Suburban Jungle Life said:
I use the k4l humic/fulvic/kelp mix at 10g/M, every time I fert, which is once a month. I have found that it does yellow the grass if sprayed and not irrigated after in temps above 90. FYI. With some rain a week later, the grass turned green again.
Thanks for the reply/info.
Do you find the product to be beneficial? Or, it's cheap (or was) so why not?
thegrassfactor has seen great results with RGS. I was looking for a lower cost alternative with the hopes it would be similar with results as well. I don't maintain acres like Matt does and nor do I have years of experience to see what the difference a change in a program can bring. I figured for the cost, if he has great results and the science behind it backs it up, why not try it? If you have a large lawn to maintain, then maybe try this on a small portion as a comparison without changing anything else and maybe on another small portion, use this product with a reduced N rate to see the difference between all 3 areas. If the humates (humic/fulvic) both chelate and increase availability of nutrients in the soil as well as extend release of nutrients (sprayed when applying NPK) then that's a great thing. Also, kelp has many minerals and is overall good for plant health. I view this as icing on the cake. If you have a sparse lawn or a salad bar, then I wouldn't bother. Weed control and a thick stand of turf would be my first concerns and then proper fert. This is a low cost addition to the fert and I'm seeing great results. If the cost gets too high, then I might reconsider it or do a test with half of the grass without it to see if there is any noticeable difference. Until then, it isn't cost prohibitive.
Here is my cost breakdown.
I purchased 5 lb for $55.
5 lb is 2267.96g
I use it at 10g/M
I apply it to 10M
I apply it 6 times a year.
That's enough to apply it for 3.75 years.
It costs $0.24 per M
That's $2.43 per application over 10M
It costs $14.55 per year to apply.
Comparing that to the cost of other products such as herbicides, fungicides, and grass seed this is cheap.
I'm always hunting for deals and now that this has gone up, that stinks. They do offer sales periodically so I would keep on their mailing list and wait for a sale.