The county extension office gave me a lot of advice.
The extension office will explain how to gather and send the sample.
In New Jersey, where I live, I have found it impossible to locate my county extension office.
"Isaac will be a good start," said Scott Killpack, an agronomist at the University of Missouri's extension office in St. Charles County.
"They will spend hours online hunting for information," she said, "when a phone call to their county extension office would provide answers to questions in minutes".
Homeowners can also send a soil sample to their local cooperative extension office and get a reading for a nominal fee.
In the six weeks before the Unleashing, Lanphear met with the Downtown Sandpoint Business Association, the University of Idaho extension office and the branch manager for U.S. Bank.
You can test the pH yourself or send samples to a soil-testing laboratory (the county agricultural extension office may be helpful); acidity should be 4.0 to 5.2.
DEO = distance to nearest extension office.
Distance to agriculture extension office is used as an identifying instrument.
The distance to agriculture extension office residual estimates are not statistically significant, suggesting that the coefficients of the distance to agriculture extension office variable have been consistently estimated (Wooldridge 2015).
