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What is the best way to get P and K into notill ground?
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Mikenesd
Posted 4/8/2021 05:50 (#8939165 - in reply to #8939065)
Subject: RE: What is the best way to get P and K into notill ground?


Clark SD

Millhouse - 4/7/2021 22:09

I do agree that the top 2 inches hold a majority of those non mobile nutrients. But, does the plant have enough surface roots in the moist irrigated mulch surface?

 I can't speak to a mulch on a tilled field, but on long term no-till with a good amount of residue cover, in my experience most of the time there is moisture right up to the soil surface even in rainfed fields. Now couple that with a hybrid with a more fibrous root structure you can have a lot of root mass near the soil surface.
 Here is a picture of two hybrids planted in the same field that has been no-tilled for 29 years and was planted into rye stubble/ volunteer rye cover crop, notice the one to the left had a lot of fibrous roots near the soil surface.





(good hope l 4292 r 4421 (full).png)



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