Name: John Deere 856 15' 6 row S-tine row crop cultivator

2009-07-15 Mechanical Weed Control Cultivated LTER Biodiversity study, all treatments and replicates with 2009 Corn: B3 (111, 203, 306, 403) B6 (107, 207, 317, 406), B9 (119, 205, 314, 409), B12 (109, 202, 313, 412), B15 (112, 213, 301, 415), B18 (108, 208, 311, 418). Soy treatments were B4 (104, 220, 307, 404), B7 (105, 219, 305, 407), B10 (117, 209, 320, 410), B13 (113, 212, 319, 413), B16 (101, 210, 308, 416), B19 (103, 218, 315, 419) Cultivated with John Deere 6420 tractor and John Deere 856 15' 6 row S-tine cultivator traveling at at 3.5 mph.

2009-07-08 Mechanical Weed Control Cultivated LTER main site treatment 4 replications 1 and 6 with the JD 6420 tractor and a John Deere 15' 6 row S-tine row crop cultivator. Speed was 2.6-2.8 mph

2008-07-11 Mechanical Weed Control Row cultivated corn plots in the Biodiversity study. Treatments and plots planted to corn: B4: 104, 220, 307, 404; B7: 105, 219, 305, 407; B10: 117, 209, 320, 410; B12: 109, 202, 313, 412; B15: 112, 213, 301, 415; B18: 108, 208, 311, 418.

2008-07-14 Mechanical Weed Control Cultivated soybeans in the Biodiversity study. Treatments and plots planted to soybeans: B5: 114, 217, 312, 405; B8: 118, 214, 310, 408; B11: 110, 216, 309, 411; B13: 113, 212, 319, 413; B16: 101, 210, 308, 416; B19: 103, 218, 315, 419.

2008-07-14 Mechanical Weed Control Cultivated LTER main site T4 plots, reps: 2, 3, 4, 5, 1, and 6. Cultivated all business-as-usual plots in the T4 micro-plots.

2008-07-23 Mechanical Weed Control Cultivated all corn and soybeans plots in the Biodiversity study. Treatments and plots planted to corn: B4: 104, 220, 307, 404; B7: 105, 219, 305, 407; B10: 117, 209, 320, 410; B12: 109, 202, 313, 412; B15: 112, 213, 301, 415; B18: 108, 208, 311, 418. Treatments and plots planted to soybeans: B5: 114, 217, 312, 405; B8: 118, 214, 310, 408; B11: 110, 216, 309, 411; B13: 113, 212, 319, 413; B16: 101, 210, 308, 416; B19: 103, 218, 315, 419.

2014-06-28 Mechanical Weed Control Row cultivated the LTER Biodiversity Study, all 2014 corn and soybean plots. Corn plots were: B4 (104, 220, 307, 404), B7 (105, 219, 305, 407), B10 (117, 209, 320, 410), B12 (109, 202, 313, 412), B15 (112, 213, 301, 415), B18 (108, 208, 311, 418). Soybeans plots were: B5 (114, 217, 312, 405), B8 (118, 214, 310, 408), B11 (110, 216, 309, 411), B13, (113, 212, 319, 413), B16 (101, 210, 308, 416), B19 (103, 218, 315, 419). All soybean plots were row cultivated at 3.0 - 3.5 mph, corn plots were cultivated at 2.0-3 mph. Cultivator was set shallow, shovels were in the ground just an inch or two.

2014-06-28 Mechanical Weed Control Row cultivated LTER Main Site T4, all reps: 1, 5, 3, 4, 2, 6. All plots were cultivated at approximately 2.5 - 4 mph.

2014-06-27 Mechanical Weed Control Row cultivated LTER Main Site T3, all reps: 5, 4, 2, 3, 1, and 6. All plots were cultivated at approximately 6 - 7 mph. Row cultivated the BAU and weed free plots in the T3_micro-plots.

2014-07-06 Mechanical Weed Control Row cultivated LTER Main Site T4, all reps: 1, 2, 3, 4, 5, and 6. All plots were cultivated at approximately 3.5 - 4.5 mph. Row cultivated the BAU and weed free plots in the T4_micro-plots. Reps 1 and 2 were cultivated on July 5, 2014. Reps 3, 4, 5, and 6 were cultivated on July 6, 2014.

