After selecting the layers it is possible to select a zoning method . The options available to define the zones are: Manual method With the manual zoning method, layers will be normalized (adjusted to a common scale) and then do an additive union. In turn, each layer will be weighted based on the adjustment factor assigned to it. Finally, to those layers that correspond to NDVI and GNDVI, a correction is applied to increase the variability of the NDVI useful area (0.3-1) compared to areas that are not relevant. The zones will be grouped in a first instance by equal intervals that can later be editable according to the user. Automatic method In the automatic method , a clustering algorithm is used that uses machine learning called k-means in which the N pixels are automatically grouped into clusters or groups based on their affinity. Within this option, the variable to edit or adjust are the "clusters" or zones within which the N pixels will be grouped. Login to Auravant "

A histogram is a statistical graph that represents the repetition of values grouped by classes. The histogram in Auravant is a very useful feature to quickly visualize a batch based on the layer that is selected (ndvi, gndvi, yield, input application, altimetry, electrical conductivity, etc). It serves to easily relate values and areas of the lot, segmenting it into pseudo-environments or areas of interest based on data, minimizing intuition. This allows decisions to be made based on 1 specific data such as an image or layer of limitations to productivity such as: depth of roughing, electrical conductivity, etc. For example, for the management of fertilization, especially nitrogenous, it is an excellent tool since it is highly mobile and spatially variable, so updated and granular information is required to later propose a replacement strategy. The lots will be divided into areas that present little internal variability and high differentiation with other regions, highlighting particular characteristics. In turn, it is important to note that after segmenting the field into sectors it is possible to assign inputs and generate a variable application prescription. How to use the "Histogram" tool? 1- Enter the "Analysis" module and create your "Histogram" from 1 specific data such as an image or layer of limitations to productivity. 2- The first thing you have to do is define the number of environments . (In the histogram it is represented on the Y axis, the frequency of values of the mentioned layer, on the X the grouped hectares and on the slider, the minimum and maximum value of each range). 3- Customize your histogram with the available tools: Addition of zones (ranging from 2 to 7 zones/environments) Layer smoother (removes points to create a simpler map) Color ramps (has a color blind scale) Store classification styles (the ranges of values with which the data segmentation is made to create the different environments are saved) 4- Once you have defined the customization of your histogram, press "Save setting". In the following video we will show the step by step to be able to use the histogram: Login to Auravant "

The "Zoning" feature allows you to identify heterogeneous zones within a field using multiple layers of historical information. Having this information and analysis is key to efficient management of crop sowing density , since an incorrect assignment of doses or plants in an environment can cause crop failure or directly affect yield. To generate a zoning, the user can select up to 7 historical layers within which are: NDVI (Standard and HD) (Available on platform) GNDVI (standard and HD) (available on the platform) Performance (optional if the user has them) Find this functionality available from the Full Professional plan: Pricing How to start zoning? 1- Enter the "Zoning" tool that you will find inside the "Analysis" module: 2- Once you have clicked, you can select up to 7 layers , which can include both satellite images and performance maps . In this step, the correct choice of the layers to be used is important, recommending those in which the variability of the batch is manifested (critical period in different years, for example). 3- Selected the layers that represent the setting, and choose the zoning method. By default, the platform will use the manual method of generating a histogram based on the selected layers. In case of using the automatic method , a clustering algorithm will be executed classifying the zones automatically. Manual Method This is the method most used by users of the platform. It consists of normalizing the layers (adjusting to a common scale) and then making an additive union. In turn, each layer will be weighted based on the adjustment factor assigned to it. In this case, the selected layers are weighted, altering their incidence on the final setting. The % to be edited will depend on agronomic factors that may have an indirect impact on the final map, such as NDVI images from campaigns with abnormal water regimes. When selecting "zoning" the platform will generate polygons of each environment in order to be able to work on them in isolation. Positioning the cursor on an environment and clicking with the right button you can reassign environments. Selecting "tools" will activate a set of functions that will allow editing or adjusting the environment/prescription map based on particular requirements. Among them are distinguished: Simplify map: With this tool, you will be able to simplify the polygons by eliminating the points that make them up. In this way, a less "complex" and lighter file is generated to facilitate reading by the variable application controllers. Remove small areas: With this other tool, the platform will remove those smaller areas that do not justify a differentiated treatment and that could also generate complications for the machinery/controller that will load it. Cut: This tool enables cutting along the environments , allowing the generation of new polygons for differentiated treatments. Automatic method This method uses a clustering algorithm that uses machine learning called k-means in which the N pixels are automatically grouped into clusters or groups based on their affinity. Within this option, the variable to edit or adjust are the "clusters" or zones within which the N pixels will be grouped. Once the setting customization process is complete, the layer is vectorized and the map editor proceeds. What can I do once the environments have been generated? Assign inputs and values to the different environments so that a prescription can be created for a variable application of inputs. Once the prescription has been generated, it can be saved in the "My Maps" section under the desired name so that it can be edited and used as many times as necessary. In this way, having identified the different environments in the field, you will be able to apply the inputs correctly in each of them. For example, in environments with higher yield potential, planting density may vary in relation to environments with low potential, in this way productivity will be increased and costs reduced, this being one of the most valuable functionalities in the platform. Login to Auravant "

In My Maps section you will find all the zoning and prescriptions you have saved for each field. There you can edit and adjust them as well as download them to make a variable application. In case you have your own zonings, you can import them by clicking on Upload Map. This section is also present in the mobile app so it is possible to monitor and control farm labor, both online and offline. "

Zoning and prescriptions

Q: Histogram customization

Compare fields with similar farm management (e.g.harvest and planting date) by creating your own histogram style. This will make enable to identify different field areas under the same classification criteria ( 0.3 Green) In the following video you can see the steps to create a custom histogram style . Login to Auravant "

Zoning and prescriptions

Zoning methods

Histogram

What is a prescription? Why and for what purpose do you use a prescription in applications?

Layered zoning

Histogram customization

My Maps

How to make a variable input prescription?