Yield and Quality Response of Burley Tobacco to Nitrogen and Potassium1
- Dale Colyer and
- G. Gordon Pohlman2
Experiments by the Ohio Valley Experiment Station at Point Pleasant, West Virginia were conducted over an eight-year period to test for response to nitrogen and potassium fertilizer by hurley tobacco (Nicotiana tabacum L.). Both yield and quality were affected by the level of fertilizer use, with the effects due to nitrogen more pronounced. Quality as measured by price is maximized with an average rate of 184 kg N/ha, a lower application rate than the 271 kg/ha required to maximize yield. The opposite prevailed for potassium fertilization with quality maximized with 330 kg K/ha and yield with 300 kg/ha. Average gross value of tobacco per hectare would be maximized with 242 kg N and 322 kg K, while net returns would be greatest at 237 kg N and 308 kg of K.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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