The periods of winter bale grazing period pasture reestablishment were major sources of P loss in the grazing scenarios
Again, an opportunity to talk a bit more about the most common pasture renovation practices (especially tillage). sdf
The periods of winter bale grazing period pasture reestablishment were major sources of P loss in the grazing scenarios
Again, an opportunity to talk a bit more about the most common pasture renovation practices (especially tillage). sdf
grazed pasture vs. corn silage(1y)-alfalfa(3y) grazed pasture -0.3
I'm still really surprised to see that a 5th year of pasture renovation totally negates the benefit of the other years of continuous cover in a pasture system compared to a corn silage and alfalfa system where tillage also occurs at least two times.
acknowledging that many producers may use less-aggressive (or no) tillage prior to pasture renovatio
Ok, this is good. I guess I would just add the caveat that comparing the uncommon worst-case grazing scenario to other dairy forage production systems may be a bit misleading.
However, disturbance during outwintering may be severe enough to require pasture reseeding, and some producers use tillage to level the soil and prepare the seedbed.
It would be good to convey a sense of what is the "typical" practice here. It might be worth asking Jason Cavadini directly this question. It's my sense that a complete renovation requiring some kind of tillage every 5 years is quite uncommon. I think that's an important bit of context especially when comparing to other forage production systems where tillage is much more common.
I would also link to this pasture renovation fact sheet somewhere: https://cropsandsoils.extension.wisc.edu/files/2023/05/Fact-Sheet-Renovating-Pastures.pdf
The no-till grazed pastures
Again, I think it's important to be clear that the tillage is only happening in that single year during re-seeding.
3.4.3.2 Decreasing tillage intensity
I would remind the reader that this is just tillage associated with the pasture re-seeding in the 5th year
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