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2021 Volume 34 Issue 5
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WANG Yao, ZHANG Chen, QI Xiayan, et al. Effects of Agricultural Measures on Growth and Development and Economic Characteristics of Flue-Cured Tobacco in Mid-high Altitude Areas[J]. PLANT HEALTH AND MEDICINE, 2021, (5): 30-36. doi: 10.13718/j.cnki.zwys.2021.05.006
Citation: WANG Yao, ZHANG Chen, QI Xiayan, et al. Effects of Agricultural Measures on Growth and Development and Economic Characteristics of Flue-Cured Tobacco in Mid-high Altitude Areas[J]. PLANT HEALTH AND MEDICINE, 2021, (5): 30-36. doi: 10.13718/j.cnki.zwys.2021.05.006
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Effects of Agricultural Measures on Growth and Development and Economic Characteristics of Flue-Cured Tobacco in Mid-high Altitude Areas

  • 1. School of Plant Protection, Southwest University, Chongqing 400715, China;

  • 2. Tongzi Branch of Zunyi Company of Guizhou Tobacco Company, Tongzi Guizhou 563200, China;

  • 3. Zunyi City Company of Guizhou Tobacco Company, Zunyi Guizhou 563000, China;

  • 4. Jiuba Agriculture Service Center of TongziCounty of Zunyi City, Tongzi Guizhou 563200, China;

  • 5. Zheng'an Branch of Zunyi Company of Guizhou Tobacco Company, Zheng'an Guizhou 563400, China

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  • Received Date: 21/07/2021

  • MSC: S432

  • To identify the suitable agricultural measures for flue-cured tobacco in high-altitude tobacco-growing areas in Guizhou, a field comparative experiment was made, in which the tobacco cultivarYunyan 87 was used as the test material, to study the influences of transplanting date (April 10 vs. April 26), seedling-nursing method (tray seedling vs. float-seedling), top dressing timing (8 days after transplanting vs. 15 days after transplanting), and cutting leaf vs un-cutting leaf on the growth period, root characteristics and agronomic and economic characters of the plants.The results showed that transplanting time was the main factor affecting the growth and development of flue-cured tobacco. The fresh weight of the above-ground part, the fresh weight of the root system, and the largest root length, number of lateral roots and root-to-shoot ratio were significantly increased by 19.31%, 64.71%, 8.56%, 71.05% and 25%, respectively, when the flue-cured tobacco was transplanted at an earlier date (April 10). Plant height, stem circumference, pitch, maximum leaf length, maximum leaf width and average leaf area were increased significantly by 4.44%, 4.81%, 17.47%, 5.13%, 4.84% and 9.12%, and total output, total output value, average price and the proportion of first-class cigarettes significantly increased by 11.95%, 7.57%, 2.99% and 6.97%, respectively. Compared with the flue-cured tobacco plants of top dressing 8 days after transplanting, tray seedlings and leaf cutting treatments, the flue-cured tobacco of top dressing 15 days after transplanting, floating seedlings and uncutting leaves were better in the aspects of root characteristics and agronomic characters. In general, Treatment V (transplanted on April 10, floated seedlings, top-dressing on the 15th day after transplanting, uncut leaves) had the most obvious promotion effect on the growth and development of flue-cured tobacco, and the total yield, total output value, average price and the proportions of top-grade tobacco leaves were the best and, therefore, this combination of agricultural measures is recommended for tobacco cultivation in high-altitude tobacco-growing areas.
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Effects of Agricultural Measures on Growth and Development and Economic Characteristics of Flue-Cured Tobacco in Mid-high Altitude Areas

  • Received Date: 21/07/2021

Abstract: To identify the suitable agricultural measures for flue-cured tobacco in high-altitude tobacco-growing areas in Guizhou, a field comparative experiment was made, in which the tobacco cultivarYunyan 87 was used as the test material, to study the influences of transplanting date (April 10 vs. April 26), seedling-nursing method (tray seedling vs. float-seedling), top dressing timing (8 days after transplanting vs. 15 days after transplanting), and cutting leaf vs un-cutting leaf on the growth period, root characteristics and agronomic and economic characters of the plants.The results showed that transplanting time was the main factor affecting the growth and development of flue-cured tobacco. The fresh weight of the above-ground part, the fresh weight of the root system, and the largest root length, number of lateral roots and root-to-shoot ratio were significantly increased by 19.31%, 64.71%, 8.56%, 71.05% and 25%, respectively, when the flue-cured tobacco was transplanted at an earlier date (April 10). Plant height, stem circumference, pitch, maximum leaf length, maximum leaf width and average leaf area were increased significantly by 4.44%, 4.81%, 17.47%, 5.13%, 4.84% and 9.12%, and total output, total output value, average price and the proportion of first-class cigarettes significantly increased by 11.95%, 7.57%, 2.99% and 6.97%, respectively. Compared with the flue-cured tobacco plants of top dressing 8 days after transplanting, tray seedlings and leaf cutting treatments, the flue-cured tobacco of top dressing 15 days after transplanting, floating seedlings and uncutting leaves were better in the aspects of root characteristics and agronomic characters. In general, Treatment V (transplanted on April 10, floated seedlings, top-dressing on the 15th day after transplanting, uncut leaves) had the most obvious promotion effect on the growth and development of flue-cured tobacco, and the total yield, total output value, average price and the proportions of top-grade tobacco leaves were the best and, therefore, this combination of agricultural measures is recommended for tobacco cultivation in high-altitude tobacco-growing areas.

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