Absent Minded Farmer Posted March 11, 2022 Share Posted March 11, 2022 What is rotational pH? I'm going to venture a guess that it has something to do with crop rotation, but what exactly? Thanks! Mike 1 Quote Link to comment Share on other sites More sharing options...
from H to 80 Posted March 12, 2022 Share Posted March 12, 2022 You got me, never heard of such a thing. Quote Link to comment Share on other sites More sharing options...
Mike H Posted March 12, 2022 Share Posted March 12, 2022 http://weedscience.ca.uky.edu/files/rotation_and_replanting_guide.pd here is what duck duck go came up with first I heard of it too Mike Quote Link to comment Share on other sites More sharing options...
N S Posted March 18, 2022 Share Posted March 18, 2022 On 3/11/2022 at 9:43 AM, Absent Minded Farmer said: What is rotational pH? I'm going to venture a guess that it has something to do with crop rotation, but what exactly? Thanks! Mike That link didn't work for me, but whaddevah. I'm guessing you're right in that it has to do with crop rotation. I'm just guessing here but soil PH is either acidic or alkaline. Some crops push it one way or the other and if its to much one way or the other your rotation crop, and fertilizer input, should push it the way it needs to be for optimum soil PH. That's why soil samples are actually somewhat important. That would make sense to me, but then whaddaeyeknow. There is a program on RFD TV (Dish channel 231) called "AG PHD" that covers a lot of this type stuff as well as fertilizers, herbicides, etc. Pretty interesting but they move so fast I get lost. Lots. Penn State has good info and I'm sure other universities do as well. I do know that optimum soil makeup can make or break your crop harvest what ever crop you have planted. Maybe check with your state university Ag Extension office for a sounding board or further info. Quote Link to comment Share on other sites More sharing options...
Mike H Posted March 18, 2022 Share Posted March 18, 2022 not Shure what happened wen it was posted it talked about crop rotation and herbicide use and effects to following crops. had charts to use Mike Quote Link to comment Share on other sites More sharing options...
Mountain Heritage Posted March 19, 2022 Share Posted March 19, 2022 First time I ever heard of it too. Quote Link to comment Share on other sites More sharing options...
Michigan No Till Posted March 19, 2022 Share Posted March 19, 2022 Certain herbicides have a longer carryover into the next seasons crop, that's effected by a low or high soil PH Pursuit is one that comes to mind if corn is in the rotation. Quote Link to comment Share on other sites More sharing options...
Michigan No Till Posted March 19, 2022 Share Posted March 19, 2022 Treflan too. Quote Link to comment Share on other sites More sharing options...
Mountain Heritage Posted March 19, 2022 Share Posted March 19, 2022 Knew about carryover from herbicides - didn't know that's what it was called. Yes, some of the ones used in corn can be nasty and effect crops like wheat and barley very easily. Thankfully I've never had to deal with that issue as of yet. Quote Link to comment Share on other sites More sharing options...
Absent Minded Farmer Posted March 29, 2022 Author Share Posted March 29, 2022 Ok, this is what I got from UW Madison, "Rotational pH is the target pH for the crops in a selected rotation. If the field will stay in pasture, use the recommendation from the soil test report for pasture". Seems N S is on the ball with that. Many thanks, everyone for the help. Mike 1 Quote Link to comment Share on other sites More sharing options...
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