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¶ Table 1. Typical Nutrient Contents (In Pounds) Required to Produce One Bale of Lint |
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| Element / Nutrient | Above Ground Plant (leaves, steps & fruit) |
Seed Cotton | Lint |
| Oxygen | 2100 | 700 | 250 |
| Carbon | 1650 | 550 | 190 |
| Hydrogen | 360 | 120 | 35 |
| Nitrogen | 62 | 35 to 40 | 1 |
| Phosphate, as P205 | 22 | 13 to 20 | 0.3 |
| Phosphorus, as P | 10 | 6 to 9 | 0.13 |
| Potash, as K20 | 61 | 15 | 3 |
| Potassium, as K | 52.6 | 12.9 | 2.59 |
| Calcium | 27 to 62 | 1 | 0.2 |
| Magnesium | 11 to 27 | 5 | 0.3 |
| Sulfur | 8 to 16 | 1 to 2 | trace |
| Other Nutrients | less than 3 | trace | trace |
¶ Seasonal Demands for Various Macronutrient and Micronutrients*
¶ Figure 1. Calcium
¶ Figure 2. Copper
¶ Figure 3. Iron
¶ Figure 4. Magnesium
¶ Figure 5. Manganese
¶ Figure 6. Nitrogen
¶ Figure 7. Phosphorus
¶ Figure 8. Potassium
¶ Figure 9. Sulfur
¶ Figure 10. Zinc
The nutrient uptake values presented in this Crop File are based on whole plant samples collected from two Alabama locations during the 1986 and 1987 growing seasons. Samples were collected every two weeks, then separated into the four components. Populations were 64,000 plants per acre. Final yields averaged 1930 ± 300 pounds per acre.
¶ References
* after "Figure 2. Seasonal demands for various macronutrient and micronutrients (Mullins and Burmester, 1991, 1992, 1993a, 1993b)"; in Advancing Cotton Education, National Cotton Council, http://www.cotton.org/tech/ace/soil-fertility.cfm accessed 13Apr2018