Today I explained the same calculation about sand topdressing for the third time, so I need to write a blog post on this topic.
This is following the method of David Robinson, who says when you’ve written the same code 3 times, write a function; when you’ve given the same advice 3 times, write a blog post; and when you’ve done the blog post 3 times, write a book.
Last year I wrote about a soil temperature turfhack. The soil temperature is almost always between the day’s high and low temperature.
The soil temperature at a 5 cm depth immediately after planting manilagrass stolons on 22 April.
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.