You can look at the third item here to do exactly what you want I think:

http://fruitadvisor.info/tfruit/clements/trvcalculator.html

Jon

On Thu, Mar 2, 2017 at 9:15 AM, John Bruguiere <j...@dickiebros.com> wrote:

> Hello all, need some healthy practical advice on sprayer calibration.
> Specifically air blast sprayers.  For decades we have measured a block of
> trees to determine acreage, sprayed out tank and determined gallons per
> acre based on what area was covered in tank. For example trees planted at 8
> x 18 spacing gave us 300 trees to acre, we sprayed out tank, counted trees
> and determined that our sprayer puts out 2.5 acres per tank.  we used this
> to determine amount of material to put in the tank etc. All the calibration
> formulas , I have seen require tree row volume(height x row spacing) to be
> part of equation.  I have 4-5 different spacings in 100 acres of orchard
> which makes it more of a headache to constantly figure gallons per acre and
> spray materials needed in each different block(thus the reason we simply
> measured trees per acre). I know my speed , i know my gallons per minute
> but can't find an equation that converts this to gallons per acre without
> tree row volume.
>
> need a simple but effective solution...any takers?
>
> in Virginia we have plums in full bloom, fantasia and red gold nectarines
> in pink and some open blooms, 21 degrees forecasted on friday and saturday
> night.
>
> God Bless,
>
> John Bruguiere
>
> Dickie Bros. Orchard
>
> On 1/30/2017 6:36 PM, Arthur Kelly wrote:
>
> I agree Mo.  We try and remove trees every year and plant every year.  I
> did use the word can to hedge the productive life of a block.
>
> Sent from my iPhone
>
> On Jan 30, 2017, at 5:48 PM, maurice tougas <appleman.maur...@gmail.com>
> wrote:
>
> Art
>
> I agree that it's great to be out pruning. I disagree that you should
> expect a longer productive life with high density systems. My goal here is
> to be looking at replanting when the orchard reaches twenty years or so.
> New varieties, strains of varieties and improved planting system encourage
> 5% renewal in my opinion.
>
> My best to you
> Mo Tougas
>
> On Mon, Jan 30, 2017 at 1:27 PM, George Greene <cortla...@icloud.com>
> wrote:
>
>> Art:
>>
>> Your comment makes sense to me.  Right now I have a cold and I fell on
>> the ice on Dec. 29th and I am still suffering.  Pt may help but it may take
>> a while.
>>
>> I suppose that you are enjoying the warmer weather.
>>
>> Be well, George
>>
>> On Jan 30, 2017, at 12:43 PM, kellyorchards <kellyorcha...@gmail.com>
>> wrote:
>>
>> Ruminations after a morning pruning.  The weather is ideal.  The temps
>> are in the high 20's, the wind is light and the sun is shining.  Weather
>> like this is why we live here.  Permanent limbs ultimately and inevitably
>> get too large.  This is why high density systems can have a longer
>> productive life than less dense orchards.
>>
>>
>>
>>
>> Art Kelly
>> Kelly Orchards
>> Acton, Maine
>> _______________________________________________
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>> apple-crop@virtualorchard.com
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>>
>>
>> George Greene
>> 68 Willow Lane
>> Wiscasset, ME 04578
>> 207-882-8074 <%28207%29%20882-8074>
>> cortla...@icloud.com
>>
>>
>>
>>
>>
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>>
>>
>
>
> --
> Maurice Tougas
> Tougas Family Farm
> Northborough,MA 01532
> 508-450-0844 <(508)%20450-0844>
>
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-- 
JMCEXTMAN
Jon Clements
cleme...@umext.umass.edu
aka 'Mr Liberty'
aka 'Mr Honeycrisp'
IM mrhoneycrisp
413.478.7219
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