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Location

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Date Posted

Glosta

SO this year I had all my plants destroyed by woodchucks and then finished off by disease. I never got a pkn set so there was relatively low plant uptake. I didnt add any calcium to the soil in any form what so ever. A few years ago i had continuosly battled low soil ph and lime is not cheap around here since we are not a very agricultural area. but living on the coast seashells are plentiful. I put about 1.5 yards of coarse crushed seashells in 2500 sq ft. Since then my Ph has hovered right around 7 steadily. and my calcium has always been right around 3000 ppm. but with no plant uptake this year my calcium skyrocketed. In 6 months my calcium went from 3100 to 4900 ppm. Which puts plant uptake right around 1800 ppm based on previous years tests. just thought this was interesting info.

10/12/2013 3:52:39 AM

Tinykinville

very interesting bryan how many ppm does a 40lb bag of gypsum add, if added per plant? in area you use per plant of course

10/12/2013 8:15:31 PM

South Bloomfield, Ohio

Gypsum is 23.28% calcium and ppm x 2.72 = pounds per acre-foot. A 40 pound bag adds roughly 9.3 pounds of calcium.

10/12/2013 9:13:10 PM

Glosta

200 ppm per if 40# were added to 1000 sq ft

10/12/2013 9:48:44 PM

Deerfield, Michigan

Mine is at 1843 ppm. What is the optimum range?

10/12/2013 10:48:56 PM

Glosta

Western labs did a study a few years ago. they set the sufficiency range from 1800 - 3000 ppm but also there has to be a balance between other nutrients. You can have too much of one thing and that will mees up other things.

10/13/2013 12:08:18 AM