My (turfgrass talk) column in the March/April issue of GCM China discusses water in the soil. I wrote about the amount of water that is held in the soil and how the amount of water expressed as a percentage can be converted to a volume of water. 

The article can be downloaded in Chinese or in English.

Topics for previous articles in this series include:

• the overarching importance of turfgrass growth rate (Nov/Dec 2013)
• what affects photosynthesis and consequently growth (Jan/Feb 2014)

Coming up in the next issue, I'll be writing about nitrogen use and nitrogen application rate.