shbailey wrote:

> On Dec 26, 7:53 pm, "Paul E. Lehmann"
> > wrote:
>> AxisOfBeagles wrote:
>> > And when do you fertilize, Paul? Is it
>> > annual, bi-annual, or more often? Do you
>> > apply through your drip, direct to soil,
>> > foliar spray, or some combination?
>>
>> > On 2007-12-26 13:32:53 -0800, "Paul E.
>> > Lehmann" > said:
>>
>> >> AxisOfBeagles wrote:
>>
>> >>> I'm interested in finding out from other
>> >>> growers what their fertilizing practicies
>> >>> are;
>>
>> >>> * When do you fertilize?
>> >>> * With what fertilizers?
>> >>> * How much?
>> >>> * How applied?
>>
>> >>> Also helpful to know where you are soil
>> >>> type, how you determine your fertilizing
>> >>> needs, etc.
>>
>> >> I base my program on soil and petiole sample
>> >> analysis and go by their (Penn State)
>> >> recommendations
>>
>> I believe it is best to fertilize in early fall
>> since the roots are still growing even though
>> there is no top growth. I apply direct to
>> soil.
>> I am not an expert. It is best to get with
>> your county ag office.
>
> Don't fertilize in the fall. You may encourage
> late growth or delayed
> dormancy which greatly increases the risk of
> freeze damage. Most recommendations are for an
> early spring (March - April) application with
> maybe subsequent applications if needed to
> increase vine vigor,
> but never after early July. Check with your
> local extension service and if they can't
> provide a good answer, there are recommendations
> available online.

I should have said late fall - after leaf fall and
dormancy starts. The roots are still growing
then but the transport is not in an upward
direction.