John, Here is any easy calculation formula to take *sprayer output (gallons/min)*, *speed (ft/min)*, and *row spacing (ft)* to get *gallons/acre*. This assumes you drive every row when you spray. You need to get good readings on sprayer output and speed with a calibration.
Gallons/acre = Sprayer output (gallons/min) / ((Speed(ft/min) x row spacing (ft)) / 43560 (ft2 per acre)) I use this all the time. Please let me know if this makes sense. Thanks, Matthew Pellerin Treworgy Family Orchards Levant, ME 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 >> _______________________________________________ >> apple-crop mailing list >> apple-crop@virtualorchard.com >> http://virtualorchard.com/mailman/listinfo/apple-crop >> >> >> George Greene >> 68 Willow Lane >> Wiscasset, ME 04578 >> 207-882-8074 <%28207%29%20882-8074> >> cortla...@icloud.com >> >> >> >> >> >> _______________________________________________ >> apple-crop mailing list >> apple-crop@virtualorchard.com >> http://virtualorchard.com/mailman/listinfo/apple-crop >> >> > > > -- > Maurice Tougas > Tougas Family Farm > Northborough,MA 01532 > 508-450-0844 <(508)%20450-0844> > > _______________________________________________ > apple-crop mailing list > apple-crop@virtualorchard.com > http://virtualorchard.com/mailman/listinfo/apple-crop > > > > _______________________________________________ > apple-crop mailing > listapple-crop@virtualorchard.comhttp://virtualorchard.com/mailman/listinfo/apple-crop > > > > _______________________________________________ > apple-crop mailing list > apple-crop@virtualorchard.com > http://virtualorchard.com/mailman/listinfo/apple-crop > > -- Matthew Pellerin Agricultural Manager Treworgy Family Orchards 3876 Union St Levant, ME 04456 www.treworgyorchards.com 207-884-8354
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