Synchronously higher planting density can increase yield via optimizing interspecific interaction of intercropped wheat and maize

Increasing planting density is the main measure for high yield in intercropping. It is of great significance for the theory and technology of enhancing intercropping system to investigate the effects of intercrop's density changes on the interspecific interaction and yield. In 2018 and 2019, a...

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Bibliographic Details
Published inZuo wu xue bao Vol. 47; no. 12; p. 2481
Main Authors Zhang, Jin-Dan, Fan, Hong, Du, Jin-Yong, Yin, Wen, Fan, Zhi-Long, Hu, Fa-Long, Chai, Qiang
Format Journal Article
LanguageChinese
Published Beijing Chinese Academy of Agricultural Sciences (CAAS) 01.01.2021
Subjects
Agricultural practices
Competitiveness
Continuous cropping
Corn
Crop yield
Cropping systems
Grain
Harvesting
Intercropping
Interspecific relationships
Irrigation
Irrigation systems
Oases
Planting
Planting density
Recovery
Wheat
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Summary:Increasing planting density is the main measure for high yield in intercropping. It is of great significance for the theory and technology of enhancing intercropping system to investigate the effects of intercrop's density changes on the interspecific interaction and yield. In 2018 and 2019, a field experiment was carried out in Hexi oasis irrigation area, with three cropping patterns of monocropping maize, monocropping wheat, wheat-maize intercropping, and three maize densities of 45,000 plants hm-2（traditional）, 60,000 plants hm-2（medium）, 75,000 plants hm-2（high）, and two wheat densities of 2.84 million grains hm-2（traditional） and 3.41 million grains hm-2（high）. The effect of synchronously higher planting densities of wheat and maize on inter-specific relationship and yield of intercropping system was studied. The results showed that the densities of intercropped wheat and maize were increased simultaneously, which strengthened the competitiveness of wheat relative to maize(Awm) during the co-growth perio
ISSN:0496-3490