Yimmyb60 2022 soil test

[Yimmyb60]

Soil test taken Aug 9th

Treatments this year
3/10 - 3lbs per 100k 18-24-12
3/17 - 6oz RGS, AIR-8
4/3 - solucal plus 10lb per 1000k
4/25- 24-0-11, 4lb/1000k
4/26 - humic12, 9oz per 1000k
6/3 - humic12, 9oz per 1000k
6/7 - 7-0-20, 4.5lb per 1000k

[Yimmyb60]

Lawn is 6000sqft in back, 4000sqft in front. Both treated the same. Rye, TTTF and some KBG w/ grassy weeds.

Front: overall thick and green in spring. When soil gets around 70+ the brown leaves appear. Not large patches but almost every plant has some browning. I do have wild bermuda creeping in on a corner that i just have not dealt with yet and am not sure how i would treat, i would guess 1000sqft. throughout the summer eventually the Rye and KBG goes completely brown(no irrigation). TTTF and what I guess is pasture fescue stay green with some brown leaves. Then crabgrass and sedge start popping up along the driveway and walkway edges. Fall comes to a close with a little more green but the brown remaining until next spring. But what is green has lasted until spring for the past couple years. The neighbors is typically all brown.

Backyard, same as front but with more dog spots, trampled spots from traffic that require reseeding and only 1 small area of bermuda. Typically these trampled spots have crabgrass or other grassy weed growing by the end of July. I had 3 kwanzan cherry trees in the middle of the backyard that only grew poa so last week I cut the middle one down to see if letting more light down will let KBG/Fescue grow. That poa is already brown and dead anyway. Plan to put seed down this week and have tenacity for it. That area is about 1500sqft. I will probably spread kbg under the trees and overseed the rest of the lawn with fescue seed I have to fill any thin patches. I have not used tenacity yet so believe I will use that at seeding on the entire lawn. And follow up with prodiamine post germination.

[Yimmyb60]

Some seed is starting to sprout and we had some heavy rains yesterday but so far no washout that I can tell. The tenacity i blanket sprayed (first time on lawn) at .5tsp per 1000 is turning the poa white and the rest of the yard has so far been unaffected.

I am not sure what to do now, I think since poa has been in the section I am seeding for so long, should I treat again in 15 days from last application with tenacity as a pre m, or just leave it to establish the Kbg and drop prodiamine after a few mows and tenacity in the spring?

[turf_toes]

Assuming you haven’t reached the maximum allowed seasonal application for Tenacity, I’d reapply Tenacity.

But pay attention to the label rates.

[Yimmyb60]

No more blanket sprays, just spot spraying in the section that was seeded. Will that have an affect on kbg seedlings that have emerged?

[Yimmyb60]

I am noticing dead spots in the lawn, areas that did not turn white but brown and dead.

On a separate note, any reason why I am seeing less earthworms this year? I see the holes and casting mounds but during a rain in past years they would be all over the sidewalk and driveway, that hasn't been the case this year. Was it the lime application?

[turf_toes]

There’s no way anyone can say why you aren’t seeing earthworms in your yard.

There are simply far too many variables that could come into play.

A person prone to conspiratorial thinking might try to make a connection between your application of tenacity or some other product.

But correlation isn’t necessarily causation.

[Yimmyb60]

My initial thought is

[Yimmyb60]

Bump for interpretation.

Thank you

[Yimmyb60]

Bump for interpretation.

[turf_toes]

You might want to add a link to the soil interpretation thread.

[Yimmyb60]

It's on the list. Should I repost it?

[andy10917]

No. I have all my stuff ready to go - it will be done today.

[Yimmyb60]

Thank you Andy.

[andy10917]

I looked pretty closely at your applications and your soil test results, and I'm reasonably sure that your soil is not your problem. Also, your applications are not following any organized direction or pattern - they're almost kind of random.

The good news is that the soil really doesn't need that much help - it's pretty good actually. The TEC is at 10.6, which would make many members jealous. At that number, the Calcium/Magnesium/Potassium and Phosphorus all should hold in place well.

The cations are also pretty well balanced and generating an overall pH of 6.5 -- damned close to perfect.

The cherry on the top is the OM number: at 5.2% it's flat-out excellent.

The only number that's a bit short is Iron, and that's only a mild shortage.

Bottom line: your soil is not causing your browning issues. It's fine. You need to look at other potential problem sources - Irrigation and mowing habits are likely for you to investigate, as they align pretty well with your 70 degree soil temperature and related air temperatures. A high percentage of Perennial Ryegrass might begin to go dormant at those temperatures if mowed improperly or don't get water. But they should be recovering in September and October. The evenness of the browning does not have me thinking fungal issues.

What to do? For a NoMix lawn, I'd recommend Urea (46-0-0) at 1 lb/K every six weeks from mid-May to the end of June, and the end of August to the date of "The Pause" in your area.

Iron can be improved by added 2 lbs/K of Ferrous Sulfate in May and September.

Let me know if you want to deal with the micronutrients.

That's it. If you want to follow up on mowing, irrigation or herbicides, open a thread in the Cool-Season Grasses to continue on those topics.

[Yimmyb60]

Thanks Andy, if you could provide the micros reccomendations, I will give those a go If I can source the products.

The scatter brained applications were a result of two different methodologies. found this site after the yard mastery app hadn't given me the results I wanted and I was making applications from their recommendations with left over products from last year.

This year my aim is to follow the practices here as best as I can.

If I have time I think I will do a journal on here with some better record keeping as well.

[andy10917]

In the micro's, only Boron is short. 4 tablespoons/K of Twenty Mule Team Laundry Soap every 60 days. Apply as outlined in the Micronutrient Application Guide.