Field Notes

<--2015-08-06 11:00:00 | 2015-09-02 11:00:00-->
Other sites visited today: Mayberry | East End | West Pond | Twitchell Alfalfa
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Twitchell Rice: 2015-08-19 10:50:00 (DOY 231)
Author: Joe Verfaillie
Others: Patty

Summary: Field is drained, rice developing nicely, 7700 optics RH getting high, spectral and veg height.

Twitchell Rice
2015-08-19

I arrived about 10:50 with Patty. It was clear, sunny and warm with a strong breeze from the west. The field has been drained. The surface is damp but not muddy. The rice seeds are developing but still milky.

Patty did veg height and spectral measurements.

The 7700 read: 1.967ppm CH4, 38.3RSSI â€“ 72.1 after cleaning
The 7500 read: 375.0ppm CO2, 708.1mmol/m3 H2O, 74.8SS, 22.98C, 101.65kPa

The 7700 optic RH was 29%. It is supposed to be good below 30%. We need to calibrate the 7700 in the next month or so and should swap it out with the one in the lab. We can change the desiccant in the lab.

I cut the weeds around the boxes and the tipping bucket.

I topped off the 7700 wash box.

Patty washed the solar panels.

Veg Height (cm): Tape measure from ground to top of plant - Lots of weeds; starting to seed
110, 75, 70, 72, 74, 100, 110, 120, 90, 100, 80, 90, 80, 68, 80, 70, 70, 75, 70, 65, avg = 83.5, stdev = 16.35

0 photos found

6 sets found

12 TW_met graphs found