Integrated response of intercropped maize and potatoes to heterogeneous nutrients and crop neighbours

2.50
Hdl Handle:
http://hdl.handle.net/2436/299639
Title:
Integrated response of intercropped maize and potatoes to heterogeneous nutrients and crop neighbours
Authors:
Wu, Bozhi; Fullen, Michael A.; Li, Jianbin; An, Tongxin; Fan, Zhiwei; Zhou, Feng; Zi, Suhui; Yang, Youqiong; Xue, Guofeng; Liu, Zhong; Wu, Kaixian
Abstract:
Background and Aims In communities, plants often simultaneously interact with intra- and inter-specific neighbours and heterogeneous nutrients. How plants respond under these conditions and then affect the structure and function of communities remain important questions. Methods Maize (Zea mays L.) was intercropped with potatoes (Solanum tuberosum L.). In the field experiment, we applied fertilizer both homogeneously and heterogeneously under monocropping and intercropping conditions. The heterogeneous nutrient treatment in intercropping was designed with different fertilizer placements, at intraspecific and interspecific rows, respectively. In the pot experiment, crops were grown under both homogeneous and heterogeneous nitrogen conditions with single plant, intraspecific and interspecific competition. Shoot and root biomass and yield were measured to analyse crop performance. Results In the field experiment, the heterogeneous nitrogen, compared with the homogenous one, enhanced the performance of the intercropped crop. Importantly, this effect of heterogeneous nitrogen was greater when fertilizer was applied at interspecific rows, rather than at intraspecific rows. Moreover, in pot experiments, the root foraging precision of the two crops was increased by interspecific neighbours, but only that of potatoes was increased by intraspecific neighbours. Conclusions The integrated responses of plants to heterogeneous neighbours and nutrients depend on the position of nutrient-rich patches, which deepen our understanding of the function of plant diversity, and show that fertilizer placement within multi-cropping systems merits more attention. Moreover, the enhanced utilization of heterogeneous nitrogen could drive overyielding in multi-cropping systems.
Citation:
Integrated response of intercropped maize and potatoes to heterogeneous nutrients and crop neighbours 2013 Plant and Soil
Publisher:
Springer Netherlands
Journal:
Plant and Soil
Issue Date:
Aug-2013
URI:
http://hdl.handle.net/2436/299639
DOI:
10.1007/s11104-013-1865-z
Additional Links:
http://link.springer.com/10.1007/s11104-013-1865-z
Type:
Article
Language:
en
ISSN:
0032-079X; 1573-5036
Appears in Collections:
Plant and Environmental Research Group

Full metadata record

DC FieldValue Language
dc.contributor.authorWu, Bozhien_GB
dc.contributor.authorFullen, Michael A.en_GB
dc.contributor.authorLi, Jianbinen_GB
dc.contributor.authorAn, Tongxinen_GB
dc.contributor.authorFan, Zhiweien_GB
dc.contributor.authorZhou, Fengen_GB
dc.contributor.authorZi, Suhuien_GB
dc.contributor.authorYang, Youqiongen_GB
dc.contributor.authorXue, Guofengen_GB
dc.contributor.authorLiu, Zhongen_GB
dc.contributor.authorWu, Kaixianen_GB
dc.date.accessioned2013-08-23T11:16:39Z-
dc.date.available2013-08-23T11:16:39Z-
dc.date.issued2013-08-
dc.identifier.citationIntegrated response of intercropped maize and potatoes to heterogeneous nutrients and crop neighbours 2013 Plant and Soilen_GB
dc.identifier.issn0032-079X-
dc.identifier.issn1573-5036-
dc.identifier.doi10.1007/s11104-013-1865-z-
dc.identifier.urihttp://hdl.handle.net/2436/299639-
dc.description.abstractBackground and Aims In communities, plants often simultaneously interact with intra- and inter-specific neighbours and heterogeneous nutrients. How plants respond under these conditions and then affect the structure and function of communities remain important questions. Methods Maize (Zea mays L.) was intercropped with potatoes (Solanum tuberosum L.). In the field experiment, we applied fertilizer both homogeneously and heterogeneously under monocropping and intercropping conditions. The heterogeneous nutrient treatment in intercropping was designed with different fertilizer placements, at intraspecific and interspecific rows, respectively. In the pot experiment, crops were grown under both homogeneous and heterogeneous nitrogen conditions with single plant, intraspecific and interspecific competition. Shoot and root biomass and yield were measured to analyse crop performance. Results In the field experiment, the heterogeneous nitrogen, compared with the homogenous one, enhanced the performance of the intercropped crop. Importantly, this effect of heterogeneous nitrogen was greater when fertilizer was applied at interspecific rows, rather than at intraspecific rows. Moreover, in pot experiments, the root foraging precision of the two crops was increased by interspecific neighbours, but only that of potatoes was increased by intraspecific neighbours. Conclusions The integrated responses of plants to heterogeneous neighbours and nutrients depend on the position of nutrient-rich patches, which deepen our understanding of the function of plant diversity, and show that fertilizer placement within multi-cropping systems merits more attention. Moreover, the enhanced utilization of heterogeneous nitrogen could drive overyielding in multi-cropping systems.en_GB
dc.language.isoenen
dc.publisherSpringer Netherlandsen_GB
dc.relation.urlhttp://link.springer.com/10.1007/s11104-013-1865-zen_GB
dc.rightsArchived with thanks to Plant and Soilen_GB
dc.subjectNutrient heterogeneityen_GB
dc.subjectProductivityen_GB
dc.subjectFertilizer Placementen_GB
dc.subjectNon-resource interactionen_GB
dc.subjectMaize and potatoes intercroppingen_GB
dc.titleIntegrated response of intercropped maize and potatoes to heterogeneous nutrients and crop neighboursen
dc.typeArticleen
dc.identifier.journalPlant and Soilen_GB
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