Iron in Irrigation Water: Fe, Mn & Sulfur Limits Chart (and Fixes)
October 13, 2026
6:31 pm
Iron in irrigation water above 0.1 ppm can plug drippers and stain foliage. Here’s the Fe, Mn and sulfur limits chart, how to test at the wellhead, and where treatment belongs.
Belushi’s Farm: A 12-Day Fertigation Retrofit
April 19, 2023
11:28 am
In 2023 we retrofitted the irrigation and fertigation system at Belushi’s Farm in Shelbyville, Illinois.
Cannabis and Responsible Water Management
July 19, 2023
7:32 pm
Cannabis is a thirsty crop. Outdoor plants average around 6 gallons (23 liters) per plant
How the Paragon Delivers Accurate Nutrient Dosing
September 19, 2023
6:27 pm
Most fertigation problems are not dosing problems in the obvious sense. The controller reports the