what are you trying to single out & observe? you’ve added quite a few additions to the mix that singling out the results of one N source vs the others seems impossible now.
What's hard to follow? One area has only urea and the other 2 have fertilizers have more than just N....so my point I'm trying to make is do we in general make to much of a big deal about all the other elements we add in like humic, biochar, even P and K...at the end if the day it's all about the N...I will continue to use only urea in this area for rhe whole year and then will make my jusgement.what are you trying to single out & observe? you’ve added quite a few additions to the mix that singling out the results of one N source vs the others seems impossible now.
Ok so let's just compare the 2 mono Blueberry kbg areas one had urea twice and the other had scotts greenmax and baystate which is a local biosolid fert...I agree with @corneliani, you have different cultivars in different sections of your lawn, mono stand and mixed cultivars. I’m guessing those areas probably have different amount of sunlight.
I’m not familiar or don’t recall the composition the fertilizers you mentioned , with the exception of urea. But I’m guessing the others have either slow release and/or controlled release nitrogen.
In regard to humic and biochar, it’s unlikely you’ll see any immediate difference. For P & K, if you already have sufficient nutrient in your soil, then you won’t notice any difference.
I think it’s great that you’re doing a test, but to actually make a good comparison you’ll have a similar situation for each test plot with the exception of the product you’re comparing.
For one you're not controlling variables. Different cultivars without applying the same thing to them. Comparing Bay State (Massachusetts Milorganite) to a fast release fert makes no sense. Just about any non slow release will out perform it because they're meant to be used differently.What's hard to follow? One area has only urea and the other 2 have fertilizers have more than just N....so my point I'm trying to make is do we in general make to much of a big deal about all the other elements we add in like humic, biochar, even P and K...at the end if the day it's all about the N...I will continue to use only urea in this area for rhe whole year and then will make my jusgement.
It shouldn't. Not the insoluble slow release part. That's where insoluble fert helps. You're thinking of the soluble forms of fast and slow release N. But yes, it really does happen with soluble N. You can lose a lot of your urea before it even gets broken down to ammonium. When we get 3 inches of rain, a lot of what we put down in the prior week or so can get lost to runoff or go below the root zone. Ideally, we don't keep getting rain in huge chunks like that every 3 weeks. You can help it out a bit by keeping your soil on the drier side (though not so dry that it becomes hydrohpbic), but there's still only so much you can do.@Green I was thinking about this, I wonder how soil composition affects nutrient uptake. I have sandy soil, I mean it can pour for 2 days and I will have no puddles in my yard it just soaks it in. I'm wondering if the slow release part of the fertilizer is being soaked in below where its usable to the plant. So in this case using all fast release I would benefit more....??? Thoughts