Plant ecology, resources and taxonomy

Effect of Row Spacing and Density Configuration on the Economic Characters of Flue-cured Tobacco in…… Southern Guizhou Mountainous Region

  • 蒋光华,龙曾宇,韦兴启,蒋少阳,耿文堂,刘 琳,李章海,朱英华
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  • (1. Guizhou Tobacco Company, Qiannan Prefecture, Qiannan 558000, Guizhou China; 2. College of Agriculture, Anhui Agricultural University, Hefei 230036, Anhui China; 3. University of Science and Technology of China, Hefei 230041, Anhui China)

Received date: 2023-12-01

  Accepted date: 2023-12-20

  Online published: 2024-03-18

Abstract

The research was conducted to determine the effects of row spacing, planting density and their interaction on the economic properties of flue-cured tobacco in southern Guizhou mountainous region. The field trial was conducted by split zone design along with the economic effect index (ECI) method and partial (Eta)2 effect analysis method. The results showed that output value and ECI of R1.1 treatment was higher than that of R1.0 treatment. Weight per leaf and first-class flue-cured tobacco ratio were reduced along with the increase of planting density, and those of D1.5 were significantly higher than D2.1. While the yield and output value of D2.1 were significantly higher than those of D1.5. The ECI was increased firstly and then decreased with the increase of planting density. So that of D1.8 was significantly higher than the other treatments. In the interaction between row spacing and planting density, the weight per leaf of R1.1D1.5 and R1.0D1.5 was significantly higher than that of R1.0D2.1 and R1.1D2.1, and the yield and output value were significantly lower than those of R1.0D2.1 and R1.1D2.1. The ECI of R1.1D1.8 was the highest and significantly higher than that in R1.0D1.5, R1.0D2.1 and R1.1D2.1. The effects of row spacing on the economic properties of flue-cured tobacco were relatively low, but the effects of planting density, interaction between row spacing and planting density on single leaf weight, proportion of superior tobacco, average price, yield, output value and ECI were higher. In conclusion, appropriate row spacing and planting density was conducive to the improvement of economic traits of flue-cured tobacco in southern Guizhou mountainous region. The planting density of 18000 plants·hm–2 combined with 110 cm row spacing was conducive to the realization of high quality and suitable yield of flue-cured tobacco cultivation in southern Guizhou mountainous region tobacco-planting ecological area.

Cite this article

蒋光华,龙曾宇,韦兴启,蒋少阳,耿文堂,刘 琳,李章海,朱英华 . Effect of Row Spacing and Density Configuration on the Economic Characters of Flue-cured Tobacco in…… Southern Guizhou Mountainous Region[J]. Subtropical Plant Science, 2023 , 52(6) : 518 -524 . DOI: 10.3969/j.issn.1009-7791.2023.06.008

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