Abstract: Adequate soil fertility is one of the requirements for profitable sunflower production. Nitrogen (N) is the most yield-limiting nutrient, unless there are high residual NO3 -N levels in the soil. Phosphorus (P) is the next most limiting nutrient. Levels of available potassium (K), sulfur (S), and micronutrients generally are sufficient for sunflower production in Colorado soils.
Need more information about growing sunflower? You can always return to the sunflower fertilizer.
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Fertilizing%20Sunflowers.pdf
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