2014-07-11 Mechanical Weed Control Row cultivated the LTER Biodiversity Study, all 2014 corn and soybean plots. Corn plots were: B4 (104, 220, 307, 404), B7 (105, 219, 305, 407), B10 (117, 209, 320, 410), B12 (109, 202, 313, 412), B15 (112, 213, 301, 415), B18 (108, 208, 311, 418). Soybeans plots were: B5 (114, 217, 312, 405), B8 (118, 214, 310, 408), B11 (110, 216, 309, 411), B13, (113, 212, 319, 413), B16 (101, 210, 308, 416), B19 (103, 218, 315, 419). All soybean plots were row cultivated at 4.0-4.7 mph, corn plots were cultivated at 4.5-5 mph. Cultivator was set medium-deep, shovels were in the ground just 3-5 inches.

2014-07-17 Mechanical Weed Control Row cultivated the LTER Biodiversity Study soybean plots. Plots were: B5 (114, 217, 312, 405), B8 (118, 214, 310, 408), B11 (110, 216, 309, 411), B13, (113, 212, 319, 413), B16 (101, 210, 308, 416), B19 (103, 218, 315, 419). All soybean plots were row cultivated at 4.5 mph. Cultivator was set medium-deep, shovels were in the ground just 3-5 inches.

2015-07-06 Mechanical Weed Control Row cultivated LTER main site, treatment T4, replicates (5, 3, 4, 2, 1, 6). All plots were cultivated at approximately 2.5 - 3.5 mph.

2015-06-30 Mechanical Weed Control Row cultivated LTER main site, treatment T4, replicates (5, 4, 3, 2, 6, 1). All plots were cultivated at approximately 2.5 - 3.5 mph.

2015-06-30 Mechanical Weed Control Roe cultivated the LTER Biodiversity Study treatments 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), B14 (115, 204, 304, 414), B15 (112, 213, 301, 415), B16 (101, 210, 308, 416), B18 (108, 208, 311, 418), B19 (103, 218, 315, 419). Plots cultivated between 2-3 mph.

2015-07-06 Mechanical Weed Control Roe cultivated the LTER Biodiversity Study treatments 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), B14 (115, 204, 304, 414), B15 (112, 213, 301, 415), B16 (101, 210, 308, 416), B18 (108, 208, 311, 418), B19 (103, 218, 315, 419). Plots cultivated between 2-3 mph.

2015-07-22 Mechanical Weed Control Row cultivated LTER main site, treatment T4, replicates (1, 2, 3, 4, 5, 6). All plots were cultivated at approximately 4.2-4.8 mph.

2015-07-24 Mechanical Weed Control Roe cultivated the LTER Biodiversity Study corn and soybean treatments 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), B14 (115, 204, 304, 414), B15 (112, 213, 301, 415), B16 (101, 210, 308, 416), B18 (108, 208, 311, 418), B19 (103, 218, 315, 419). Corn plots cultivated between 4.5-5.5 mph, soybeans between 4-4.5 mph.

2016-06-28 Mechanical Weed Control Row cultivated the LTER Biodiversity Study treatments B3: (111, 203, 306, 403), B5: (114, 217, 312, 405), B6: (107, 207, 317, 406), B8: (118, 214, 310, 408), B9: (119, 205, 314, 409), B11: (110, 216, 309, 411), 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).

2016-07-20 Mechanical Weed Control Row cultivated the LTER Biodiversity Study corn and soybean treatments B3: (111, 203, 306, 403), B5: (114, 217, 312, 405), B6: (107, 207, 317, 406), B8: (118, 214, 310, 408), B9: (119, 205, 314, 409), B11: (110, 216, 309, 411), 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).

2017-06-28 Mechanical Weed Control Row cultivated LTER main site treatment T4 all replications. Cultivated part of rep 5 on June 26, 2017 but were not happy on how it was working. Reps 1&6 were cultivated on June 27, 2017, Reps 2, 3, 4 and the rest of 5 were cultivated on June 28, 2017. Corn cultivated at 2 - 2.2 mph.

