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Effect of intercropping distance on crop yield in a Paulownia-wheat agroforestry system in the Huang-huai-Hai Plain, China
A case study in a Paulownia (Paulownia elongata S. Y. Hu) -wheat intercropping system was conducted, and the relationship between tree belt distance (D), intercropping age (A) and annual relative wheat yield (Y) was estimated. The regression equation can be expressed as Y= 90.3290-1.9982 A+ 1.1924 D...
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| Published in: | Forests, trees and livelihoods trees and livelihoods, 2003, Vol.13 (1), p.7-16 |
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| Main Authors: | , , , , , |
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| container_end_page | 16 |
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| container_title | Forests, trees and livelihoods |
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| creator | Wu, G Zhou, Z Barker, M Yang, X Kong, H Zhao, J |
| description | A case study in a Paulownia (Paulownia elongata S. Y. Hu) -wheat intercropping system was conducted, and the relationship between tree belt distance (D), intercropping age (A) and annual relative wheat yield (Y) was estimated. The regression equation can be expressed as Y= 90.3290-1.9982 A+ 1.1924 D-0.3349 A
2
+ 0.2910 AD-0.0032 AD
2
. Tree belt distance and intercropping tree age were the main factors influencing wheat yield. Optimized tree belt distance in each intercropping tree age within the rotation for maximum annual yield was expressed as Dm= 29.1496 + 2.6886 A. The optimized tree belt distance for different Paulownia rotation (T), which could cause the maximum accumulative average wheat yield, was shown as: Dm' = 0.600 + 11.042 T-0.787 T
2
+ 0.0273 T
3
Further work is needed to develop a system to optimize the combined tree and wheat yields to meet the farmers' requirements. |
| doi_str_mv | 10.1080/14728028.2003.9752441 |
| format | article |
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2
+ 0.2910 AD-0.0032 AD
2
. Tree belt distance and intercropping tree age were the main factors influencing wheat yield. Optimized tree belt distance in each intercropping tree age within the rotation for maximum annual yield was expressed as Dm= 29.1496 + 2.6886 A. The optimized tree belt distance for different Paulownia rotation (T), which could cause the maximum accumulative average wheat yield, was shown as: Dm' = 0.600 + 11.042 T-0.787 T
2
+ 0.0273 T
3
Further work is needed to develop a system to optimize the combined tree and wheat yields to meet the farmers' requirements.</description><identifier>ISSN: 1472-8028</identifier><identifier>EISSN: 2164-3075</identifier><identifier>DOI: 10.1080/14728028.2003.9752441</identifier><language>eng</language><publisher>Taylor & Francis Group</publisher><subject>agroforestry ; China ; crop production ; crown diameter ; diameter ; equations ; height ; intercropping ; intercropping system ; Paulownia ; Paulownia elongata ; rotation ; spatial distribution ; tree age ; tree crown ; tree height ; trees ; wheat ; wheat yield ; yields</subject><ispartof>Forests, trees and livelihoods, 2003, Vol.13 (1), p.7-16</ispartof><rights>Copyright Taylor & Francis Group, LLC 2003</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c195t-a878cd87c5ec970735c8a83a61e28d08e76e5cc0666bacc08bcb94d6d5d14c1a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,4021,27921,27922,27923</link.rule.ids></links><search><creatorcontrib>Wu, G</creatorcontrib><creatorcontrib>Zhou, Z</creatorcontrib><creatorcontrib>Barker, M</creatorcontrib><creatorcontrib>Yang, X</creatorcontrib><creatorcontrib>Kong, H</creatorcontrib><creatorcontrib>Zhao, J</creatorcontrib><title>Effect of intercropping distance on crop yield in a Paulownia-wheat agroforestry system in the Huang-huai-Hai Plain, China</title><title>Forests, trees and livelihoods</title><description>A case study in a Paulownia (Paulownia elongata S. Y. Hu) -wheat intercropping system was conducted, and the relationship between tree belt distance (D), intercropping age (A) and annual relative wheat yield (Y) was estimated. The regression equation can be expressed as Y= 90.3290-1.9982 A+ 1.1924 D-0.3349 A
2
+ 0.2910 AD-0.0032 AD
2
. Tree belt distance and intercropping tree age were the main factors influencing wheat yield. Optimized tree belt distance in each intercropping tree age within the rotation for maximum annual yield was expressed as Dm= 29.1496 + 2.6886 A. The optimized tree belt distance for different Paulownia rotation (T), which could cause the maximum accumulative average wheat yield, was shown as: Dm' = 0.600 + 11.042 T-0.787 T
2
+ 0.0273 T
3
