Field Notes

<--2015-08-19 10:50:00 | 2015-09-11 09:00:00-->
Other sites visited today: Mayberry | Twitchell Alfalfa | East End | West Pond
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Twitchell Rice: 2015-09-02 11:00:00 (DOY 245)
Author: Joe Verfaillie
Others: Sara, Kyle

Summary: Changed 7700 desiccant, full data collection including clip plots. Harvest in the next few weeks.

Twitchell Rice
2015-09-02

I arrived about 11:00 with Sara and Kyle. It was clear, sunny and hot with very little breeze. The field is dry and the rice is drying out fast. Talking to Jim later, harvest probably will start in the next week or so.

The 7700 read: 1.87ppm CH4, 52.5RSSI â€“ 70.7 after cleaning
The optics RH was 29%. I replaced the desiccant and it was still reading 29-30% but should drop over the next few days.

The 7500 read: 390.4ppm CO2, 630.8mmol/m3 H2O, 78.8SS, 25.56C, 101.64kPa
There were lots of spider webs on the eddy sensors, I cleaned them off.

Sara did veg height and spectral measurements and Kyle did clip plots.

Veg Height (cm): Tape measure from ground to top of plant
102, 68, 120, 69, 110, 6, 73, 78, 130, 80, 130, 71, 68, 110, 70, 66, 62, 71, 130, 75, avg = 84.5, stdev = 30.55

1 photos found

TW_autocam_20150902_1015.jpg ( 2015-09-02 10:15:02 ) Full size: 1920x1440
Joe on site