Narrative Agronomic Log

A narrative of the agronomic events on the Biodiversity Gradient Experiment

This datatable is part of the Agronomic Yields on the Biodiversity Gradient Experiment dataset. Agronomic yields have been measured on the Biodiversity Gradient Experiment since 2000. Samples are collected from the corn, soy and winter wheat plots before harvest by harvesting a subplot with a plot combine.

Initial soil moisture from the Biodiversity Gradient baseline sampling is also available for corn, soy and wheat plots.

Note

Experiment: Biodiversity Gradient Experiment
Data available from: May 2000 to December 2017
Dataset: KBS032
Datatable ID: KBS032-002.38
Related Tables:
Personnel:
Last Updated 2017-12-18
Variate Description Units
Obs date observation date
Comment description of the agronomic event
Author author of the observation

Data Excerpt

obs_date comment author
2018-05-02 Field cultivated (2X) LTER Biodiversity Study spring fallow treatment B2: (102, 206, 316, 402). Equipment Used: JD 7420a tractor and JD 960 10' field cultivator. Joe Simmons
2018-04-26 Chisel Plowed the LTER Biodiversity Study treatments: B2:(102, 206, 316, 402), B3:(111, 203, 306, 403), B4:(104, 220, 307, 404), B6:(107, 207, 317, 406), B7:(105, 219, 305, 407), B9:(119, 205, 314, 409), B10:(117, 209, 320, 410), B12:(109, 202, 313, 412), B13:(113, 212, 319, 413), B15:(112, 213, 301, 415), B16:(101, 210, 308, 416), B18:(108, 208, 311, 418), B19:(103, 218, 315, 419), B21:(100, 200, 300, 421). Chisel plowed all corn and soybean plots cover and no cover crops as well as spring fallow and continuous fallow. Chisel plowed with JD 7520 tractor and JD 714 chisel plow. Justin Mezo
2018-03-05 Frost seeded LTER Biodiversity study treatments B5 (114, 217, 312, 405), B8 (118, 214, 310, 408), B17 (116, 211, 302, 417), with Medium Red Clover at 12 lbs/A. Clover seed had a coating that was 34% of the seed weight. A pure live seed calculation was done to calculate amount of seed per acre needed to achieve the 12 lbs/A of pure live seed. The calculation equaled 20 lbs/A seeding rate to achieve the 12 lbs/A of pure seed. Clover was seeded with John Deere 5220 tractor traveling at 5.0 mph, gear C1 at 1600 rpm’s, and Gandy Air Seeder (15 ft boom length) equipped with 8 deflectors spaced 22.5 inches. Gandy motor setting was 1.8 with the red metering wheels in and the gates on the Gandy were in the first position. Boom height was 23 inches from the ground, bottom of the defectors were 20 inches from the ground. Start of application was 8:00 a.m. weather was sunny 27 degrees F 2-5 mph east wind. End of application 9:00 a.m. sunny 28 degrees F 10-13 mph east wind. Total amount of seed added was 36 pounds with 17 pounds remaining at the end. 19 pounds of seed applied over .85 acres equals 22 lbs/A seeding rate. This should give close to a 12-14 lbs/A pure live seeding rate. Justin Mezo
2017-12-01 Flail mowed corn stalks in LTER N-Rate Nitrogen study both irrigated and non irrigated, CE study corn plots, corn and soybean plots in biodiversity as well as the spring fallow plots. Justin Mezo
2017-12-01 No-till planted wheeler rye in the LTER Biodiversity study treatments B3 (111, 203, 306, 409), B4 (104, 220, 307, 404), B16 (101, 210, 308, 416). Plots B3 (111, 203,306, 403), B16 (101, and half of 210) were planted on November 14, 2017 but conditions were to wet to plant any more so all other plots were planted on December 1, 2017. Rye was planted with a target rate of 2.8 bu/A or 157lbs/A. Rye was actually seeded at 2.7 bu/A or 149 lbs/A. Planting depth was 1 to 1-1/2 inches deep and setting on drill was #39. Justin Mezo
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