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Alternative Ridging Practices for Flue-Cured Tobacco Production in North Carolina
| Content Provider | Semantic Scholar |
|---|---|
| Author | Vann, Matthew C. Fisher, Loren R. Wells, Randy Jordan, David L. Heitman, Joshua L. |
| Copyright Year | 2017 |
| Abstract | With increasing farm size and the necessity for timely field preparation, flue-cured tobacco (Nicotiana tabacum L.) producers in North Carolina would benefit from alternatives to current ridging practices. Research was conducted in 2012 and 2013 to evaluate the effects of differing ridging methods on soil physical properties and the growth and development of flue-cured tobacco. In each environment, two alternative ridging methods were compared with the grower standard of spring ridging (SR): fall ridging (FR) and rotary ridging (RR) in the Piedmont, and FR and no ridging (NR) in the Coastal Plain. In the Piedmont, FR reduced leaf yield and value when compared with RR and SR systems. Reduced yield and value were a result of high soil resistance that inhibited plant growth. In the Coastal Plain, treatments imposed did not affect the soil physical properties or tobacco yield and quality. Results indicate that FR and NR systems are acceptable alternative ridging methods for the production of flue-cured tobacco in the sandy Coastal Plain growing region. Alternatively, FR should not be used in the Piedmont growing region due to the fine soil texture that is prone to high resistance. F lue-cured tobacco is most commonly produced in a conventionally tilled and ridged (bedded) system that includes multiple posttransplanting cultivations. Yield increases have been documented in flue-cured tobacco when ridging is compared with flat cultivation in seasons characterized by high rainfall (Peedin, 1999). Collins and Hawks (2013b) have suggested that a high, wide row ridge promotes water drainage away from sensitive tobacco roots, reduces fertilizer losses, and increases soil temperature—all of which are beneficial to tobacco growth. Ridging is commonly performed 1 to 4 weeks in advance of transplanting, once environmental conditions become favorable, and is often completed with the aid of in-row subsoil tillage. Vepraskas and Miner (1986) reported increased root growth and decreased mechanical impedance when subsoiling takes place prior to transplanting. Subsoiling practices can reduce soil resistance from >25 bars to as low as 12 bars, thus allowing for deeper tobacco root penetration below the Ap soil horizon (Vepraskas and Miner, 1986). Due to the correlation of soil resistance and soil bulk density (BD), root growth and biomass accumulation of potted and field-grown tobacco plants are increased when BD and soil resistance are decreased below 1.66 Published in Crop Forage Turfgrass Manage. Volume 3. doi:10.2134/cftm2017.02.0016 © 2017 American Society of Agronomy and Crop Science Society of America 5585 Guilford Rd., Madison, WI 53711 This is an open access article distributed under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/). Published online June 15, 2017 |
| File Format | PDF HTM / HTML |
| DOI | 10.2134/cftm2017.02.0016 |
| Alternate Webpage(s) | https://dl.sciencesocieties.org/publications/cftm/pdfs/3/1/cftm2017.02.0016 |
| Alternate Webpage(s) | https://repository.lib.ncsu.edu/bitstream/handle/1840.20/34640/cftm-3-1-cftm2017.02.0016.pdf?isAllowed=y&sequence=1 |
| Alternate Webpage(s) | https://doi.org/10.2134/cftm2017.02.0016 |
| Volume Number | 3 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
