LTER Data Catalog

Narrative Agronomic Log

A narrative log of the agronomic operations done on the Resource Gradient Study

The standard data use policy applies to the this dataset

Context:

The log of the resource gradient study agronomic management

Experiment: Resource Gradient Experiment
Temporal Coverage: 2000-05-22 to 2011-07-31
Dataset: KBS084
Datatable ID: KBS084-001.11
Personnel:
Last Updated 2011-08-17
Metadata
Variate Description Units
obs date The observation date
Comment A description of the agronomic operations performed
author The author of this observation

Data Excerpt

Obs Date Comment Author
2011-11-21 Flail moved corn stubble in three studies: both N-rate studies, irrigated and non-irrigated, and the corn treatments iin the LTER CE Biofuel Study. Treatments and plots harvested in the LTER CE Biofuel Study were treatments CE1 plots: 108, 202, 304, 401; and CE3 plots: 105, 207, 301, 403. Corn stubble was mowed to assist in stubble decomposition. Flail mowing was completed using the JD 7420b tractor and JD 115 flail mower. Joe Simmons
2011-11-17 Harvested corn from the LTER N-rate Study (Irrigated and non-Irrigated Fertility Gradient). For each plot two rows of corn were harvested from the middle of each plot (rows 3 and 4 from each plot). Plot weight and moisture content were obtained from the on-board FRS Harvest Master computer/software weighing system, by Juniper Systems. Joe Simmons
2011-07-26 Irrigated the LTER Irrigated Fertility Gradient Study (N-rate Study). The study was irrigated with the Valley 8000 Linear Irrigation System, 1.1 inches (2.79 cm) of water was applied (as measured by rain gauges located at the edges of plots 705 and 505). Pressure at the irrigator was 23 p.s.i., delay setting was 22. Pressure at the pump was 59 p.s.i. Time of application was between 8:15 a.m. and 10:00 a.m. Weather conditions at start were sunny, 72 degrees F (22.2 degrees C), 77% relative humidity, winds 2 mph from NW. Weather conditions at end were sunny, 77 degrees F (25 degrees C), 77% relative humidity, winds 4 mph from NW. Peter Hudy
2011-07-21 Irrigated the LTER Irrigated Fertility Gradient Study (N-rate Study). The study was irrigated with the Valley 8000 Linear Irrigation System, 1.0 inches (2.54 cm) of water was applied (as measured by rain gauges located at the edges of plots 704 and 504). Pressure at the irrigator was 24 p.s.i., delay setting was 22. Pressure at the pump was 58 p.s.i. Time of application was between 8:30 a.m. and 10:45 a.m. Weather conditions at start were sunny, 83 degrees F (28.3 degrees C), 72% relative humidity, winds gusting to 8 mph from WNW. Weather conditions at end were sunny, 87 degrees F (30.6 degrees C), 72% relative humidity, winds gusty to 13 mph from WNW. Peter Hudy
2011-07-08 Irrigated the LTER Irrigated Fertility Gradient Study (N-rate Study). The study was irrigated with the Valley 8000 Linear Irrigation System, 1.25 inches (3.06 cm) of water was applied (as measured by rain gauges located at the edges of plots 704 and 504). Pressure at the irrigator was 22 p.s.i., delay setting was 19.5. Pressure at the pump was 57 p.s.i. Time of application was between 8:30 a.m. and 10:45 a.m. Weather conditions at start were sunny, 68 degrees F (20 degrees C), 79% relative humidity, winds calm. Weather conditions at end were sunny, 79 degrees F (26.1 degrees C), 66% relative humidity, winds calm. During the irrigation, a mechanical issue caused excess water to be applied to part of the study. With the linear system almost centered over plots 605 and 805, the irrigator did not move for approximately 10 minutes which probably applied 8-10x more water in this area than compared to the rest of the study area. Because the width of the irrigation zone was approximately 30 feet, 1/2 of each of the adjacent plots (the east 1/2 of 604 and 804; the west 1/2 of 606 and 806) also received excess water. Peter Hudy
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