2017-06-28 Mechanical Weed Control Row cultivated Biodiversity Study plots both corn and soybean plots: Soybeans cultivated at 3 mph and corn at 2 mph. Soybean plots B5 (114, 217, 312, 405), B8 (118, 214, 310, 408), B11: (110, 216, 309, 411), B12: (109, 202, 313, 412), B14: (115, 204, 304, 414), B16 (101, 210, 308, 416), B19: (103, 218, 315, 419). Corn plots B4 (104, 220, 307, 404), B7 (105, 219, 305, 407), B10: (117, 209, 320, 410), B13: (113, 212, 319, 413), B15 (112, 213, 301, 415), B18: (108, 208, 311, 418).

2017-07-06 Mechanical Weed Control Row cultivated LTER main site treatment T4 all replications, reps: 2, 3, 4, 1, 5, and 6. Rep 2 was cultivated on July 5, 2017. Equipment used: JD 7420a tractor and JD 856 row cultivator. Speed: cultivated at 2 mph.

2017-07-05 Mechanical Weed Control Row cultivated LTER main site treatment T3, all replications, (6, 2, 4, 5, 1, and 3). Equipment used: JD 7420a tractor and JD 856 row cultivator. Speed: cultivated at 4.0 - 5.0 mph.

2017-07-17 Mechanical Weed Control Row cultivated LTER main site treatment T4 all replications, reps: 1, 2, 3, 4, 5, and 6. Equipment used: JD 7420a tractor and JD 856 row cultivator. Speed: cultivated at 4-6 mph.

2017-07-17 Mechanical Weed Control Row cultivated Biodiversity Study plots both corn and soybean plots: Soybeans cultivated at 3-5 mph and corn at 3-5 mph. Soybean plots: B5 (114, 217, 312, 405), B8 (118, 214, 310, 408), B11: (110, 216, 309, 411), B12: (109, 202, 313, 412), B14: (115, 204, 304, 414), B16 (101, 210, 308, 416), B19: (103, 218, 315, 419). Corn plots: B4 (104, 220, 307, 404), B7 (105, 219, 305, 407), B10: (117, 209, 320, 410), B13: (113, 212, 319, 413), B15 (112, 213, 301, 415), B18: (108, 208, 311, 418).

2018-07-03 Mechanical Weed Control Row cultivated the LTER Biodiversity Corn and Soybean Plots 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). Speed was 3.3 mph and started on South East side of all plots.

2018-07-13 Mechanical Weed Control Row cultivated the LTER Biodiversity Corn and Soybean Plots 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). Speed was 3 mph in soybeans and 4.5 in corn. Started on South West side of all plots.

2018-07-13 Mechanical Weed Control Row cultivated the LTER Main Site T4 Soybean plots all replications (5, 3, 2, 4, 1, 6) Speed was 3 mph and started on South West side of all plots.

2018-07-19 Mechanical Weed Control Row cultivated the LTER Biodiversity Corn and Soybean Plots 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). Speed was 3.8 mph in soybeans and corn. Started on South east side of all plots.

2018-07-19 Mechanical Weed Control Row cultivated the LTER Main Site T4 Soybean plots all replications (5, 3, 2, 4, 1, 6) Speed was 3.8 mph and started on North West side of all plots.

2018-07-25 Mechanical Weed Control Row cultivated the LTER Biodiversity Corn Plots B3:(111, 203, 306, 403), B6:(107, 207, 317, 406), B9:(119, 205, 314, 409), B12:(109, 202, 313, 412), B15:(112, 213, 301, 415), B18:(108, 208, 311, 418).

2018-07-31 Mechanical Weed Control Row cultivated the LTER Main Site T4 Soybean plots all replications (5, 3, 2, 4, 1, 6) Speed was 4-4.5 mph and started on South West side of all plots.

2018-07-31 Mechanical Weed Control Row cultivated LTER Biodiversity Soybean Plots B4:(104, 220, 307, 404), B7:(105, 219, 305, 407), B10:(117, 209, 320, 410), B13:(113, 212, 319, 413), B16:(101, 210, 308, 416), B19:(103, 218, 315, 419).

