Field Notes

Twitchell Alfalfa: 2015-02-05 15:15:00 (DOY 36)
Author: Joe Verfaillie
Others: Sara

Summary: Standard fieldwork, Alfalfa looks good for February

Alfalfa
2015-02-05

I arrived about 3:15 with Sara. It was overcast and warm with little to no wind and the sun peeking through the clouds to the west at the end. The alfalfa looks pretty green for February. No change in the ground squirrel problems.

The 7500 read: 386.3ppm CO2, 823.3mmol/m3 H2O, 83.9SS, 14.71C, 101.27kPa
After cleaning: 423.8ppm CO2, 552.7mmol/m3 H2O, 90.6SS

Sara did soil respiration, veg height and spectral measurements.

I added some more split loom to the ground sensor wires. One of the thermocouples needs to be spliced.

I might have replaced the screw connector on the HMP60 fan.

Veg Height (cm): Tape measure from ground to top of plant
15, 10, 8, 20, 0, 7, 10, 2, 6, 7, 7, 12, 0, 7, 11, 5, 3, 10, 10, 2, avg = 7.6, stdev = 4.99

1 photos found

TA_autocam_20150205_1515.jpg ( 2015-02-05 15:15:01 ) Full size: 1920x1440
Sara on site