RichardHarwood

Michigan State UniversityEast LansingMichigan

rharwood@msu.eduJosephSimmons (Agronomy Manager)

Michigan State University3700 East Gull Lake DriveHickory CornersMI49060USA

(269) 671-2528(269)671-2104simmonsj@kbs.msu.edu<kbsml_text><p>This data set contains information about agronomic yields for main site cropping systems. Main site cropping systems include treatments 1-4 (corn - wheat - soybean rotations) and treatment 6 (alfalfa) after 1994. For more complete descriptions of these systems see the data set descriptor for the main cropping system study (KBS004). Agronomic yields are measured during normal crop harvest; yields are determined by machine harvesters appropriate to each crop as described in the Agronomic protocol.</p></kbsml_text> A quick change.LTERKBSKellogg Biological StationHickory CornersMichiganGreat LakesKellogg Biological StationData Manager

Kellogg Biological Station3700 East Gull Lake DriveHickory CornersMi49060USAdata.manager@kbs.msu.eduhttp://lter.kbs.msu.edu

uid=KBS,o=lter,dc=ecoinformatics,dc=orgallpublicreadAgronomic YieldsHarvest data from the KBS LTER main site study..Agronomic YieldsNonecolumn,http://lter.kbs.msu.edu/datatables/51.csvDATEharvest dateyyyy-mm-dd864001987-4-18TrttreatmenttreatmentRepreplicatereplicateCropspecies or group sampled (5 letter code): GLYMX=Glycine max TRIAE=Triticum aestivium ZEAMX=Zea maysspecies or group sampled (5 letter code): GLYMX=Glycine max TRIAE=Triticum aestivium ZEAMX=Zea maysYield-bu_Acrop kernel/seed harvested at crop harvest in bu/A; numeric format; at standardized moisture for corn 15.5%, wheat/soybean 13%; conversions for corn: 56 pounds/bushel wheat/soybeans: 60 pounds/bushel0.5realYield-kg_hacrop kernel/seed harvested at crop harvest in kg/ha; numeric format; at standardized moisture for corn 15.5%, wheat/soybean 13%10.0realAgronomic Soil SamplesSoil samples taken for fertilizer recommendations. These are usually taken in the fall, and analysed by the Michigan State University Soils Laboratory.Agronomic Soil SamplesNonecolumn,http://lter.kbs.msu.edu/datatables/52.csvTreatmentMain site treatementMain site treatementReplicateMain site replicateMain site replicateDateDate the sample was taken onYYYY-mm-dd864001987-4-18pHmeasured pHphosphorusphosophorus1realpotassiumpotassium1realyearyear of the sampleYYYY864001987-4-18