2019-07-02 Mechanical Weed Control Row cultivated all corn and soybean plots in the LTER Biodiverdity. Cultivated twice (once in each direction) to increase the ability to remove weeds from the rows on corn and soybeans. Corn Plots in LTER Biodiversity Study treatments, B5 (114, 217, 312, 405), B8 (118, 214, 310, 408), B11 (110, 216, 309, 411), B13 (113, 212, 319, 413), B15 (112, 213, 301, 415), B18 (108, 208, 311, 418). Soybean in LTER Biodiversity Study treatments, B3 (111, 203, 306, 403), B6 (107, 207, 317, 406), B9 (119, 205, 314, 409), B12 (109, 202, 313, 412), B14 (115, 204, 304, 414), B16 (101, 210, 308, 416), B19 (103, 218, 315, 419). Equipement Used: JD7420a tractor and JD 856 6 row cultivator.

2019-07-03 Mechanical Weed Control Row cultivated all corn and soybean plots in the LTER Biodiverdity. After receiving 0.24 inches of rain at KBS last night we decided to row cultivate again today to try and improve the weed control. Cultivating with more moisture in the soil can improve the ability of the cultivator to remove weeds from the plots. Cultivated twice (once in each direction) to increase the ability to remove weeds from the rows on corn and soybeans. Corn Plots in LTER Biodiversity Study treatments, B5 (114, 217, 312, 405), B8 (118, 214, 310, 408), B11 (110, 216, 309, 411), B13 (113, 212, 319, 413), B15 (112, 213, 301, 415), B18 (108, 208, 311, 418). Soybean in LTER Biodiversity Study treatments, B3 (111, 203, 306, 403), B6 (107, 207, 317, 406), B9 (119, 205, 314, 409), B12 (109, 202, 313, 412), B14 (115, 204, 304, 414), B16 (101, 210, 308, 416), B19 (103, 218, 315, 419). Equipment Used: JD7420a tractor and JD 856 6 row cultivator.

2019-07-09 Mechanical Weed Control Row cultivated all corn and soybean plots in the LTER Biodiverdity. After receiving 0.24 inches of rain at KBS last night we decided to row cultivate again today to try and improve the weed control. Cultivating with more moisture in the soil can improve the ability of the cultivator to remove weeds from the plots. Cultivated twice (once in each direction) to increase the ability to remove weeds from the rows on corn and soybeans. Corn Plots in LTER Biodiversity Study treatments, B5 (114, 217, 312, 405), B8 (118, 214, 310, 408), B11 (110, 216, 309, 411), B13 (113, 212, 319, 413), B15 (112, 213, 301, 415), B18 (108, 208, 311, 418). Soybean in LTER Biodiversity Study treatments, B3 (111, 203, 306, 403), B6 (107, 207, 317, 406), B9 (119, 205, 314, 409), B12 (109, 202, 313, 412), B14 (115, 204, 304, 414), B16 (101, 210, 308, 416), B19 (103, 218, 315, 419). Equipment Used: JD7420a tractor and JD 856 6 row cultivator.

2019-07-24 Mechanical Weed Control Row cultivated all corn and soybean plots in the LTER Biodiverdity. Cultivated plots one time. Corn Plots in LTER Biodiversity Study treatments, B5 (114, 217, 312, 405), B8 (118, 214, 310, 408), B11 (110, 216, 309, 411), B13 (113, 212, 319, 413), B15 (112, 213, 301, 415), B18 (108, 208, 311, 418) were cultivated at 4.5 mph. Soybean in LTER Biodiversity Study treatments, B3 (111, 203, 306, 403), B6 (107, 207, 317, 406), B9 (119, 205, 314, 409), B12 (109, 202, 313, 412), B14 (115, 204, 304, 414), B16 (101, 210, 308, 416), B19 (103, 218, 315, 419) were cultivated at 4.0 mph.

2020-06-25 Mechanical Weed Control Row cultivated the LTER Main Site T4 Corn plots all replications. Speed was 2.5 mph. Started on South West side of all plots.

2020-06-26 Mechanical Weed Control Row cultivated the LTER Main Site T4 Corn plots all replications. Speed was 2.5mph. Started on North East side of all plots. Cultivated in opposite direction from previous cultivation to reduce weed pressure from approximately 5" of space to corn row left from first cultivation.

