Formulating a Percentage of Slow Release Nitrogen

Q.  How do I formulate for a certain percentage of Slow Release Nitrogen when making a Blend Ticket?

A.  Agvance Blending has the tools built into the formulation process to calculate the desired quantity of Slow Release Nitrogen when formulating a blend.

To begin the process, the percentage of Slow Release Nitrogen needs to be set up on the product. 

Edit the product to be used to fulfill the Slow Release request. On the Blend Setup tab, click the Details button in the Nutrient Contributor Information to open the Chemical Composition window.

On the N tab, enter the percentage of Nitrogen for the product that is Slow Release. This example uses ESN Urea as 100% Slow Release Nitrogen.

In the Blending module, verify the Slow Release Nitrogen product and any other products needed to formulate the desired analysis are in the product set. Navigate to Blending / Setup / Product Sets, and edit the product set that will be used to formulate. In this example, the Basic Dry product set is used with ESN and Urea available to fulfill the Nitrogen requested.

Add a new Blend Ticket utilizing the product set containing the Slow Release Nitrogen product. Enter the desired analysis on the General tab, and double-click the N column heading to open the Set Nutrient Source Constraints window. Enter the percentage of Slow Release Nitrogen to be used in the blend, and set the dropdown to greater than or equal to (as ESN is more expensive than Urea in this example).

This example requests 120 pounds of Nitrogen per acre with at least 75% coming from Slow Release Nitrogen.

When the desired percentage of Slow Release Nitrogen has been entered, select OK on the Set Nutrient Source Constraints window. Select the Formulate button on the General tab of the Blend Ticket.

Verify the desired products have been used to fulfill the request on the Products tab.

This blend requested 120 pounds of Nitrogen with a minimum of 75% being from Slow Release Nitrogen, which calculates to be 90 Lbs of N per acre (120 * .75 = 90). The blend required Urea at 65.217 pounds per acre (30 Lbs of N per acre) and ESN Urea at 204.545 pounds per acre (90 Lbs of N per acre), so the 90 pounds were fulfilled by ESN Urea, and the remaining 30 pounds were fulfilled by Urea.