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Stem Diamters of Poplar N Fertilization Study — Main Cropping System Experiment (MCSE)

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The basal diameter of the marked poplar trees in the center section of MCSE T5 fertilizer study microplots, measured at 15 cm above the ground from 2011 to 2017.

This datatable is part of the MCSE Poplar N Fertilization Study dataset.

This dataset contains the results of the N fertilization study conducted in microplots of the Main Cropping System Experiment (MCSE) Poplar treatment (T5) from 2010–2018. Trees planted in 2008 were exposed to different N fertilization rates (N1-N6), as described below and in the protocol. Leaf chemical composition, tree basal diameter, and harvest yield were measured to examine the effects of N fertilization on poplar growth and production.

  • N1 = 0 lbs N/acre
  • N2 = 50 lbs N/acre; applied once in 2011
  • N3 = 100 lbs N/acre; applied once in 2011
  • N4 = 50 lbs N/acre; applied annually 2011-2017
  • N5 = 100 lbs N/acre; applied annually 2011-2017
  • N6 = 100 lbs N/acre; applied once in the year prior to harvest; but did not occur, so N6 = 0 lbs N/acre

Note

Experiment: Main Cropping System Experiment (MCSE)
Data available from: July 2011 to November 2017
Dataset: KBS100
Datatable ID: kbs100-002.35
Core Areas Primary Production
Repository link: http://doi.org/10.6073/pasta/c6aee8e87d97d21aec90c7f723a2f0e5
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Last Updated 2024-03-18
Variate Description Units
sample date sample date
treatment treatment
replicate replicate
microplot treatment microplot
tree id the tree to be measured
diameter cm the tree diameter measured at 15 cm above the ground cm
comment comments about the measurement

Data Excerpt

sample_date treatment replicate microplot tree_id diameter_cm comment
2012-12-19 T5 R1 N3 1 9.906
2012-12-19 T5 R1 N3 2 9.304
2012-12-19 T5 R1 N3 3 6.545999999999999 tree split
2012-12-19 T5 R1 N3 4 9.289
2012-12-19 T5 R1 N3 5 9.456
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