Field Notes

<--2015-07-22 12:00:00 | 2015-08-19 13:00:00-->
Other sites visited today: East End | West Pond | Mayberry | Twitchell Rice
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Twitchell Alfalfa: 2015-08-06 10:30:00 (DOY 218)
Author: Joe Verfaillie
Others: Dennis, Sara, et fam

Summary: Field has been baled - bales just getting picked up, Forerunner wiring might be a problem.

Alfalfa
2015-08-06

I arrived about 10:30 with Dennis, Sara and family. The field has been baled and the bales are still on the field. They were just beginning to pick up the bales on the field to the east. There seemed to be some ground squirrel activity, but not impacting the tower yet.

Sara took care of the tower.
The 7500 read: 391.3ppm CO2, 781mmol/m3 H2O, 95.2SS, 26.92C, 101.1kPa

Dennis did the soil respiration measurements. The 6400 needs to be calibrated and the desiccant should be changed.

Kyoko and kids did the veg height. Sara did spectral measurements.

I checked on the Forerunner probes. They are all wired gray, blue and purple. The second two should probably be purple, gray, blue. The 2cm probe is sn GP20140009 and the 8cm probe is sn GP2013ex03. I will check the data before I start swapping wires.

Veg Height (cm): Tape measure from ground to top of plant
25, 24, 25, 23.5, 31, 23, 26, 23, 32, 32, 25, 27, 16, 28, 29, 42, 29, 28, 32, avg = 27.4, stdev = 5.32

3 photos found

TA_autocam_20150807_1245.jpg ( 2015-08-07 12:45:02 ) Full size: 1920x1440
Picking up bales