| Analysis of photosynthetic characteristics and yield of cotton intercropping with Jujube in Xinjiang |
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| DOI：10.7606/j.issn.1000-7601.2019.01.12 |
| Key Words: jujube-cotton intercropping photosynthetic characteristics yield economic output value |
| Author Name | Affiliation | | YANG Tao | College of Agronomy, Shihezi University, Shihezi, Xinjiang 832000, China
Key Laboratory of Oasis Agro-Ecology of Xinjiang Production and Construction Corps, Shihezi, Xinjiang 832000, China | | DUAN Zhi-ping | College of Agronomy, Shihezi University, Shihezi, Xinjiang 832000, China
Key Laboratory of Oasis Agro-Ecology of Xinjiang Production and Construction Corps, Shihezi, Xinjiang 832000, China | | SHI Yan-song | College of Agronomy, Shihezi University, Shihezi, Xinjiang 832000, China
Key Laboratory of Oasis Agro-Ecology of Xinjiang Production and Construction Corps, Shihezi, Xinjiang 832000, China | | LIU Tian-yu | College of Agronomy, Shihezi University, Shihezi, Xinjiang 832000, China
Key Laboratory of Oasis Agro-Ecology of Xinjiang Production and Construction Corps, Shihezi, Xinjiang 832000, China | | LUAN Peng-fei | College of Agronomy, Shihezi University, Shihezi, Xinjiang 832000, China
Key Laboratory of Oasis Agro-Ecology of Xinjiang Production and Construction Corps, Shihezi, Xinjiang 832000, China | | ZHANG Yong-qiang | College of Agronomy, Shihezi University, Shihezi, Xinjiang 832000, China
Key Laboratory of Oasis Agro-Ecology of Xinjiang Production and Construction Corps, Shihezi, Xinjiang 832000, China | | JIAO Chao | College of Agronomy, Shihezi University, Shihezi, Xinjiang 832000, China
Key Laboratory of Oasis Agro-Ecology of Xinjiang Production and Construction Corps, Shihezi, Xinjiang 832000, China | | ZHU Yun | College of pharmacy, Shihezi University, Shihezi, Xinjiang 832000, China | | LI Lu-hua | College of Agronomy, Shihezi University, Shihezi, Xinjiang 832000, China
Key Laboratory of Oasis Agro-Ecology of Xinjiang Production and Construction Corps, Shihezi, Xinjiang 832000, China | | ZHANG Wei | College of Agronomy, Shihezi University, Shihezi, Xinjiang 832000, China
Key Laboratory of Oasis Agro-Ecology of Xinjiang Production and Construction Corps, Shihezi, Xinjiang 832000, China |
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| Abstract: |
| In order to understand the photosynthetic characteristics and yield of cotton in intercropping system, the photosynthetic characteristics of cotton in sole-cropping and intercropping cotton-jujube were measured by using Li-6400 photosynthesis system at the seedling stage, squaring stage, flower and boll stage, and boll opening stage of cotton. Analysis of yield and economic output value of cotton in sole-cropping and intercropping cotton-jujube. The results showed that the most significant differences of photosynthetic characteristics between sole-cropping and intercropping were in flower and boll stages. The net photosynthetic rate (Pn), transpiration rate (Tr), and stomatal conductance (Gs) of intercropped cotton were 31.33%, 15.13%, and 22.39% lower than that of sole-cropping, respectively. The intercellular CO2 concentration (Ci) of intercropped cotton was 8.90% higher than that of the sole-cropping. The yield of intercropped cotton on the harvest plants, number of bolls hectare, and lint yield were 28.26%, 32.7%, and 41.61% lower than that of the sole-cropping, respectively. In the land-use efficiency and the economic output value of cotton, intercropping had obvious advantages over sole-cropping. It showed that the jujube-cotton intercropping increased the land-use efficiency by 35% and increased the economic output value by 41.27% compared with that of the same area of sole cotton, and it increased the economic output value by 30.63% compared with that of the same area of sole jujube. In the jujube-cotton system the adverse effects of intercropping on photosynthesis increased with the growth of jujube and cotton, it reduced cotton yield but it greatly increased the land utilization ratio and economic return. |
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