RE: How Much Potassium?
- Subject: RE: How Much Potassium?
- From: &* K* <k*@gra.midco.net>
- Date: Sat, 15 Aug 2009 16:57:41 -0500
You need to be careful with any of the potassium sources you are working
with. Potassium forces the plant to uptake more water, but if it is done
too early in the season your plant is not ready for the uptake of water and
it explodes...too much in-season potassium exaggerates this issue.
The trouble most people get into with MOP is that it is the highest analysis
of potash and you do not need much. MOP can and should be used in the fall
as a fertilizer amendment and not as a foliar feed. The 4-16-16 or similar
analysis is made with potassium hydroxide and is the best solution for
foliar feeding, or any low K fertilizers.
If your soil test shows up low in chloride, the MOP is going to be your
easiest option (MOP is Potassium Chloride).
-----Original Message-----
From: owner-pumpkins@hort.net [o*@hort.net] On Behalf Of
Steve Minor
Sent: Saturday, August 15, 2009 12:52 PM
To: pumpkins@hort.net
Subject: RE: How Much Potassium?
The more I hear about MOP, the more I consider it a poison for AGs. I'm
glad
I used it only once. I've learned in my 2nd year growing big ones that less
is more, except for watering, and the more organic, the better! Steve M.
--- On Sat, 8/15/09, Steve Minor <minok2014@yahoo.com> wrote:
From: Steve Minor <minok2014@yahoo.com>
Subject: RE: How Much Potassium?
To: pumpkins@hort.net
Date: Saturday, August 15, 2009, 7:18 AM
I just received an email from a fellow grower here in VT who threw out his
0-0-60 because it blew out his pumpkins, too. I'm sticking to low K
fertilizers such as seaweed emulsion and the like from now on. Steve M.
--- On Sat, 8/15/09, Stephen Jepsen <ctpumpkin@optonline.net> wrote:
From: Stephen Jepsen <ctpumpkin@optonline.net>
Subject: RE: How Much Potassium?
To: pumpkins@hort.net
Date: Saturday, August 15, 2009, 12:42 AM
Like Tom I favor sulfate of potash (0-0-50) over muriate (0-0-60). However
where salt is a concern (horse manure) but Potash has been confirmed
necessary (tissue test), you cannot beat using potassium nitrate for extreme
low salt & high solubility.
The tissue test is the sure fire way to confirm.
Stephen Jepsen
CT GS&PGA Director Emeritus
GPC Executive Committee
-----Original Message-----
From: owner-pumpkins@hort.net [o*@hort.net] On Behalf Of
Tom Privitera
Sent: Friday, August 14, 2009 9:17 PM
To: pumpkins@hort.net
Subject: RE: How Much Potassium?
Steve,
If you want a no fail way of telling what your plant might need or not need,
get a tissue test, I was able to see what the nutrient levels are in my
plant and know that I am doing ok without heavy ferts.
Tom
Tom Privitera
Extreme Web Sales, Inc.
www.extremepumpkinstore.com
Sales@extremepumpkinstore.com
-----Original Message-----
From: owner-pumpkins@hort.net [o*@hort.net] On Behalf Of
Steve Minor
Sent: Friday, August 14, 2009 9:03 PM
To: pumpkins@hort.net
Subject: RE: How Much Potassium?
Thanks, Tom. I have a heavy clay soil which I try to amend with lots of
composted horse manure, and a lot of anything else I can get my hands on.
Since clay soils are supposed to be already high in potassium, it just
dawned
on me why that AG blew out last year. I might do better to stick to
20-20-20
or something similar and cut waaaayyyy back on K-heavy fertilizers. Haste
makes waste--as in a big pile of dead pumpkin. Slow and steady wins the
weigh-off. Steve M.
--- On Fri, 8/14/09, Tom Privitera <tprivitera@optonline.net> wrote:
From: Tom Privitera <tprivitera@optonline.net>
Subject: RE: How Much Potassium?
To: pumpkins@hort.net
Date: Friday, August 14, 2009, 8:31 PM
Steve,
It really depends on your soil and plants. That said, 0-0-60 muriate of
potash is very high in salts, I highly recommend 0-0-50 if you want to use
something with that percentage of potash, I will be using a 3-18-18.
Tom
Tom Privitera
Extreme Web Sales, Inc.
www.extremepumpkinstore.com
Sales@extremepumpkinstore.com
-----Original Message-----
From: owner-pumpkins@hort.net [o*@hort.net] On Behalf Of
Steve Minor
Sent: Friday, August 14, 2009 7:40 PM
To: pumpkins@hort.net
Subject: How Much Potassium?
How much potassium (K) is recommended for the next
2 months? I'm using 2
tablespoons of 0-0-60 dissolved in a 20 gallon sprayer as
a temporary measure
once a week. My alpha dog is (according to GPC tables) @400
lbs and I don't
want to blow it (pun intended) as I did last year. Suggestions
from
consistent heavy hitters greatly appreciated. Steve M.
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