This new feature of our platform, allows you to increase the precision with which you estimate the yield of your crops, improving the process of sampling.
First, you must access the option within the menu. You must first select the field in which you want to make the estimate.
If you do not have any estimate done, the following message will appear for you to start loading one.
If you already have an estimate loaded for that field, the message will be as follows:
If you do not have any sowing loaded for that field, you must load one first:
After creating the sowing for the selected crop, you must load the estimated harvest date. According to that, the system recommends some images to make the estimate.
In case you want to select another image and it may not be convenient to estimate, the following alert will appear:
Then we continue with the step to take samples. If you already have samples loaded with previous estimates, you can select them and continue with them in case they are not complete.
Then, you will be able to mark the exclusion zones, which are those zones that you do not want to include within the area to be sampled. You can select the amount of samples to be taken. The platform calculates a sample every 10 hectares, but it is a value that you can edit as you wish.
After marking the exclusion zones and defining the number of samples to be taken, you are ready to go out to the farm to perform the sampling!
Once you are in the field with the app, you will see the samples that you have to take marked.
When you select the sample you want to start with, it will appear as follows:
You can adjust the weight of the seeds you entered in the first steps and, for each of the samples you must enter the average of grains per plant from each sampling point.
There are different methodologies to estimate yield. Auravant recommends the following one for each crop but you can use the one you use in your farm:
Corn Yield Estimation
At each sampling station, a random furrow should be taken and 16 continuous plants counted. Find the ear(s) of the first 15 plants, including the secondary ears. Count the total number of ears. In each ear count the number of rows of grains and the number of grains/row (count only one row).
a. Grains/ears: (number of rows) x (number of grains/rows). Do this for each ear.
b. Averages: for each sample calculate the averages of: i) number of rows; ii) grains/row and iii) grains/ear
Ears/plant: Total ears/15
Grains/plant:(Grains/ear) x (Ears/plant).
Estimated Yield in Soybeans
At each stop or sampling station, a random furrow should be taken and 31 continuous plants counted. From the 31 plants counted, pull out 15 plants randomly. Count the total number of fixed grains (main stem and branches) from each plant. Then calculate the average number of grains from each sampling station.
Once you enter the data in each of the samples and finish the sampling, you will be able to see the final result of your estimate from the web. The estimates you make will be saved for each field and can be used for future sampling.