2020-07-09 Mechanical Weed Control Row cultivated the LTER Main Site T4 Corn plots all replications. Speed was 4 mph. Started on Southwest side of all plots.

2020-07-13 Mechanical Weed Control Row cultivated the LTER Main Site T4 Corn plots all replications. Speed was approximately 5 mph. Started on South East side of all plots. Cultivated in opposite direction from previous cultivation to reduce weed pressure from approximately 5" of space to corn row left from first cultivation.

2021-06-24 Mechanical Weed Control Row cultivated the LTER Main Site T4 soybean plots all replications. Rep 5,2,1,6,4 and 3 Speed was 2.7 to 3 mph. Cultivation was started on south west side of all plots.

2021-07-02 Mechanical Weed Control Row cultivated the LTER Main Site T4 soybean plots all replications. Rep 5,3,4,6,1 and 2 Speed was 3 to 3.5 mph. Cultivation was started on north west side of all plots. Plots were alternated to accommodate insect trap collection, keeping pass directions consistent.

2021-07-06 Mechanical Weed Control Row cultivated the LTER Main Site T4 soybean plots all replications. Rep 5,3,4,1,2 and 6 Speed was 3 to 3.5 mph. Cultivation was started on south west side of all plots. Plots were alternated to accommodate insect trap collection, keeping pass directions consistent.

2021-07-26 Mechanical Weed Control Row cultivated the LTER Main Site T4 soybean plots all replications. Rep 5,3,4,1,2 and 6 Speed was 3.5 to 4 mph. Cultivation was started on south west side of all plots. Plots were alternated to accommodate insect trap collection, keeping pass directions consistent. Cultivation was done using the John Deere 856 S tine cultivator on the John Deere 6420 tractor

2023-07-07 Mechanical Weed Control Row cultivated the corn in the LTER T4, all reps, reps 4, 1, 2, 3, 5, and 6.

2023-07-10 Mechanical Weed Control Row cultivated the corn in the LTER T4, all reps, reps 4, 3, 2, 1, 5, and 6. Reps 4, 3 and 2 were done on 7/10/23. Reps 1, 5 and 6 were done the morning of 7/11/23. Started cultivating in the Southwest corner of the plots.

2023-07-11 Mechanical Weed Control Row cultivated the corn in the LTER T4, all reps, reps 4, 3, 2, 1, 5, and 6. This was a second pass in the opposite direction over the plots to try to get better weed control. Started cultivating in the Northwest corner of the plots to change direction from previous pass. Speed was increased to 3-3.8 mph to try to cover up more weeds in the corn rows.

2023-07-12 Mechanical Weed Control Cultivate corn and soybeans. Each pass was done in both directions.

2023-07-20 Mechanical Weed Control Row cultivated the corn in the LTER T4, all reps, reps 6, 4, 1, 2, 3 and 5. Started cultivating in the Southwest corner of the plots. Speed was increased to 5-5.5 mph to try to cover up more weeds in the corn rows.

2024-06-28 Mechanical Weed Control Row cultivated the soybeans in the LTER T4, all reps, reps 5,3,2,4,1 and 6. Started cultivating in the Southwest corner of the plots. Speed was 3.5 mph.

2024-07-02 Mechanical Weed Control Row cultivated the soybeans in the LTER T4, all reps, reps 5,3,2,4,1 and 6. Started cultivating in the Northwest corner of the plots to alternate from the previous cultivation. Speed was 3.8 mph.

2024-07-01 Mechanical Weed Control Row cultivated the soybeans in the FSC F2 Soybean Variety Trial Field. Started cultivating in the Southwest corner of the plots. Speed was 3.5 mph.

2024-07-08 Mechanical Weed Control Row cultivated the soybeans in the LTER T4, all reps, reps 5, 3, 2, 4, 1 and 6. The cultivator passes (6 rows) of all plots containing T posts with insect sticky traps were avoided, the cultivation was done with T posts still in place. These posts are generally located near sampling stations. These rows were planned to be cultivated the next day, but due to an unexpectedly heavy rain they could not be worked. Started cultivating in the Southwest corner of the plots to alternate from the previous cultivation. Speed varied between 4.5 and 5 mph, depending on the height of the beans.