Fertilizer Application Report for the MCSE

Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use

This table lists the fertilizer that was applied to the LTER main site.

This datatable is part of the Main Cropping System Experiment Field Logs and treatment descriptions 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:

  • T1. Conventional: standard chemical input corn/soybean/wheat rotation conventionally tilled (corn/soybean prior to 1992)
  • T2. No-till: standard chemical input corn/soybean/wheat rotation no-tilled (corn/soybean prior to 1992)
  • T3. Reduced input: low chemical input corn/soybean/wheat rotation conventionally tilled (ridge till prior to 1994)
  • T4. Biologically based: zero chemical input corn/soybean wheat rotation conventionally tilled (ridge till prior to 1994)
  • T5. Poplar: Populus clones on short-rotation (6-7 year) harvest cycle
  • T6. Alfalfa: continuous alfalfa, replanted every 6-7 years (converted to switchgrass in 2018)
  • T7. Early successional community: historically tilled soil
  • T8. Mown grassland community: 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:

  • TCF. Coniferous forest: three conifer plantations, 40-60 years old
  • TDF. Decidious forest: three deciduous forest stands, two old-growth and one 40-60 years post-cutting
  • TSF. Mid-successional forest: 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: June 1989 to October 2019
Dataset: KBS004
Datatable ID: KBS004-009.99
Repository link: http://doi.org/10.6073/pasta/e5642426f9200404b6ba3af45ad9c423
Related Tables:
Personnel:
Last Updated 2020-07-10
Variate Description Units
obs date Date of the observation
treatment LTER Main Site Treatment
replicate LTER replicate that the observation is taken from
plot LTER plot
material The fertiizer material used
rate kg ha The rate of fertilizer application in kg per ha kg/ha
n rate kg ha The N fertilization rate in kg per ha rounded to the nearest kg kg/ha
p rate kg ha The P fertilization rate in kg per ha rounded to the nearest kg kg/ha
k rate kg ha The K fertilization rate in kg per ha rounded to the nearest kg kg/ha
comment The full aglog entry
source The URL of the aglog entry

Data Excerpt

obs_date treatment replicate plot material rate_kg_ha n_rate_kg_ha p_rate_kg_ha k_rate_kg_ha comment source
2022-03-22 T1 R3 T1R3 28% UAN (28-0-0) 240 67 0 0 Fertilized LTER Main Site winter wheat treatment T1 all replications (5,6,4,3,1, and 2), Plots were fertilized with 20 gallons per acre of (28-0-0). 28-0-0 weighs 10.67 lbs/gallon so 59.75 lbs of N/A was applied. Weather conditions 10 a.m. were cloudy 42 degrees F, 79.3% humidity 13 mph East wind. Conditions 1 p.m. cloudy and scattered showers, 43.3 degrees F 83.5% humidity 13 mph East winds. Application was completed using the John Deere 5220 Tractor and the Top Air 30ft sprayer. The sprayer was fitted with Chafer stream bars set to 1.0 orifice setting traveling an average of 6 mph. Applications in Rep 1,2,3,and 4 on the South headlands by the REX shelter sites was completed using one 15 ft pass and 1 to 2 30ft passes traveling east and west. This avoided driving in the shelter locations while applying the 20 gal/A. http://aglog.kbs.msu.edu/observations/5325
2022-03-22 T1 R4 T1R4 28% UAN (28-0-0) 240 67 0 0 Fertilized LTER Main Site winter wheat treatment T1 all replications (5,6,4,3,1, and 2), Plots were fertilized with 20 gallons per acre of (28-0-0). 28-0-0 weighs 10.67 lbs/gallon so 59.75 lbs of N/A was applied. Weather conditions 10 a.m. were cloudy 42 degrees F, 79.3% humidity 13 mph East wind. Conditions 1 p.m. cloudy and scattered showers, 43.3 degrees F 83.5% humidity 13 mph East winds. Application was completed using the John Deere 5220 Tractor and the Top Air 30ft sprayer. The sprayer was fitted with Chafer stream bars set to 1.0 orifice setting traveling an average of 6 mph. Applications in Rep 1,2,3,and 4 on the South headlands by the REX shelter sites was completed using one 15 ft pass and 1 to 2 30ft passes traveling east and west. This avoided driving in the shelter locations while applying the 20 gal/A. http://aglog.kbs.msu.edu/observations/5325
2022-03-22 T1 R1 T1R1 28% UAN (28-0-0) 240 67 0 0 Fertilized LTER Main Site winter wheat treatment T1 all replications (5,6,4,3,1, and 2), Plots were fertilized with 20 gallons per acre of (28-0-0). 28-0-0 weighs 10.67 lbs/gallon so 59.75 lbs of N/A was applied. Weather conditions 10 a.m. were cloudy 42 degrees F, 79.3% humidity 13 mph East wind. Conditions 1 p.m. cloudy and scattered showers, 43.3 degrees F 83.5% humidity 13 mph East winds. Application was completed using the John Deere 5220 Tractor and the Top Air 30ft sprayer. The sprayer was fitted with Chafer stream bars set to 1.0 orifice setting traveling an average of 6 mph. Applications in Rep 1,2,3,and 4 on the South headlands by the REX shelter sites was completed using one 15 ft pass and 1 to 2 30ft passes traveling east and west. This avoided driving in the shelter locations while applying the 20 gal/A. http://aglog.kbs.msu.edu/observations/5325
2022-03-22 T1 R2 T1R2 28% UAN (28-0-0) 240 67 0 0 Fertilized LTER Main Site winter wheat treatment T1 all replications (5,6,4,3,1, and 2), Plots were fertilized with 20 gallons per acre of (28-0-0). 28-0-0 weighs 10.67 lbs/gallon so 59.75 lbs of N/A was applied. Weather conditions 10 a.m. were cloudy 42 degrees F, 79.3% humidity 13 mph East wind. Conditions 1 p.m. cloudy and scattered showers, 43.3 degrees F 83.5% humidity 13 mph East winds. Application was completed using the John Deere 5220 Tractor and the Top Air 30ft sprayer. The sprayer was fitted with Chafer stream bars set to 1.0 orifice setting traveling an average of 6 mph. Applications in Rep 1,2,3,and 4 on the South headlands by the REX shelter sites was completed using one 15 ft pass and 1 to 2 30ft passes traveling east and west. This avoided driving in the shelter locations while applying the 20 gal/A. http://aglog.kbs.msu.edu/observations/5325
2022-03-22 T1 R5 T1R5 28% UAN (28-0-0) 240 67 0 0 Fertilized LTER Main Site winter wheat treatment T1 all replications (5,6,4,3,1, and 2), Plots were fertilized with 20 gallons per acre of (28-0-0). 28-0-0 weighs 10.67 lbs/gallon so 59.75 lbs of N/A was applied. Weather conditions 10 a.m. were cloudy 42 degrees F, 79.3% humidity 13 mph East wind. Conditions 1 p.m. cloudy and scattered showers, 43.3 degrees F 83.5% humidity 13 mph East winds. Application was completed using the John Deere 5220 Tractor and the Top Air 30ft sprayer. The sprayer was fitted with Chafer stream bars set to 1.0 orifice setting traveling an average of 6 mph. Applications in Rep 1,2,3,and 4 on the South headlands by the REX shelter sites was completed using one 15 ft pass and 1 to 2 30ft passes traveling east and west. This avoided driving in the shelter locations while applying the 20 gal/A. http://aglog.kbs.msu.edu/observations/5325
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