Field Notes

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Other sites visited today: Gilbert Tract | East End | Bouldin Corn
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Bouldin Alfalfa: 2024-09-12 13:00:00 (DOY 256)
Author: Daphne Szutu
Others: Koong

Summary: Alfalfa has been mowed and bales removed, regular data collection/cleaning

2024-09-12
Bouldin Alfalfa

Koong and I arrived around 13:00 PST. It was warm and sunny with a cool breeze. Since our last visit, the alfalfa has been mowed and the bales removed.

I downloaded met, cam, USB GHG, and FD data. I checked the phenocam clock as part of its routine check every 6 months and changed the clock -15sec from 13:22 to 13:21:45 PST to match the laptop time and saved the config. There was a error when ejecting the 7550 USB (slow LED blink) but all seem well after resetting the 7550.

Koong took spectral and veg height measurements and cleaned flux and rad sensors. We trimmed the alfalfa under the tower. So much faster with the sparse, late-season alfalfa. I dusted some litter off the undercanopy PAR sensor.

The 7500 read: 406ppm CO2, 570mmol/m3 H2O, 29.8C, 100.7kPa, 95SS - 99 after cleaning

We left at 13:35 PST. Yay for short days.

Next Mowing: 2024-09-26

Veg Height (cm): Tape measure from ground to top of plant
27, 23, 24, 19, 23, 23, 13, 13, 19, 14, 23, avg = 20.1, stdev = 4.87

0 photos found

7 sets found

4 BA_flux graphs found