Farming Video | Late-Season Potassium Deficiency: Fix It Before It Costs You

17 Jul 253m 45s

At Kelly Garrett’s field day in northwest Iowa, the Damian Mason tackles a hidden but widespread issue: late-season potassium deficiency. Joined by XtremeAg's Kelly Garrett and Johnny Verell and Tommy Roach from Nachurs, they break down how potassium plays a vital role in grain fill and nutrient movement—and why foliar applications late in the season can be the key to unlocking yield. With soil base saturation imbalances and nutrient demand peaking, farmers may be unknowingly falling short. This video dives into practical ways to address K deficiency before it hurts your crop performance.

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00:00:00 There is a problem that you probably have and maybe you know about it, maybe you don't. It's called potassium deficiency. Late season. 00:00:05 We're standing out here roughly at Midseason, at Kelly Garrett's Field Day in northwest Iowa. I've got Tommy Roach with Nature's, my friend Johnny Verell. 00:00:13 Extreme Ag. Of course. Kelly Garrett's here 'cause it's his field day. Why does this problem and why does it exist? 00:00:18 I didn't even know about this. Kelly once said in the uh, another agronomic topic. 00:00:22 Every, every sampling finds that we need zinc. Late season. I didn't know we had a potassium problem. Why do 00:00:29 We have a problem? Potassium's considered uber nutrient moves everything else around in the plant and it, when it's come time 00:00:34 for green fill, you got a lot of uh, source sink happening where you're sending a lot of nutrition to that grain. 00:00:41 So it doesn't matter if it's corn grain or soybean, you, you gotta send nutrition to It. You're doing a sampling here. 22 00:00:46.845 --> 00:00:46.965 You're, you'll be showing people this field day. Tell me about the problem of potassium deficiency. 00:00:51 'cause this isn't even late season, but you said it will be. Well, it's kind of two problems that 00:00:54 that really make it bigger. And number one, the plant is so hungry when the ear is filling 00:00:59 and things like he said that we can't hardly get enough into the plant through the root system and things like that. 00:01:04 So some foliar applied late season K really helps put us over the top. And then one 00:01:08 of our main problems in our soil is a base saturation being out of balance. And when that base saturation is out of balance, 00:01:14 the K availability can suffer. And we do a lot of things to try to amend it, but we can always get it perfect. 00:01:20 So it really makes a foliar application very necessary. You have this problem and it's not about Iowa, it's everywhere. 00:01:26 It's a potassium problem. I Think it can be worse where we are sometimes because The heat, because of the soils. Well 00:01:30 The soils and probably the heat too to a certain extent. So for us, we're always checking to the plant, seeing 00:01:35 what it needs at our VT NV 11 application, we're usually putting out a form of potassium there too. And then we'll come back at brown silt 00:01:41 and hit it again to really push that grain field late season. Alright, So you obviously you, we we're a commodity class 00:01:47 and you talked about all your stuff K this and K that you're, you're a potassium pusher. You need to be, how am I putting this on and, 00:01:54 and how am ipu push your potassium on me. Tell me how I'm going about doing it. Tommy. So in his case, I mean he's got zinc problems late season. 00:02:01 So you, you've gotta have a vehicle to get zinc under the, So potassium potasium is going in just 00:02:06 as potassium is going in also as a carrying agent. Yes, it does help. Absolutely. It helps with all that. Like he said, it's the Uber. Yeah 00:02:11 And it mitigates all kinds of things early on. So like when we're doing things early on that might burn the plants and stuff like that, a lot 00:02:16 of times potassium acetate That's right. Really helps with that. And so that's been a big deal for us. 00:02:21 'cause Tommy even has some that's already preloaded with humic and stuff like that to help, you know, during those times where we're trying to prevent burn 00:02:27 during our nutritions that we're putting out. Because you're Not gonna put IDE like KCL, 00:02:31 you're not gonna solubilize that and do it. You Gotta get it in the plant. You spray, you gotta get in the plant and the bio. 00:02:36 Do you most farmers deal with this or don't know they have it? Do most farmers deal with this or don't know? 00:02:40 Farmers deal with this here. Deal with it. Yeah. Most farmers have the problem here, but traditionally just always frontload everything 00:02:45 with KCL or something like that. And then just hope. Hope you do as good as you can. And It never gets in the Plant. 00:02:50 Never gets in the plant. So The problem with front loading is it was out there. It was out there in April, but it doesn't do any good. 00:02:54 It's because the soil has it doesn't mean the plant does. That's Especially 00:02:57 when you have a base saturation problem Like we do. And that's where Foliar Foliar handles that. 00:03:01 Foliar handles that. Yeah. The company's name is Nature's, his name is Tommy Roach with Kelly Garrett and Johnny Verell. 00:03:06 I'm Dave Mason coming at you. Remember we do these field days, we do 'em at all the farms. This is a third of our field days. 00:03:11 We have four more in August. If you are watching this before then go to Extreme ag.farm and sign up. 00:03:16 They're free to attend, but you have to register. Extreme Ag Farm. We've got 'em in North Carolina, Jackson, Tennessee, north 00:03:23 of the border up in Quebec. We round it out at Temple Roads in Maryland. August 21st. Go check it out. We always bring these field days to you. 00:03:29 That's what we're here to do is help you farm better. Till next time from the extreme Ag crew at Kelly Garrett Field Day, potassium late season, 00:03:36 it's probably killing you or it's at least hurting you. 00:03:38.455 --> 00:03:40.125

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