Peter Green IrriMAX Live, webinar on event detection
Now this little box here it says, mini minimum root step. So what that means is anything less than 0.25 millimeter will not be detected and then so in any way, leave it at 0.25. And then you just say: okay and you get root activity where these little ovals are so the the vertical the vertical distance of the this oval shape is the amount of water use. So you can see as we go deeper, it gets less and less and I can zoom in a little bit more and the the horizontal distance is the duration. It starts and it ends, and there are examples you know roots are coming in and out of activity. You can see that here, for example, after this irrigation you can see. Ah things are starting to move and then they slow down again. Okay. So the next thing is, we can basically go one step further, which say is irrigation and root activity. So the algorithm automatically detects if you have a rising rate right, a rising rate like this one. Here it should be more than 0.4 of a millimetre per hour. Then it will be detected as irrigation. So let’s do that.
Well, we can actually zoom in a bit. So now you can see irrigation events right and how deep they got and we see. Okay, we go graph, we add a pain, so we add the same pain as separate level graph stacked and go like that.
We make it really easy for the user. For the end user, we say we want, we want the irrigation and the losses. Okay, and what that does is this. It basically shows you the route depths as a as a picture. Okay, it also shows you the irrigation depth, but it qualifies so you can see the roots you can. Actually you see there’s route activity at these lower levels, but then they fade away. I explain that in a minute, but if the irrigation is short, this is a good example. You can see route activity at this level here and you see the color, so this is active, but the irrigation only goes to the green level, so it’s under irrigation. Okay, you can see here as a depth of irrigation, but there’s no active roots right now here so it’s, an over irrigation right, okay, so blue is when over irrigated, then the red and green is perfect and green is perfect. When you choose irrigation analysis, it says okay route activity after route activity stopped. Do you assume that roots are still active two days afterwards, three days afterwards, one day after right? So, for example, in this case right here on the 11th of March, we seeing route activity on the 12th of March.
We at the Purple Line, we don’t, see it and at the 13th of March we don’t see it and on the 14th of March we don’t see it, but because you put here 3 days, extra right of route activity, it still assumes routes would be active at That level, so if I change that to just one day then with the green one, the green one, no because you said ok now after that day there there is no more route activity.
So in this case is over irrigation. But if you and we left us three days in most cases, if you say now, I think I just want to keep these three days still then you know it assumes roots are still effective, which they actually are, because you can see after the irrigation event. They start again, so basically what what you’re seeing here, if you go through the data you can see, you know how well the depths of irrigation is matched to the roots. This is a vineyard, so they deliberately and they irrigate a little bit so that’s – why they all read the idea of the classification, red, green and blue is that at the end of the season we have, we can count how many irrigations you know we’re good or Too much too little or just right, so you can see. Sometimes you get very slow changes you know after, but by adjusting the sensitivity right, you might be able to detect that, for example, you see a rise here, so let’s let’s change the event.
So I got ta make that point one and you can see now the irrigation is, is more fine tuned. It detects this one so was 0.4 of a millimeter. It would stop there, but was point one you can. You can show it now all the way. That’S. Only water use again if we go event, detection and we say irrigation productivity was increasing aeration. Can you see the the water the root activity really starts to so when you zoom interval this you can actually see when it really starts to improve.
Look at this.