	97.33±2.52Bb	19.01±0.009b
	T2	0.095±0.005	8.16±0.31	95.67±1.15Bb	19.67±0.58ab
	T3	0.109±0.022	8.16±0.31	95.33±1.53Bb	20.00±0.01a
	T4	0.117±0.003	8.48±0.00	112.67±1.53Aa	20.33±0.58a
	P	0.178	0.33	0.000	0.021

品种	部位	处理	厚度/mm	含梗率/%	叶面密度/(g/m²)	抗张力/N	抗张强度/(KN/m）	平衡含水率/%	综合得分
中川208	C3F	T1	0.19	33.92	57.45	1.23	0.08	13.46	0.77
		T2	0.18	35.26	54.47	1.28	0.09	11.78	0.68
		T3	0.18	33.45	62.91	1.30	0.09	12.49	0.75
		T4	0.22	32.50	60.83	1.41	0.09	13.69	0.81
	B2F	T1	0.22	28.87	63.82	1.54	0.10	12.83	0.82
		T2	0.20	27.48	67.33	1.40	0.09	13.02	0.85
		T3	0.21	29.30	69.41	0.93	0.06	12.70	0.79
		T4	0.16	27.46	64.34	1.01	0.07	13.38	0.84
云烟301	C3F	T1	0.18	30.51	58.75	1.11	0.07	13.58	0.80
		T2	0.22	34.48	48.88	1.25	0.08	12.48	0.69
		T3	0.18	31.07	69.41	1.03	0.07	11.39	0.73
		T4	0.17	32.53	51.35	0.73	0.05	13.29	0.72
	B2F	T1	0.22	28.58	60.31	1.30	0.09	12.68	0.80
		T2	0.18	32.25	69.67	0.70	0.05	12.43	0.74
		T3	0.19	31.14	60.83	1.09	0.07	11.89	0.72
		T4	0.17	31.62	61.35	0.84	0.06	14.29	0.78
云烟97	C3F	T1	0.17	30.60	61.61	1.13	0.08	12.96	0.77
		T2	0.21	31.53	57.97	1.06	0.07	12.65	0.74
		T3	0.21	30.46	67.59	1.46	0.10	13.23	0.83
		T4	0.21	29.87	58.75	0.98	0.07	13.46	0.80
	B2F	T1	0.16	31.13	66.68	1.13	0.08	13.42	0.81
		T2	0.22	29.95	64.60	1.23	0.08	12.88	0.79
		T3	0.20	26.71	67.33	1.82	0.12	14.15	0.92
		T4	0.19	27.66	65.77	1.11	0.07	13.10	0.83