What can I expect and what is next

hoyess(z5 ON Can)June 1, 2008

OK I've gone organic this year but I'm not sure if it is working or if I am just expecting too much too early?

I put down pelletized compost (I have over one acre lawn so for ease I went with product that could be spread with tow behind spreader) in mid-April at slightly more than recommended rate since getting a full pallet delivered was cheaper. On May 5 I put down:

-- alfafa meal at recommended rate

-- K-Mag at slightly more then recommended rate

-- some sulfer at recommended rate

Last two products were based on soil test recommendation as my soil is slightly sweet and low in magnesium.

Lawn is healthy looking but nowhere near green. I know not to expect lush dark green but was hoping for better. I'm also getting some clover popping up which tells me I may still have nitrogen deficiency. Not a lot of new dandelions so sulfer may halve helped with that.

How green will my lawn get? For the June application I was going to use corn gluten meal since that was recommended for summer (I did not use in spring since I overseed).

My soil test recommendation says to put down K-mag again and corn gluten. Should I just invest the $$ in more corn gluten to boost the starting process? (By the way my organic matter was OK in soil test but I have a lowish CEC -- 11). In fact the soil test recommend K-mag at all 4 applications -- this seems a bit excessive and expensive to me???

Thanks for the advice


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I've had similar results with alfalfa as it isn't the greatest fertilizer but good for use in the middle of summer when you don't necessarily want a lot of growth out of cool season grasses. It has a lot of nutrients that provide for even feeding throughout the year but if you want to see greening results out of a grain then you can't beat soybean (unless you have money or cheap access to CGM). Try that and see how it works for you in 3 weeks (I've had great results). Otherwise don't think you've just wasted time with the alfalfa, you've still given the soil some good nutrients!

    Bookmark   June 1, 2008 at 9:11PM
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I've never been a big fan of the weeds as indicators concept. I think part of the reason is that I spilled some 21-0-0 fertilizer (years ago, when I was using it) and it killed the grass in that area. The first thing that popped up there was black medic, supposedly a sign of nitrogen deficiency. I'm now convinced that clover (or black medic) popping up is a sign that you had seeds there ready to germinate.

What do you mean when you say your soil is slightly sweet? I think I've heard of soils being described as sweet or sour, but I don't really know what it means.

I'm not a big fan of spreading sulfur over a lawn. My soil is alkaline, but spreading the sulfur on the surface never seemed to help. I've targeted specific plants by drilling holes around the drip line with a bulb auger, pouring sulfur in the holes, then filling back up with soil. If it's spread on the surface, too much of it goes into the atmosphere.

For a large surface area like a lawn, you'll probably have better results just trying to increase the organic content of the soil.

    Bookmark   June 2, 2008 at 12:04AM
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Sweet=Alkaline, Sour=Acidic (think lemons).

I thought turfgrass liked a slightly high to neutral pH. So does slightly sweet mean it's above neutral pH or that the pH is slightly too high for your grass?

    Bookmark   June 4, 2008 at 1:03PM
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hoyess(z5 ON Can)

Yes my soil is alkaline according to my soil test (pH is 7.5, test says grass likes 6.5 to 7.0). I've decided to forgo the sulfur as this will save some $$ and as we are naturally alkaline I'd have to keep doing it. Seems silly. Having it more in the range recommended makes your lawn take up the nutrients more easily but I think I may be better to invest the $$ in more alfalfa or CGM which will also increase organic matter.


    Bookmark   June 4, 2008 at 2:42PM
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Old timey farmers, my grandfather included, claimed they could judge the pH of their soil by taste, hence "sweet" and "sour" soils. I'll confess I've tried it but maybe my dirt palate isn't as refined as it needs to be. I can't tell any difference at all.

    Bookmark   June 5, 2008 at 8:37AM
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