nitrogen

One can look at the growth of the grass, as approximated by the clipping volume, in a couple of ways. There’s the quantity of clippings – here’s how much the grass is growing.

Every now and then I get some questions about the temperature-based growth potential (GP). The most recent question was about relative humidity: “I am curious about the effect relative humidity has on growth potential?

When I wrote this post back in 2017, I’d just had a conversation about this very question. “I think it is a tiny amount,” I said, “although sometimes I hear really large amounts when people tell me how much N comes in rain.

We’ll get to the N below. But wow! I didn’t know silica was such a hot topic! After writing a few days ago (original post here) about silica and green speed, and how it doesn’t make sense to me that silica application could increase green speed, there was quite a response — by e-mail, at this wild discussion on Facebook, and on Twitter.

This fact sheet provides an overview of the turfgrass growth potential (GP), explaining what it is, how it is calculated, providing examples of estimated plant nitrogen use based on GP, and much more, including suggestions on how the GP can be modified and extended.