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Williamsport, Pa.

bought some calcium 25 for folier application.. the bag says 4lbs per 400 gallons water..what would that be per gallon? thanks , scott

4/23/2010 4:48:37 PM

100th of a lb/gallon,,,,,gonna need a good scales for that one

google math=

(1 pound) / 100 = 4.5359237 grams

4/23/2010 6:21:46 PM

Pataskala,OH

1 Lb for 100 gal

.5 lb 50 gal

.25lb 25 gal

.12lb 12.5 gal

0.0096 lb 1 gal

0.0096 X 16 = .15

About half an ounce per gallon.

4/23/2010 7:11:45 PM

Williamsport, Pa.

thankyou gentelmen

4/24/2010 4:32:16 AM

Bloomington, IN

Ok I could be wrong but something doesn't seem right about Nics math. Seems like the 16 changed first part of the equation from a measurement of weight to a measurement of volume. I googled how many grams are in an ounce and there is 28 1/3 grams in an ounce:
http://www.google.com/#hl=en&source=hp&q=grams+in+an+ounces&aq=f&aqi=h1g-m1&aql=&oq=&gs_rfai=&fp=ef6e971561b14b8b
At half an ounce, 14 grams, that would mean a rate more than three times as much as Dan's math showed. Could someone confirm? I'm confused, lol. Don't want Scottie to accidently go overboard.

4/24/2010 2:41:39 PM

[email protected]

I get 4.48 grams/gal.

Find a friendly post office or borrow a Cub Scout pinewood derby car scale. Then turn it into an easy to recall volumetric measure.

A good Ohaus digital scale is $45. I have two. One for the boys and one for pumpkins.

4/24/2010 3:41:56 PM

Pataskala,OH

Sorry, I bet it is wrong I think I messed up at the 0.0096 X 16 part.

4/24/2010 8:20:34 PM

Willamette Valley, Oregon

I get just about the same as unkadan and tremor. This is an easy one for google conversions. Just type this into the google search box:

4 lbs per 400 gallons in g per gallon

Also basically restating Tremor: you'd then want to calculate Calcium 25's bulk density (or make a guess if you don't have a scale sensitive to grams) so you don't have to weigh out 4.5 g of stuff all the time.

If you don't have a sensitive scale just measure out a cup and weigh it. Then type this (substituting your weight for my guess of 7 oz) in to the google search box:

(4.5 g / (6 oz per cup)) per gallon in teaspoons per gallon

and there it is: teaspoons per gallon.

4/25/2010 2:19:05 AM

Williamsport, Pa.

thankyou again guys, i reload my own amunition and have ditgital scales and bar scales..so there it is 4.5 grams per gallon..guess i will get busy on the scales and start baging it up...thankyou

4/25/2010 5:21:03 AM

Section, AL

I didn't know one could google conversions like that.
Very easy.
thanks bathabitat

4/25/2010 10:17:28 AM

Massillon, Ohio

http://www.worldwidemetric.com/measurements.html

4/25/2010 10:47:32 AM

Pataskala,OH

Why didn't we just use the metric system when the founders of our nation in the 1700's came over it is a lot easier and everything is divisible by ten. Lol

4/25/2010 1:35:49 PM

Perhaps the colonialists were disillusioned by their earlier adoption of the Baumé scale and decided that another measurement system from France would be equally useful. (Full disclosure: I hate the Baumé scale.)

It could also be because metric wasn't adopted anywhere until 1791.

Back on point, 4 pounds per 400 gallons is 0.16 ounce/gallon, or 1.2 grams/liter (folks who complain about US customary units, then mix unit systems for their answer should be condemned to use the Baumé scale). If you have a standard backpack sprayer, you’re looking at roughly 14 grams for 12 liters or 0.5 ounces for 3 gallons.

4/26/2010 11:04:56 AM