Show Observation
User: Justin Mezo
Created on: 2017-06-20
Observation Date 2017-06-19
Comment:
Fertilized LTER N-rate study (Irrigated and Non-irrigated fertility gradient study) Corn plots.
Fertilizer applications were with 28-0-0 which supplied 28% nitrogen in the form of Urea-Ammonium Nitrate (UAN).
A single pass of a 28% applicator was used to knife in the correct amount of fertilizer.
The 28% applicator has seven coulters where the 5 inside coulters apply a full target rate and the 2 outside coulters apply half of the target rate.
The applicator is controlled by a rate controller as well as inline orifices.
Fertilizer was knifed roughly 5-6 inches into the ground.
The amounts of nitrogen applied were as follows:
F1 (101, 203, 309, 404, 501, 603, 709, 804) 0 lbs N/A;
F2 (102, 202, 304, 406, 502, 602, 704, 806) 0 lbs N/A;
F3 (103, 205, 302, 407, 503, 605, 702, 807) 30 lbs N/A (10 gal/A);
F4 (104, 208, 305, 403, 504, 608, 705, 803) 60 lbs N/A (20 gal/A);
F5 (105, 204, 306, 401, 505, 604, 706, 801) 90 lbs N/A (30 gal/A);
F6 (106, 209, 308, 402, 506, 609, 708, 802) 120 lbs N/A (40 gal/A);
F7 (107, 201, 307, 408, 507, 601, 707, 808) 150 lbs N/A (50 gal/A);
F8 (108, 207, 303, 405, 508, 607, 703, 805) 190 lbs N/A (64 gal/A);
F9 (109, 206, 301, 409, 509, 606, 701, 809) 230 lbs N/A (77 gal/A).
Equipment used: JD 7420b tractor and liquid fertilizer applicator that was built by the FSC that was equipped with a rate controller and inline orifices.
Orifices were changed accordingly with the application rate and treatments and the application speed was 4 mph.
Weather conditions at 2:45 p.m. were mostly sunny 72 degrees F, 62% humidity with 10-15 mph winds (12.51 average) coming out of the west. Humidity: 62% humidity, Dew Point: 57 degrees F. Soil Temperature: 89 degrees F. Soil Moisture: 11.80%.
Areas:
Resource_Gradient-Irrigated Resource_Gradient_Non-Irrigated
Observation Type:
Fertilizer Application
Activities:
Attachments: