Expanded Agronomic Log

The whole agronomic log for the LTER site as one big table.

This datatable is part of the Main Cropping System Experiment dataset. This dataset includes information about the LTER main site treatments, agronomic practices carried out on the treatments and approved site use requests.

Most long-term hypotheses associated with the KBS LTER site are being tested within the context of the main cropping systems study. This study was established on a 48 ha area on which a series of 7 different cropping systems were established in spring 1988, each replicated in one of 6 ha blocks. An eighth never-tilled successional treatment, is located 200 m off-site, replicated as four 0.06 ha plots.

Cropping systems include the following treatments:

  1. standard chemical input corn/soybean/wheat rotation conventionally tilled (corn/soybean prior to 1992)
  2. standard chemical input corn/soybean/wheat rotation no-tilled (corn/soybean prior to 1992)
  3. low chemical input corn/soybean/wheat rotation conventionally tilled (ridge till prior to 1994)
  4. zero chemical input corn/soybean wheat rotation conventionally tilled (ridge till prior to 1994)
  5. Populus clones on short-rotation (6-7 year) harvest cycle
  6. continuous alfalfa, replanted every 6-7 years
  7. early successional community on historically tilled soil
  8. successional community on never-tilled soil.

For specific crops in a given year see the Annual Crops Summary Table.

In 1993 a series of forest sites were added to the main cropping system study to provide long-term reference points and to allow hypotheses related to substrate diversity to be tested. These include:

  • DF – three deciduous forest stands, two old-growth and one 40-60 years post-cutting
  • CF – three conifer plantations, 40-60 years old
  • SF – three old-field (mid-successional) sites 40+ years post-abandonment.

All share a soil series with the main cropping system treatments, and are within 5 km of all other sites.

For each system (and for a number of microplot treatments nested within the main treatment plots) the following baseline variates are being measured (described in greater detail in other data set descriptors):

  • plant characteristics, including species distributions and abundances, net aboveground productivity by functional group (crop vs. non dominant biomass, selected non dominant biomass), economic yields, tissue C and N contents, seed bank composition;
  • soil chemical and physical characteristics, including soil moisture, pH, inorganic N and P pools, total C, N, and P pools, bulk density;
  • soil biological characteristics, including microbial biomass C and N, N mineralization rates (buried bags), microbial populations, invertebrate populations; and
  • insect and pathogen dynamics, including distributions and abundances of major insect pests and predators and of Fusarium pathogens.

Note

Experiment: Main Cropping System Experiment (MCSE)
Data available from: May 1988 to March 2017
Dataset: KBS004
Datatable ID: KBS004-008.63
Related Tables:
Personnel:
Last Updated 2017-10-24
Variate Description Units
obs date observation date
treatment experimental treatment
observation type type of activity recorded
comment a description of the activity performed
name plot name where the activity occurred
material material applied if any
rate rate at which the material was applied
units rate units
equipment equipment used
observation id observation id. This can be used to retrieve the original observation at http://aglog.kbs.msu.edu/observations/

Data Excerpt

obs_date treatment observation_type comment name material rate units equipment observation_id
2018-05-29 T3 Planting Planted soybeans in the LTER Main Site treatments T3, reps: 5, 4, and 3 were planted on May 29, 2018. KBS received rainfall just we finished planting rep 3. Enough rain that we could not continue planting the remaining replication. T3 reps: 6, 1, and 2 were planted on Saturday June 2, 2018. Equipment Used: Planted with the JD 7330 tractor and JD 1730 planter. Variety: Planted Pioneer P22T69R Roundup Ready soybeans. Planting depth: 1.25 inches. Row spacing: 15 inches. T3R1 Pioneer P22T69R (Round Up Ready) Soybean Seed 140000 seeds John Deere 1730 Maxemerge Plus Planter 4159
2018-05-29 T3 Planting Planted soybeans in the LTER Main Site treatments T3, reps: 5, 4, and 3 were planted on May 29, 2018. KBS received rainfall just we finished planting rep 3. Enough rain that we could not continue planting the remaining replication. T3 reps: 6, 1, and 2 were planted on Saturday June 2, 2018. Equipment Used: Planted with the JD 7330 tractor and JD 1730 planter. Variety: Planted Pioneer P22T69R Roundup Ready soybeans. Planting depth: 1.25 inches. Row spacing: 15 inches. T3R1 John Deere 7330 Tractor 4159
2018-05-29 T3 Planting Planted soybeans in the LTER Main Site treatments T3, reps: 5, 4, and 3 were planted on May 29, 2018. KBS received rainfall just we finished planting rep 3. Enough rain that we could not continue planting the remaining replication. T3 reps: 6, 1, and 2 were planted on Saturday June 2, 2018. Equipment Used: Planted with the JD 7330 tractor and JD 1730 planter. Variety: Planted Pioneer P22T69R Roundup Ready soybeans. Planting depth: 1.25 inches. Row spacing: 15 inches. T3R2 Pioneer P22T69R (Round Up Ready) Soybean Seed 140000 seeds John Deere 1730 Maxemerge Plus Planter 4159
2018-05-29 T3 Planting Planted soybeans in the LTER Main Site treatments T3, reps: 5, 4, and 3 were planted on May 29, 2018. KBS received rainfall just we finished planting rep 3. Enough rain that we could not continue planting the remaining replication. T3 reps: 6, 1, and 2 were planted on Saturday June 2, 2018. Equipment Used: Planted with the JD 7330 tractor and JD 1730 planter. Variety: Planted Pioneer P22T69R Roundup Ready soybeans. Planting depth: 1.25 inches. Row spacing: 15 inches. T3R2 John Deere 7330 Tractor 4159
2018-05-29 T3 Planting Planted soybeans in the LTER Main Site treatments T3, reps: 5, 4, and 3 were planted on May 29, 2018. KBS received rainfall just we finished planting rep 3. Enough rain that we could not continue planting the remaining replication. T3 reps: 6, 1, and 2 were planted on Saturday June 2, 2018. Equipment Used: Planted with the JD 7330 tractor and JD 1730 planter. Variety: Planted Pioneer P22T69R Roundup Ready soybeans. Planting depth: 1.25 inches. Row spacing: 15 inches. T3R3 Pioneer P22T69R (Round Up Ready) Soybean Seed 140000 seeds John Deere 1730 Maxemerge Plus Planter 4159
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