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Pgh, Pa

I've been doing a lot of reading but haven't come across this info. I know that for foliar spaying it should be mixed 1 oz. per gallon. So if I sprayed 1 gal of max I'd end up with 1 ounce of fertizer on a 300 sq. ft. plant. If I sprayed 10 gallons in that mixture I'd end up with 10 oz. in the same area. So how much is right??????

Thanks a ton,
Kevin

8/31/2007 2:13:55 AM

Ctpumpkin@optonline.net

Hey Kevin,

You're thinking properly. I wish everyone thought like this. The key is to stop thinking in terms of OZ PER GALLON & start thinking in terms of OZ PER 1000 SQUARE FEET.

Another item to use in determining the rate applied is the frequency of application & the results of a soil test.

Let's say the soil test lab has recommended 1 lb of Nitrogen per 1000 sf per season. If your particular fish/sea-weed selection contained 3% Nitrogen & weighed 10 lbs per gallon then you could safely apply 3.3 gallons over the course of the growing season. WHY?

1 lb of Nitrogen divided by 3% = 33 POUNDS of Liquid concentrate divided by 10 lbs per gallon = 3.3 gallons of concentrate per 1000 sq ft per season.

Of course we also need to consider the growing curve which favors Nitrogen early to make vines run, lowers down during fruit set, then ramps back up to a moderate level to finish (with added potash toward the end).

If we blindly drench nutrients from time to time but never bother to consider the accumulation of foliar applied nutrients then we'll have some big-fat-blue-bloated disease prone leaves & probably lose quite a few fruit to splits along the way. Applying manure after a soil test would HALVE to desired pound of supplemental Nitrogen. Add in the 6% Nitrogen that is found in most chelated Calcium solutions & we could end up in real trouble.

You're on the right track. Soil test - Amend - Calculate needs - Program WHEN - Then use a calendar to space it out.

Pretty revealing exercise for those who will take the time to do it.

9/1/2007 9:19:08 AM

Picton,ON (j.vincent@xplornet.ca)

Steve

This is a very good point. Most N recomendations consider an "ordinary" OM of 4%. If we elivate or OM to 10% we have likely an additional 60 lbs of available N per acre. So....how much N over the course of the season is really enough. I think with accumulated N applied threw foliar, drench, preseason apps of manure and compost, available N from accumulated Om we are pushing equivilant of 200+ lbs/ acre avalable N without any serious problems. (Sorry, I think in terms of lbs/acre)

9/1/2007 10:55:42 AM

Sheridan . NY

WELL--since im the ounce guy-- the reason we do it ozs to the gallon of water is-- here in my area were every one think in gallons of water to the acres mixed --every one know how much spray it takes to cover there crop--just as it takes 2 gals to cover 4 full grown GP plants about 2700 sq ft----so it just depends on what you doing -feeding or planting or what ever--craig

9/1/2007 8:19:45 PM

Ctpumpkin@optonline.net

Oh I agree that foliar applications are best calculated in oz/gal. The Agro-K program is well defined in small frequent applications to avoid over-application.

That said, a grower could use the Agro-K line in a high volume drench if they wanted to. I doubt that the extra water would make much long term difference in result (within reason)

Small people can travel to the fair in a small car or a big truck but they'll still get there.

My other point is that we must consider ALL of the season's inputs to make sure we're not going overboard.

9/1/2007 11:33:14 PM

Sheridan . NY

yep---just as in fall or spring prep 4-6 ozs of symbex and 8-10 oz molasses-- or any product in drench---or as we have just done here to bring sugar brixs up in vineyards--6 0zs of 0 0 6 organic potassium---normal feeding with the Agro-k are every 12-16 days for regular crops--and yep steady and balanced feeding is the key for GP'S-- craig

9/2/2007 8:03:49 AM