Show Observation
User: Peter Hudy
Created on: 2012-05-10
Observation Date 2012-05-09
Comment:
Fertilized the LTER Main Site Treatment T5 fertilizer microplots (all replications: 6, 5, 4, 3, 2, and 1) located as the north 50 feet of the T5 main plots. Only the microplots corresponding to treatments N4 (50 lbs N/acre, annual applications starting in 2011), and N5 (100 lbs N/acre, annual applications starting in 2011) were fertilized. Fertilizer was applied as granular CAN27 which is a 27% ammonium nitrate + calcium fertilizer. For the 50 lbs N/acre microplots, the fertilizer was applied in a single pass of the applicator. For the 100 lbs N/acre microplots, the fertilizer was applied in two passes of the applicator. Applied using the JohnDeere 4400 garden tractor and the small Gandy air-seeder. The Gandy was calibrated to apply the equivalent of 8' of width of fertilizer, but into a 6' wide pass (122.7 g/nozzle/15 seconds). Application speed was 2.9 mph. Weather was mostly sunny, 63 degrees F, approximately 52% relative humidity. Inside the tree canopy, wind was calm. All microplots were 6 rows of trees wide (approximately 47.8'). The five alleys inside the microplots received the full amount of fertilizer. The two outside alleys received the fertilizer only on the 1/2 of the width of the alley corresponding to that microplot and the applied amount corresponded to only a 4' width.
Areas:
T5_micro-plot
Observation Type:
Fertilizer Application
Activities:
Attachments: