Soil sample result help

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Centipede lawn. Very thin in spots. I like to think that is mostly due to poor drainage in those areas and heavy weed pressure which has since been corrected.

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Actually your soil chemistry looks to be good to ideal for a centipede lawn. Centipede grows very good in a “nutrient poor” soil which your soil analysis indicates.

I believe your analysis of thin spots from poor drainage and weed pressure is probably correct - if you’ve corrected the issue then good. If you feel your soil is compacted certainly soil aeration can help - no downside, and mostly upside.

I would personally just fertilize with the 15-0-15 at a rate of 1/2 lb N per 1000 sq ft (=3 1/3 lbs of 15-0-15) in the next 2 weeks with 2nd application in mid-late June/early July. Note: this is an LSU AgCenter recommendation.

Because centipede grows so slowly you’ll need to be patient for it to fill in thin areas, and stay on top of weeds in those areas.

I see your soil analysis is from a private lab - no issue with that - but most land-grant university’s soil testing labs don’t even analyze for N in a soil analysis because it such a labile, soluble, transitory nutrient the numbers are for all practical purposes meaningless for making a nitrogen fertilization recommendation for lawns.

I’d also recommend you send another lawn soil sample to the LSU AgCenter Soil Testing and Plant Analysis Laboratory (STPAL). LINK. If the results indicate that P and K is sufficiently low for a centipede lawn their computer algorithm will provide a recommendation of how much much P and K is going to be required to correct any deficiency for centipede. I suspect your soil pH is going to be spot on for centipede based on the private labs analysis.

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will reach out to Miss St ag. about soil samples from them. There’s actually an extension office right down the road from me.

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That’s perfect - use the extension service, wealth of knowledge, and that is their job.