Further work is needed to develop a system to optimize the combined tree and wheat yields to meet the farmers' requirements.</description><subject>agroforestry</subject><subject>China</subject><subject>crop production</subject><subject>crown diameter</subject><subject>diameter</subject><subject>equations</subject><subject>height</subject><subject>intercropping</subject><subject>intercropping system</subject><subject>Paulownia</subject><subject>Paulownia elongata</subject><subject>rotation</subject><subject>spatial distribution</subject><subject>tree age</subject><subject>tree crown</subject><subject>tree height</subject><subject>trees</subject><subject>wheat</subject><subject>wheat yield</subject><subject>yields</subject><issn>1472-8028</issn><issn>2164-3075</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><recordid>eNqFkN1KAzEQhYMoWKuPIOYB3DrZ3-ydUqoVCha012GazbaRbVKSlLI-vVlar706MHznwHyE3DOYMODwxPIq5ZDySQqQTeqqSPOcXZBRyso8yaAqLsloYJIBuiY33n8DlAA1jMjPrG2VDNS2VJugnHR2v9dmQxvtAxqpqDV0ONJeq66JEEW6xENnj0ZjctwqDBQ3zrbWKR9cT33vg9oNYNgqOj-g2STbA-pkjpouO9TmkU632uAtuWqx8-runGOyep19TefJ4uPtffqySCSri5Agr7hseCULJesKqqyQHHmGJVMpb4CrqlSFlFCW5Rpj8rVc13lTNkXDcskwG5PitBvf8N6pVuyd3qHrBQMxCBR_AsUgUJwFxt7zqadNfG6HR-u6RgTsO-taF91oL7L_Jh5OEy1aES3FxuozBZYBgzqNSPYLmLiCkQ</recordid><startdate>2003</startdate><enddate>2003</enddate><creator>Wu, G</creator><creator>Zhou, Z</creator><creator>Barker, M</creator><creator>Yang, X</creator><creator>Kong, H</creator><creator>Zhao, J</creator><general>Taylor & Francis Group</general><scope>FBQ</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>2003</creationdate><title>Effect of intercropping distance on crop yield in a Paulownia-wheat agroforestry system in the Huang-huai-Hai Plain, China</title><author>Wu, G ; Zhou, Z ; Barker, M ; Yang, X ; Kong, H ; Zhao, J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c195t-a878cd87c5ec970735c8a83a61e28d08e76e5cc0666bacc08bcb94d6d5d14c1a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>agroforestry</topic><topic>China</topic><topic>crop production</topic><topic>crown diameter</topic><topic>diameter</topic><topic>equations</topic><topic>height</topic><topic>intercropping</topic><topic>intercropping system</topic><topic>Paulownia</topic><topic>Paulownia elongata</topic><topic>rotation</topic><topic>spatial distribution</topic><topic>tree age</topic><topic>tree crown</topic><topic>tree height</topic><topic>trees</topic><topic>wheat</topic><topic>wheat yield</topic><topic>yields</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wu, G</creatorcontrib><creatorcontrib>Zhou, Z</creatorcontrib><creatorcontrib>Barker, M</creatorcontrib><creatorcontrib>Yang, X</creatorcontrib><creatorcontrib>Kong, H</creatorcontrib><creatorcontrib>Zhao, J</creatorcontrib><collection>AGRIS</collection><collection>CrossRef</collection><jtitle>Forests, trees and livelihoods</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wu, G</au><au>Zhou, Z</au><au>Barker, M</au><au>Yang, X</au><au>Kong, H</au><au>Zhao, J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of intercropping distance on crop yield in a Paulownia-wheat agroforestry system in the Huang-huai-Hai Plain, China</atitle><jtitle>Forests, trees and livelihoods</jtitle><date>2003</date><risdate>2003</risdate><volume>13</volume><issue>1</issue><spage>7</spage><epage>16</epage><pages>7-16</pages><issn>1472-8028</issn><eissn>2164-3075</eissn><abstract>A case study in a Paulownia (Paulownia elongata S. Y. Hu) -wheat intercropping system was conducted, and the relationship between tree belt distance (D), intercropping age (A) and annual relative wheat yield (Y) was estimated. The regression equation can be expressed as Y= 90.3290-1.9982 A+ 1.1924 D-0.3349 A
2
+ 0.2910 AD-0.0032 AD
2
. Tree belt distance and intercropping tree age were the main factors influencing wheat yield. Optimized tree belt distance in each intercropping tree age within the rotation for maximum annual yield was expressed as Dm= 29.1496 + 2.6886 A. The optimized tree belt distance for different Paulownia rotation (T), which could cause the maximum accumulative average wheat yield, was shown as: Dm' = 0.600 + 11.042 T-0.787 T
2
+ 0.0273 T
3
Further work is needed to develop a system to optimize the combined tree and wheat yields to meet the farmers' requirements.</abstract><pub>Taylor & Francis Group</pub><doi>10.1080/14728028.2003.9752441</doi><tpages>10</tpages></addata></record> |
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| source | Taylor and Francis Science and Technology Collection |
| subjects | agroforestry China crop production crown diameter diameter equations height intercropping intercropping system Paulownia Paulownia elongata rotation spatial distribution tree age tree crown tree height trees wheat wheat yield yields |
| title | Effect of intercropping distance on crop yield in a Paulownia-wheat agroforestry system in the Huang-huai-Hai Plain, China |
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