Cover Crop Biomass — Main Cropping System Experiment (MCSE)

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Productivity data for cover crops in LTER main site treatments. In wheat years the cover crop is planted in the spring and then tilled in the next spring, and the cover crop is measured before tillage. So the wheat years tend not to have a cover crop harvest. Weeds encountered during the cover crop harvest are reported in https://lter.kbs.msu.edu/datatables/40

This datatable is part of the Annual Net Primary Production on the Main Cropping System Experiment dataset. Aboveground annual net primary production (ANPP) has been measured on the LTER main site since 1990 and on the successional and forested sites since 1993. ANPP is measured at peak biomass for a given treatment. In some systems with multiple harvests or complex communities that have peaks occurring at different times of the year, measurements are taken at multiple times per year. Additional ANPP measurements are made where appropriate using leaf litter traps, estimates of diameter from tree basal diameter and for the poplar treatment occasional destructive harvests. See the ANPP protocol for descriptions of the sampling and measurement methods for each of the treatments.

Note

Experiment:	Main Cropping System Experiment (MCSE)
Data available from:	January 1990 to October 2022
Dataset:	KBS019
Datatable ID:	KBS019-005.107
Core Areas	Primary Production,Disturbance
Repository link:	http://doi.org/10.6073/pasta/f9b2a038b8a7ad43a252587a84935f30
Related Tables:	Standardized codes for identifying plant species Annual Crops and Alfalfa Biomass Non-crop (Weed) Biomass Scope of Non-crop Biomass Non-Crop (Weed) Species Diversity Index Annual Crops Population Estimates Temporal Harvest Top Non-crop species by Biomass Biomass Compilation for Herbaceous Systems Post Frost Biomass Biomass data from Hess et al. 2020 Biomass and Species composition from the Prairie Strips Switchgrass stand count in T6 T7 plant species composition
Personnel:	Phil Robertson, lead investigator Dick Harwood, original investigator Stacey VanderWulp, principal contact
Last Updated	2022-06-02

Variate	Description	Units
year	year of the growing season relevant for the sample
campaign	a major multi-year research activity with a discreet purpose
date	date on which sampling occured
treatment	main experimental treatment
replicate	replicate block, nested within treatment
station	replicate station, nested within block
species	species collected
biomass g	dry mass of sampled material in grams/meter squared	g/m²

Protocols
Plant Identification
MCSE: Aboveground Net Primary Productivity
Aboveground Net Primary Production - MCSE

Download complete data table The standard data use policy applies to the this dataset

Data Excerpt

year	campaign	date	treatment	replicate	station	species	biomass_g
2021	Cover Harvest	2021-05-13	T4	R5	S1	Secale cereale M.Bieb.	40.230000000000004
2021	Cover Harvest	2021-05-13	T4	R5	S2	Secale cereale M.Bieb.	31.02
2021	Cover Harvest	2021-05-13	T4	R5	S3	Secale cereale M.Bieb.	39.09
2021	Cover Harvest	2021-05-13	T4	R5	S4	Secale cereale M.Bieb.	55.144000000000005
2021	Cover Harvest	2021-05-13	T4	R5	S5	Secale cereale M.Bieb.	32.264

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