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Old 11-08-2012, 01:40 AM   #1
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crab meal

Anybody have luck with crab meal as a top dress in flower?
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Old 11-08-2012, 01:48 AM   #2
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I have incorporated it in compost topdress mixes ...curious,what do you aim to achieve with crab shell as a topdress in flower?
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Old 11-08-2012, 01:53 AM   #3
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I'm not sure just was seeing if it would help with flavor and yield. What do u think do u think it will help r do u think it just better to compost
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Old 11-08-2012, 05:17 PM   #4
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We use crab shell meal for one component really.....the 'chitin' in the shell....for controlling insects that make a reproductive loop through the soil.

Some secondary benefits include the easily broken down form of calcium 'calcium carbonate'...and some sequestered nitrogen that will act as a slight slow release.

Topdressing with it...for me....is done with the intention of recycling the soil anyway.

There will be little benefit for a crab shell meal topdress in flower...unless you plan on recycling your soil.
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Old 11-08-2012, 09:26 PM   #5
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Hey I appreciate the information would it be good to put in a worm bin for food
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Old 11-08-2012, 10:04 PM   #6
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Hey I appreciate the information would it be good to put in a worm bin for food
Worms love calcium...which in turn makes EWC with that very calcium...the larger bits may take quite a while to break down.
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Old 11-09-2012, 12:42 AM   #7
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Chitin also helps with defensive mechanism in plants to help fight diseases.

Chitin, a polymer of N-acetyl-D-glucosamine, is an important component of fungal pathogenicity, since fungal pathogens with defects in chitin synthesis are significantly less virulent on the original susceptible hosts.5,24 Although plants lack chitin, they do secrete chitin-degrading enzymes.18,22 During fungal infection, plant cells secrete chitinases that release chitin fragments (chitooligosaccharides or chitin oligomers) from fungal cell walls that can act as an elicitor to induce plant innate immunity against the invading pathogen.3,18,22,23,25 In agreement with this, overexpression of chitinase in plants led to enhanced resistance to fungal pathogens.4,11,18 Furthermore, pretreatment of plants with chitooligosaccharides enhances plant resistance against various pathogens.26,29 Additionally, recent gene expression profiling studies demonstrated that chitooligosaccharides were a potent regulator of plant gene expression.6,20,29,30 All this suggests that a chitin perception and signal transduction pathway is present in plants to mediate plant disease resistance.

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2634388/
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Old 11-09-2012, 12:54 AM   #8
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Crab meal in worm bins.

The commercial Crab meals are a very, very fine grind. Smaller than a grain of sand and the sizing is very consistent.

HTH
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Old 11-09-2012, 01:01 AM   #9
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Crab meal in worm bins.

The commercial Crab meals are a very, very fine grind. Smaller than a grain of sand and the sizing is very consistent.

HTH

And it smells so awesome!!!
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Old 11-09-2012, 01:03 AM   #10
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That's one thing nice about kelp meal - the smell reminds me of living at the beach in Southern California. Days of Future Past

Fish meal - not so much
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Old 11-09-2012, 01:15 AM   #11
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Cool thanks guys I will put sum in my worm bin. What do u guys think about brewing it in a tea for 24
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Old 11-09-2012, 01:18 AM   #12
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Koolkush

No benefit whatsoever - at its core as others have noted we're talking about Calcium Carbonate (CaCO3) at 96%

Carbonates are not water soluble. It would prove very difficult for crabs, lobsters, shrimp to have much of a growth pattern if their shells were water soluble. (inside joke)

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Old 11-09-2012, 01:27 AM   #13
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Quote:
Originally Posted by ClackamasCootz View Post
Crab meal in worm bins.

The commercial Crab meals are a very, very fine grind. Smaller than a grain of sand and the sizing is very consistent.

HTH
...oh hell no..you're wrong and I'm telling mom.

I've been getting two types of product up here..the finer type from Concentrates and another type that seems to have larger bits of shell in it.

Not sure what that's all about....off brand maybe?
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Old 11-09-2012, 01:28 AM   #14
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ClackamasCootz thanks for saving me from wasting time and money.
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Old 11-09-2012, 01:32 AM   #15
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Not sure what that's all about....off brand maybe?
With the behemoth crab industry in the PNW it's probably a local product.

A specific product from MarionAg (Salem, Oregon) offers a Crustacean Meal that includes Dungeness Crab and Shrimp shells from the Oregon Coast. It's not unusual to find inconsistencies in that product. It is available in late December through February depending on supply.

That's the one I get every year.

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