To determine the amount of Nitrogen to apply: Step 1: Take 160 lbs (desired amount) ÷ 43,560 (square feet in an acre) = 0.0037. Step 2: Multiply the square feet of your row per square feet by 0.0037. Example: A 100′ row that is 3 feet wide is 300 square ft X 0.0037 = 1.11 lbs of Nitrogen needed. Step 4: Divide the amount of Nitrogen needed by the N formulation of the fertilizer you are using. Example 1.11 ÷ .21 (21% ammonium sulfate) = 5.3 lbs. This is the amount of fertilizer that would need to be applied to each 300 sq ft of onion area if there was no N in the soil analysis. Fertilizer packages are labeled with three numbers that are percentages. The first indicates the percent actual nitrogen (N), the second, the oxide form of phosphorus (P2O5), and the third, the oxide form of potassium (K2O). Ammonium Sulfate is labeled as a 21-0-0 fertilizer so to get 1 lb of Nitrogen in any space you will need to apply 5 lbs of dry product since 5 lbs X 21% = 1.05 units of Nitrogen.
Free Shipping on all orders! Exclusions apply to AK and HI orders over ten bunches; add $2.00 per bunch over ten bunches or $40 per case for shipping/handling.
PRICING EXAMPLE: 1 bunch Copra + 1 bunch Sterling = 2 bunches for a total of $21.90. After 30 bunches, the pricing starts over. A 45 bunch order will be priced as a 30 bunch order plus a 15 bunch order ($105.00 + $75.00 = $180.00). *Alaska and Hawaii orders over 10 bunches, add $2.00 per bunch for shipping/handling.
Onion plant case lot discounts apply to single variety cases only (no mixing of varieties in the same box). Cases are field packed with the variety marked on the outside of the box. Multiple cases will be strapped together for shipment. For case lot orders, please include your UPS/FedEx shipping address. No PO Box deliveries, please. *Alaska and Hawaii customers: add $40 per case for additional shipping/handling. If you have any questions about your order, please call us at (830) 876-2430 or email us at email@example.com.