| Effects of Caragana intermedia powder and plastic film mulching measures on growth, photosynthetic characteristics and water use efficiency of maize |
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| DOI：10.7606/j.issn.1000-7601.2017.02.05 |
| Key Words: maize mulching measure growth characteristics photosynthetic characteristics water use efficiency |
| Author Name | Affiliation | | CHEN Lin | Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in Northwest China of Ministry of Education, Ningxia University, Yinchuan, Ningxia 750021, China
Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration in Northwest China, Ningxia University, Yinchuan, Ningxia 750021, China
Union Research Center for Ecology and Exploitation of Biological Resources in
Western China, Ningxia University, Yinchuan, Ningxia 750021, China | | YANG Xin-guo | Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in Northwest China of Ministry of Education, Ningxia University, Yinchuan, Ningxia 750021, China
Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration in Northwest China, Ningxia University, Yinchuan, Ningxia 750021, China
Union Research Center for Ecology and Exploitation of Biological Resources in
Western China, Ningxia University, Yinchuan, Ningxia 750021, China | | SONG Nai-ping | Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in Northwest China of Ministry of Education, Ningxia University, Yinchuan, Ningxia 750021, China
Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration in Northwest China, Ningxia University, Yinchuan, Ningxia 750021, China
Union Research Center for Ecology and Exploitation of Biological Resources in
Western China, Ningxia University, Yinchuan, Ningxia 750021, China | | LI Xue-bin | Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in Northwest China of Ministry of Education, Ningxia University, Yinchuan, Ningxia 750021, China
Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration in Northwest China, Ningxia University, Yinchuan, Ningxia 750021, China
Union Research Center for Ecology and Exploitation of Biological Resources in
Western China, Ningxia University, Yinchuan, Ningxia 750021, China | | ZHAI De-ping | College of Ecological and Environmental Science, East China Normal University, Shanghai 200241, China |
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| Abstract: |
| Using the maize cultivar Gannong 118 as material, a field experiment was conducted in Yanchi County, Ningxia Hui Autonomous Region in 2013 and 2014, with the purpose to investigate the effects of different treatments, including single film mulching and flat planting (SFP), double film mulching and flat planting (DFP), Caragana intermedia powder ditch mulching and flat planting (CPDP), and uncovered and flat planting (CK), on the growth, photosynthetic characteristics and water use efficiency (WUE) of dryland maize. The results showed that, when the rainfall was abundant, there was no significant difference in plant height, stem diameter and leaf area at late growth stage of maize among different treatments; however, when the rainfall was deficient, all the growth parameters of maize under SFP and DFP were significantly better than those under CK and CPDP (P＜0.05), and there was no significant difference between CK and CPDP. In the middle and late period of maize, the photosynthetic rate and transpiration rate of SFP and DFP were significantly higher than those of CPDP and CK (P<0.05). The WUE (including both leaf WUE and yield WUE) of CPDP was generally lower than that of SFP and DFP. Therefore, CPDP is not suggested to be applied in the study area. |
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