alfalfa autotoxicity

gary in neb. · Aug 28, 2015

how bad will autotoxicity in a newly planted this year alfalfa field be if I tear it up and replant next spring. Stand is bad, think there was herbicide carryover from the fella farming it last year.
thinking of 2 qt round up in about 2 weeks followed a week later with winter wheat with a plow down and replant next spring.
Gary

Brown Swiss · Aug 28, 2015

I usually just drop the drill in the thin spots the following spring, seems to work.

fixerupper · Aug 29, 2015

You really should wait a year to be safe. Some people say two years. Grow something other than alfalfa in that field next year and maybe the next year after that, then seed alfalfa.

Brown Swiss · Aug 30, 2015

Was just wondering if you did a soil test on it, where the PH is?

Northvale - PA · Aug 30, 2015

I have read publications that say the auto toxicity is a function of from the leaves that fall off and dry up. Maybe a new, thin stand has not dropped leaves yet, in enough quantity to affect new seed.

randallk · Sep 2, 2015

Since it was a "new stand" this year.......you should be alright by replanting it next spring. The toxins are generally of function of "established stands".

Eric in KY · Sep 9, 2015

(quoted from post at 02:12:50 09/03/15) Since it was a "new stand" this year.......you should be alright by replanting it next spring. The toxins are generally of function of "established stands".

I agree 100% with this post. You're good. I've re-drilled stands myself with no problems.

alfalfa autotoxicity

gary in neb.

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Brown Swiss

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fixerupper

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Brown Swiss

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Northvale - PA

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randallk

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Eric in KY

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