Soil

Do you need to add beneficial microbes to the soil to make it function properly?

A correspondent wrote with a question about soil biology for controlling organics, adding compost tea to feed beneficial bacteria, and etc. There are two articles that I recommend as an introduction to this topic, both by David Zuberer.

Nitrogen, rain, and starting point estimates

Regular readers of this blog will be familar with some previous attempts to estimate the N mineralization in turfgrass soils. There was this from 2010, which I wrote about in 2015 saying “I wouldn’t explain it this way again.

A soil temperature turfhack

It’s always a good idea to know what the soil temperature is. One can measure it, or one can be confident that the average daily soil temperature close to the surface (5 cm, or 2 inch depth) is higher than the daily low temperature, and lower than the daily high temperature.

It doesn't have to be so complicated

Irrigation water quality, salinity, gypsum, and sodium—I’m not even going to mention the problems that bicarbonate doesn’t cause—are topics that are sure to stir up some discussion. I shared a couple old blog posts last week, related to sodium, sodicity, and gypsum, and sure enough, there were all kinds of responses, with much of it taking a tangent from what the blog posts were about.

Predicting organic matter in turfgrass soils

Jason Haines has been sharing some ideas on his Turf Hacker blog, and one that I think is especially interesting is the idea that one can precisely match the topdressing sand quantity to the growth of the grass.

"Relative to their own requirements, animals and microbes live in a carbon-rich, nitrogen-poor world"

I came across an interesting example as I was reading the ‘Internal Structure’ chapter in Joshua Schimel’s Writing Science. The example is a quotation from Nitrogen and Nature by Vitousek et al.

Is carbon "the next frontier in fertilization?"

There is an interesting article about carbon by Bryan G. and Tyler J. Hopkins in the latest issue of Crops & Soils magazine. Here’s a quick summary, put together with a series of quotes from the article.

Turf stories as Twitter Moments

I’ve gathered some collections of tweets into moments for easy viewing in sequence. I previously arranged these on Storify, but that service has shut down. Here’s a quick description of these moments.

I've got a new slide

After a long trip – this one to start the year was a particularly long one for me – I usually have some passages or topics to look up in my library when I get home.

New MLSN cheat sheet

I thought it might be useful to summarize the key details of MLSN in a cheat sheet. For people using MLSN, or wanting to use it, this 2 page cheat sheet is intended to be a handy reference.