Fertilizer Applications by Year and Treatment
Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use
This is a description of the fertilizer applied to all replicates at the GLBRC Intensive Site.
This datatable is part of the Agronomic Log Queries – GLBRC Biofuel Cropping System Experiment dataset. It dataset contains specific queries of agronomic activities carried out on the GLBRC Switchgrass Nitrogen-rate/Harvest Experiment, prepared from the Agronomic Log. The Agronomic Log contains all agromonic activities for multiple experiments. Contact the GLBRC Sustainability Information Manager if you need additional information from the aglog.
Note
| Experiment: | GLBRC Biofuel Cropping System Experiment |
| Data available from: | April 2008 to August 2019 |
| Dataset: | KBS113 |
| Datatable ID: | GLBRC083-002.19 |
| Repository link: | |
| Related Tables: | |
| Personnel: |
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| Last Updated | 2020-07-10 |
| Variate | Description | Units |
|---|---|---|
| obs date | observation date | |
| site | site location | |
| treatment | experimental treatment | |
| plot | experimental plot | |
| material | material applied | |
| rate kg ha | rate at which the material was applied | kg/ha |
| n rate kg ha | rate of nitrogen application | kg/ha |
| p rate kg ha | rate of phosphorus application | kg/ha |
| k rate kg ha | rate of potassium application | kg/ha |
| comment | aglog observation comment |
Data Excerpt
| obs_date | site | treatment | plot | material | rate_kg_ha | n_rate_kg_ha | p_rate_kg_ha | k_rate_kg_ha | comment |
|---|---|---|---|---|---|---|---|---|---|
| 2021-06-24 | KBS | G1 | G1R3 | Ammonium sulfate (AMS) | 4.0 | 1.0 | Sprayed GLBRC main site G1 all reps (5,1,2,3,4). Sprayed LTER main site T3 all reps (4,5,2,1,3,6). Sprayed LTER main site CE1 and CE3. Sprayed Roundup Powermax at 32 ounces/acre, Ammonium Sulfate at 3.4lbs/acre, and a small amount of de-foaming agent. Rate of spray was 20gal/acre on JD rate controller. Weather conditions at the beginning 8:00am: 64 degrees F, 10mph south wind, 63% Relative Humidity, Sunny. Weather conditions at the end 12:30pm: 75 degrees F, 11mph south wind, 57% Relative Humidity, Cloudy REI: 24 hours. | ||
| 2021-06-24 | KBS | G1 | G1R4 | Ammonium sulfate (AMS) | 4.0 | 1.0 | Sprayed GLBRC main site G1 all reps (5,1,2,3,4). Sprayed LTER main site T3 all reps (4,5,2,1,3,6). Sprayed LTER main site CE1 and CE3. Sprayed Roundup Powermax at 32 ounces/acre, Ammonium Sulfate at 3.4lbs/acre, and a small amount of de-foaming agent. Rate of spray was 20gal/acre on JD rate controller. Weather conditions at the beginning 8:00am: 64 degrees F, 10mph south wind, 63% Relative Humidity, Sunny. Weather conditions at the end 12:30pm: 75 degrees F, 11mph south wind, 57% Relative Humidity, Cloudy REI: 24 hours. | ||
| 2021-06-24 | KBS | G1 | G1R1 | Ammonium sulfate (AMS) | 4.0 | 1.0 | Sprayed GLBRC main site G1 all reps (5,1,2,3,4). Sprayed LTER main site T3 all reps (4,5,2,1,3,6). Sprayed LTER main site CE1 and CE3. Sprayed Roundup Powermax at 32 ounces/acre, Ammonium Sulfate at 3.4lbs/acre, and a small amount of de-foaming agent. Rate of spray was 20gal/acre on JD rate controller. Weather conditions at the beginning 8:00am: 64 degrees F, 10mph south wind, 63% Relative Humidity, Sunny. Weather conditions at the end 12:30pm: 75 degrees F, 11mph south wind, 57% Relative Humidity, Cloudy REI: 24 hours. | ||
| 2021-06-24 | KBS | G1 | G1R2 | Ammonium sulfate (AMS) | 4.0 | 1.0 | Sprayed GLBRC main site G1 all reps (5,1,2,3,4). Sprayed LTER main site T3 all reps (4,5,2,1,3,6). Sprayed LTER main site CE1 and CE3. Sprayed Roundup Powermax at 32 ounces/acre, Ammonium Sulfate at 3.4lbs/acre, and a small amount of de-foaming agent. Rate of spray was 20gal/acre on JD rate controller. Weather conditions at the beginning 8:00am: 64 degrees F, 10mph south wind, 63% Relative Humidity, Sunny. Weather conditions at the end 12:30pm: 75 degrees F, 11mph south wind, 57% Relative Humidity, Cloudy REI: 24 hours. | ||
| 2021-06-24 | KBS | G1 | G1R5 | Ammonium sulfate (AMS) | 4.0 | 1.0 | Sprayed GLBRC main site G1 all reps (5,1,2,3,4). Sprayed LTER main site T3 all reps (4,5,2,1,3,6). Sprayed LTER main site CE1 and CE3. Sprayed Roundup Powermax at 32 ounces/acre, Ammonium Sulfate at 3.4lbs/acre, and a small amount of de-foaming agent. Rate of spray was 20gal/acre on JD rate controller. Weather conditions at the beginning 8:00am: 64 degrees F, 10mph south wind, 63% Relative Humidity, Sunny. Weather conditions at the end 12:30pm: 75 degrees F, 11mph south wind, 57% Relative Humidity, Cloudy REI: 24 hours. |