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Are polycultures for silage pragmatic medleys or gallimaufries?: Silage polyculture data 2016 to 2018
Identification_Information:
Citation:
Citation_Information:
Originator:The Pennsylvania State University
Publication_Date:2021
Title:
Are polycultures for silage pragmatic medleys or gallimaufries?: Silage polyculture data 2016 to 2018
Other_Citation_Details:
Burton, A. B. Penn State Department of Plant Science Roth, G. W. Penn State Department of Plant Science Kemanian, A. R. Penn State College of Agricultural Sciences Baniszewski , J. Penn State Department of Entomology Tooker, J. F. Penn State Department of Entomology
Online_Linkage: https://www.datacommons.psu.edu/
Description:
Abstract: 
This dataset and accompanying supplemental materials are companion pieces to the journal article “Are polycultures for silage pragmatic medleys or gallimaufries?” published in Agronomy Journal in 2021 by Burton et al. Maize silage is a particularly important dairy crop in Pennsylvania and across the US, but abiotic stress stemming from climate change can cause yearly variation in yield. Polycultures are mixtures of species that are grown together in the same field at the same time; their use may help stabilize yield across years. Silage is a good candidate to test polyculture use in a modern row crop system due to the technique of harvesting the plant whole, chopping, and mixing. We tested four monocultures (two maize, one soy, and one sorghum) and three polycultures (maize + sorghum, maize + soy, and maize + sorghum + soy + sunflower) and assessed biomass yield, residual soil nitrogen, and nitrogen, phosphorus, and potassium content of the harvested material. Plots were randomized in five blocks for three years (2016-2018) in Rock Springs, Pennsylvania (40°42'58.3" N, 77°56'05.3" W; elevation 330 m above sea level). Key findings were that maize + sorghum polycultures can retain yields similar to maize monocultures and increase potassium content. Maize + soy polycultures may decrease yield compared to maize monocultures, but increase nitrogen, phosphorus, and potassium content. Additionally, soy-containing treatments tended to leave more residual nitrogen in the ground compared to sorghum-containing treatments.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2021
Currentness_Reference: 
publication date
Keywords:
Theme:
Theme_Keyword_Thesaurus:ISO 19115 Topic Categories
Theme_Keyword:farming
Access_Constraints:None.
Use_Constraints: 
The University excludes any and all implied warranties, including warranties or merchantability and fitness for a particular purpose.
The University makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided "as is" and the USER assumes the entire risk as to its quality and performance.
The University will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation.
The USER is granted permission to translate and add value to the FILES for the use of the FILES on its computer hardware; provided, however, that the USER annually notify the University of any customizing or value-adding work done.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:Penn State
Contact_Person:Amanda B. Burton
Contact_Address:
Address_Type:mailing address
City:University Park
State_or_Province:Pennsylvania
Postal_Code:16802
Country:USA
Contact_Electronic_Mail_Address:abb25@psu.edu
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 8.3.0.800
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Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Organization:Penn State Data Commons
Contact_Address:
Address_Type:mailing and physical address
Address: 
115 Land and Water Building
City:University Park
State_or_Province:Pennsylvania
Postal_Code:16802
Country:United States
Contact_Voice_Telephone:(814) 865 - 8792
Contact_Electronic_Mail_Address:datacommons@psu.edu
Distribution_Liability: 
The USER shall indemnify, save harmless, and, if requested, defend those parties involved with the development and distribution of this data, their officers, agents, and employees from and against any suits, claims, or actions for injury, death, or property damage arising out of the use of or any defect in the FILES or any accompanying documentation. Those parties involved with the development and distribution excluded any and all implied warranties, including warranties or merchantability and fitness for a particular purpose and makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided "as is" and the USER assumes the entire risk as to its quality and performance. Those parties involved with the development and distribution of this data will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation.
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Metadata_Reference_Information:
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:Penn State Data Commons
Contact_Position:Metadata Coordinator
Contact_Address:
Address_Type:mailing address
Address: 
115 Land and Water Building
City:University Park
State_or_Province:Pennsylvania
Postal_Code:16802
Country:United States
Contact_Voice_Telephone:814-865-8792
Contact_Electronic_Mail_Address:datacommons@psu.edu
Metadata_Standard_Name:FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version:FGDC-STD-001-1998
Metadata_Time_Convention:local time
Metadata_Extensions:
Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name:ESRI Metadata Profile
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