| Effects of different irrigation thresholds on the growth and water use efficiency of jujube trees |
|
View Fulltext View/Add Comment Download reader |
| |
| DOI：10.7606/j.issn.1000-7601.2020.02.08 |
| Key Words: irrigation threshold gray jujube bearing branch growth yield water use efficiency |
| Author Name | Affiliation | | MA Junyong | Xinjiang Academy of Agricultural and Reclamation Science, Shihezi, Xinjiang 832000, China
Shihezi Experimental Station for Crop Water Use of Ministry of Agriculture, Shihezi, Xinjiang 832000, China | | ZHENG Guoyu | Xinjiang Academy of Agricultural and Reclamation Science, Shihezi, Xinjiang 832000, China
Shihezi Experimental Station for Crop Water Use of Ministry of Agriculture, Shihezi, Xinjiang 832000, China | | ZHOU Jianwei | Xinjiang Academy of Agricultural and Reclamation Science, Shihezi, Xinjiang 832000, China
Shihezi Experimental Station for Crop Water Use of Ministry of Agriculture, Shihezi, Xinjiang 832000, China | | Zheng Qiangqing | Xinjiang Academy of Agricultural and Reclamation Science, Shihezi, Xinjiang 832000, China
Shihezi Experimental Station for Crop Water Use of Ministry of Agriculture, Shihezi, Xinjiang 832000, China |
|
| Hits: 1024 |
| Download times: 900 |
| Abstract: |
| In order to explore the effect of different irrigation threshold on the growth, yield, and water use efficiency of gray jujube in typical oasis of Xinjiang, a field experiment was carried out in the 38 Regiment of the Second Division of the Xinjiang Production and Construction Corps. The 7a gray jujube was used as test materials, and 4 drip irrigation thresholds (T1, T2, T3, and T4 equivalent to 40%, 55%, 70%, and 85% of the field capacity, respectively). The results indicated that the bearing branch length of jujube had significantly positive correlation with the irrigation threshold, and bearing branch length of jujube with T1 was 31.84% less than that with T4. The yield and fruit weight of jujube were influenced by the irrigation threshold. Compared with T4, the first class fruit yields of T2 and T3 were increased by 11.26% and 4.48%, and the jujube yield were increased by 35.66% and 21.76%. In addition, reducing the irrigation threshold was beneficial to improve the water use efficiency of jujube. The water use efficiency of T1, T2, and T3 was 10.10%~28.28% higher than that of T4. The results showed that the appropriate irrigation threshold was 55% of the field capacity, which could not only inhibit the excessive vegetative growth of jujube but also improve the water use efficiency and yield of jujube. |
|
|
|