Field Notes

Bouldin Alfalfa: 2018-04-19 14:10:00 (DOY 109)
Author: Joe Verfaillie
Others: Daphne, Sam

Summary: Standard field work, clip plots, veg height, fields recently fertilized, swapped 7700.

Bouldin Alfalfa
2018-04-19

I arrived at 14:10 with Daphne and Sam. It was mostly sunny and breezy with puffy clouds. The roads were mostly dry and the alfalfa is already nearly knee high again. There were tire tracks in the fields and white granules on the ground â€“ probably fertilizer applied in the last couple days.

Sam took clip plots and veg height. Daphne collected data. We swapped the 7700: sn TG1-0223 came off and sn TG1-0424 went on.
sn 0223 read 1.96ppm CH4, 60RSSI â€“ 81 after cleaning
sn 0424 read: 2.0ppm CH4, 74RSSI
The wash reservoir was 2/3 full - refilled

The 7500 read: 400ppm CO2, 360mmol/m3 H2O, 20.2C, 101.7kPa, 106SS â€“ 107 after cleaning
The AIU was renamed from AIU-1568 to BA-1568 and restarted.

The rain bucket was plugged up and full of water to near the screen. I unplugged the hole and let the water tip through.

Daphne edited the Stardot ftp scripts to add year to the file names.

Daphne did LAI-2200 measurements. Two transects with 20 below readings each
BA0419: Parallel to rows
BA0419B: Perpendicular to rows and back to the sun.

I cleared the alfalfa from around the solar panels.

Left at 14:52

Next Mowing: 2018-04-23

Veg Height (cm): Tape measure from ground to top of plant
36, 38, 31, 36, 28, 25, 32, 27, 29, 28, 27, 28, 27, 29, 34, 28, 32, 36, 28, 44, avg = 31.2, stdev = 4.82

0 photos found

7 sets found

5 BA_flux graphs found