yellow surrounding veins
- To: pumpkins@mallorn.com
- Subject: yellow surrounding veins
- From: b*@pacific.net (Vickie Brock)
- Date: Thu, 18 Jun 1998 22:26:45 -0300
>Bigjim
>Indiana
>
>
> > One more question I saw a little about Epsom Salts how and when should this
>be applied.
>...............................................
>
>Here is a reply , from Mike Orzolek @Penn State University.
>regarding my soil test results. Some information here about Epsom salt.
>Hope it helps a little.
>Marv
>
>
>
>To: MHicks4939@aol.com
>Marvin,
>After looking at your soil test results, there is no question that you have
>more than ample supplies of phosphorus, potassium, and calcium. These
>elements being excessive of itself is not a problem since plant toxicity
>has not been found in the field with any of these elements. However, what
>is more critical is the balance between potassium, magnesium and calcium.
>Plants generally will preferentially take up potassium 1st, magnesium 2nd,
>and calcium 3rd. With a very high potassium level and somewhat low
>magnesium level, as the giant pumpkin plant gets larger, you may see
>visible signs of magnesium defeciency in the plant - yellowing between the
>veins of older leaves. With this in mind, I would recommend that you apply
>foliar applications of Epsom salt (magnesium sulfate) - 2 ounces per gallon
>of water and apply to the pumpkin plants once a week.
>High phosphorus levels can reduce nitrogen uptake in the plant, but if your
>plants appear green, I wouldn't worry about the high phosphorus levels.
>If you have any additional questions, please contact me again at your
>convenience. Good Luck!
>Mike Orzolek
>
mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
mmmmmmmm
I have a few plants that have extreme yellowing surrounding the
veins.............on older leaves....my first thought was some
mosaic......but then i noticed it seems to be only happening to yellow
vined plants......genetics?? All thoughts welcome.........magnesium was
good in the soil report ..............thanks brock
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