A few weeks ago I was on the phone with a grower worried that he had put too much nitrogen on his rice for the cool year we were having. Then, the weather turned and got really hot.
Its that time of year again when hot weather fuels the creation of ozone, or smog. Some pesticides emit volatile organic compounds (VOCs) that contribute to ozone formation. Using pesticides that release VOCs may be restricted in certain California locations between May 1 and October 31.
I just read an article from the latest edition of California Agriculture: Nitrogen fertilizer use in California: Assessing the data, trends and a way forward. The article compiles data about inorganic N fertilizer use by major crops in California and compares data from the 1970s to the 2000s.
