jcmdallas wrote:I was told that it is high in nitrogen...
You need to find better sources of information as Greensand has ZERO nitrogen.jcmdallas wrote: I was told that it is high in nitrogen and good for alkaline soils which is exactly my current situation.
Maybe in your neighborhood, but not mine. More like 0-0-3. However I concur it varies from 0-0-3 up to as high as 0-0-7.MorpheusPA wrote:Greensand is about 0-0-7, with the 7 being moderately available.
cactus wrote:jcmdallas wrote:I was told that it is high in nitrogen...
Odd statement to make. I would take any of his/her advice with a big grain of salt (or sand).
texasweed wrote:There is one big negative with greensand, expense. Greensand is expensive and usually takes 40 to 60 pounds of it per 1000/ft2. Prices vary widely from 75 cents to $4 per pound. This is why most folks only use it in gardens rather than a lawn. However there is a flip side. One application usually last 3 to 5 years.
What exactly were you expecting?eriocaulon wrote: I don't want to sound like I'm anti-organic, but a couple of years ago,
texasweed wrote:What exactly were you expecting?eriocaulon wrote: I don't want to sound like I'm anti-organic, but a couple of years ago,
Well ole TW is no chemist or soil biologist, just an ole dirt sod farmer, but if your soil has a high PH level then it cannot break down the greensand mineral and make Potassium and iron available to the grass. Greensand is basically a ground up rock, and needs a slightly acidic and moist soil conditions to break it down.eriocaulon wrote: I have iron issues, especially with my high pH, and also low K. I did not notice any change at all. Soil test still showed low iron and low k.
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