Creating Variable Rate Prescriptions in SMS

Size: px

Start display at page:

Download "Creating Variable Rate Prescriptions in SMS"

Cori Davidson
5 years ago
Views:

Creating Variable Rate Prescriptions in SMS Variable rate prescriptions can be a very helpful tools that allow you to specifically apply a specific amount of an applied product in specific locations

1 Creating Variable Rate Prescriptions in SMS Variable rate prescriptions can be a very helpful tools that allow you to specifically apply a specific amount of an applied product in specific locations on your farm. This can help to increase productivity, maximize applications and, in some cases, save on cost. SMS has two main tools that allow you to create prescription maps, both will result in Rx maps being created but they go about it in different ways. Creating a Variable Rate Prescription Equation Based Analysis* *SMS Advanced required to use Creating a Variable Rate Prescription Creating Rx maps in SMS Basic can be as simple as creating a map, adjusting your legend and using the built in wizard to walk you through the process. This tool is also available in SMS Advanced. Tutorial(s) Useful Tips Make sure that your base map, if it is not already a polygon map, is gridded or contoured Creating Variable Rate Prescriptions in SMS 1

2 If not, you will not be able to proceed through the prescription wizard You can streamline the process by first editing you legend to reflect the areas where you would like to apply different rates Edit the legend by double clicking on it If you would like to make any changes to the Rx after saving it, map the layer, right-click and choose Edit Layer to get back into the Prescription Editor Common Issues When going through the various steps to create your Rx, make sure to choose the correct units SMS will use a set default unit, ksds/ac for example, and if you want to use sds/ac make sure to change it at the Prescription Attribute Type and Units Selection page Avoid changing the Rate Attribute Type on the Prescription Attribute Type and Units Selection page as it could result in your Rx not exporting correctly âback to top Equation Based Analysis Equation based analysis allows the user to build an equation that will determine based on field specific inputs, how much product is required. Equations allow you to utilize multiple inputs, prompts, sub-equations and more to precisely determine how much product you need and where that product is needed. Creating Variable Rate Prescriptions in SMS 2

Tutorial(s) Useful Tips When creating equations, make sure everything is setup correctly as this will help to ensure that the resulting Rx map is also correct Use a descriptive name as it will help

3 Tutorial(s) Useful Tips When creating equations, make sure everything is setup correctly as this will help to ensure that the resulting Rx map is also correct Use a descriptive name as it will help separate each Rx from the other saved analysis functions Choose the correct input datasets in order to ensure that your resulting Rx will be accurate Choose the correct output attribute(s) and units in order to ensure that the Rx can be both exported and loaded into your field display Output attributes are the units that your newly created Rx will use. For example, if you create a planting prescription, you will want to use ksds or sds/ac in order to ensure your planter monitor will be able to import it When adding input datasets, especially if using inputs like soil sampling, make sure to note and set the interpolation settings correctly These settings can be found by clicking the edit button shown below and will be dictated by your specific input dataset Creating Variable Rate Prescriptions in SMS 3

Utilize the Check Equation to Verify button frequently when writing your equation This can help point out syntax issues early preventing headaches later on Utilize the two wizards, Range and Logic,

4 Utilize the Check Equation to Verify button frequently when writing your equation This can help point out syntax issues early preventing headaches later on Utilize the two wizards, Range and Logic, to help learn and stream line this process The wizards can be used together and are editable after being added to the equation You can use the range wizard to create the basic outline then edit the Result Equals To section to further customize your analysis Common Issues Although the Check Equation button can be helpful, it only points out syntax or structural issues Even though your equation's syntax is valid, it may still produce an odd value Make sure to review your equations for incorrect values or functions when troubleshooting If the map generated from the equation is blank or missing areas, it can mean that you have a specific value(s) in your input datasets that are not accounted for To test for this, add a simple entry at the end of your equation that stats Else/Begin/Result = 0/End and run your equation again If 0 rates now show up where nothing was present before, it indicates there are values not accounted for in your equation Back to top Further Resources: SMS Manuals and Quick Reference Guides SMS Discussion Forum Content last reviewed on: 3/9/16 Reviewed by: TJA Creating Variable Rate Prescriptions in SMS 4

5 Article ID: 1651 Last updated: 15 Mar, 2016 Revision: 2 PRODUCT SUPPORT INFO -> SMS Desktop Software -> Creating Variable Rate Prescriptions in SMS Creating Variable Rate Prescriptions in SMS 5

v Importing Rasters SMS 11.2 Tutorial Requirements Raster Module Map Module Mesh Module Time minutes Prerequisites Overview Tutorial

v Importing Rasters SMS 11.2 Tutorial Requirements Raster Module Map Module Mesh Module Time minutes Prerequisites Overview Tutorial v. 11.2 SMS 11.2 Tutorial Objectives This tutorial teaches how to import a Raster, view elevations at individual points, change display options for multiple views of the data, show the 2D profile plots,