Possible K deficiency?

[atrain15]

One of my seedlings that were first planted on 6/30/12 started showing slight browning of the tips and on the serrated edges. Any help or ideas? If you need more info, let me know. Thanks in advance.

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[Bloomin Idiot]

One of my seedlings that were first planted on 6/30/12 started showing slight browning of the tips and on the serrated edges. Any help or ideas? If you need more info, let me know. Thanks in advance.

[attachment=o285380]

Looks like cal/mg needed to me. If it starts on the backs of all leaves its sulfur..

[atrain15]

Looks like cal/mg needed to me. If it starts on the backs of all leaves its sulfur..

I'll check the backs of the leaves over the next two days. I gave it 1/2 dose of 7-7-7 to see if that helps. I'll keep you up to date.

What is a good source of Ca and Mg?

[PhatJay]

What is a good source of Ca and Mg?

Calmag.

[Bloomin Idiot]

What is a good source of Ca and Mg?

Solution to fixing a Calcium deficiency
To fix a calcium deficiency you can treat by foliar feeding with one teaspoon of dolomite lime or Garden lime per quart of water, Or Any Chemical/Organic nutrients that have Calcium in them will fix a Calcium deficiency.
you can take crushed up dolomite lime or garden lime in a gallon of water and water it in the soil. 1 to 2 teaspoons per gallon of water, which will be slow acting. Garden Gypsum, which is medium absorption. Limestone, which is medium absorption, Rock Phosphate and Animal wastes which are both medium/slow absorption. Note: Caution when using gypsum to an already acid soil (pH that is less than 5.5) can have a very bad effect on different types of plants by effecting the absorption of soil aluminum, which is poison to plant roots.

Solution to fixing a Magnesium deficiency
Any Chemical/Organic nutrients that have Magnesium in them will fix a Magnesium deficiency. (Only mixing at ½ strength when using chemical nutrients or it will cause nutrient burn!)
Other nutrients that have magnesium in them are: Epsom salts, which is fast absorption. Dolomite lime and or garden lime (same thing just called different) which is slow absorption. Sulfate of Potash, Magnesia which is medium absorption. Worm Castings, which is slow absorption. Crabshell which is slow absorption. Earth Juice Mircoblast, which is fast acting.

[attachment=o285381]

[atrain15]

Calmag.

Are there any other sources? The nearest place to buy Calmag is 45 minutes away.

[atrain15]

Solution to fixing a Calcium deficiency
To fix a calcium deficiency you can treat by foliar feeding with one teaspoon of dolomite lime or Garden lime per quart of water, Or Any Chemical/Organic nutrients that have Calcium in them will fix a Calcium deficiency.
you can take crushed up dolomite lime or garden lime in a gallon of water and water it in the soil. 1 to 2 teaspoons per gallon of water, which will be slow acting. Garden Gypsum, which is medium absorption. Limestone, which is medium absorption, Rock Phosphate and Animal wastes which are both medium/slow absorption. Note: Caution when using gypsum to an already acid soil (pH that is less than 5.5) can have a very bad effect on different types of plants by effecting the absorption of soil aluminum, which is poison to plant roots.

Solution to fixing a Magnesium deficiency
Any Chemical/Organic nutrients that have Magnesium in them will fix a Magnesium deficiency. (Only mixing at ½ strength when using chemical nutrients or it will cause nutrient burn!)
Other nutrients that have magnesium in them are: Epsom salts, which is fast absorption. Dolomite lime and or garden lime (same thing just called different) which is slow absorption. Sulfate of Potash, Magnesia which is medium absorption. Worm Castings, which is slow absorption. Crabshell which is slow absorption. Earth Juice Mircoblast, which is fast acting.

[attachment=o285381]

Are there any fast acting Calcium sources? Thanks for all the great info guys. Keep it coming!!