| Micro environmental regulation effect of red jujube trees' canopy in arid oasis region |
|
View Fulltext View/Add Comment Download reader |
| |
| DOI：10.7606/j.issn.1000-7601.2016.01.03 |
| Key Words: red jujube trees micro environmental regulation atomization with micro spay atmosphere temperature relative humidity |
| Author Name | Affiliation | | HONG Ming | College of Hydraulic and Civil Engineering of Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China；College of water Conservancy and Hydropower Engineering of HoHai University, Nanjing, Jiangsu 210098, China | | ZHAO Jing-hua | College of Hydraulic and Civil Engineering of Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China | | MA Ying-jie | College of Hydraulic and Civil Engineering of Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China | | MU Ha-xi | College of Hydraulic and Civil Engineering of Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China | | YOU Lei | College of Hydraulic and Civil Engineering of Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China | | WANG Zhi-guo | Research Institute of Soil ＆ Fertilizer and Agricultural Water Conservation, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang 830091, China |
|
| Hits: 1284 |
| Download times: 844 |
| Abstract: |
| Flowering stage of red jujube trees always encounters with hot dry weather in arid oasis region in XinJiang, which leads to lower setting rate and follows decreasing of red jujube yield easily. Increasing irrigation and artificial atomization are existed microenvironment regulation technology, which resulted some problems such as lower water use efficiency (WUE), serious agricultural nonpoint source pollution, high labor intensity and lacking of scientific foundation. In order to supply theoretical foundation to red jujube production in this area. After integrated atomization with micro spay technology (AWMS) with micro-irrigation, a line of micro sprinkler at 50 cm above the ground was installed and five treatments were created. The treatments were: T1, T2, T3 in which atomized for 30 min, 60 min and 90 min, respectively, T4 in which drip water volume equal to T2, control (CK) that was normal drip irrigation. Field experiment was carried out to study the effect of micro environmental regulation of red jujube trees canopy in arid oasis region. It turned out that there were two times a day—high atmosphere temperature(AT) with low relative humidity(RH) and low AT with high RH in central canopy of red jujube trees during the flowering stage when encounter with hot dry weather, in totally come up to about 14 hours, which showed great potential of micro environmental regulation of red jujube trees; canopy. AT of T1～T4 were 11.0%, 10.5%, 12.5%, 14.0% and 2.3%, 0.4%, 2.6%, 3.8% lower than those of surrounding and control, RH of T1～T4 were 23.7%, 20.0%, 21.2%, 17.2% and 5.3%, 2.2%, 3.2%, -0.1%, higher than those of surrounding and control, fruit yield were 9.4%, 6.8%, 6.7%, 10.2% higher than that control, which showed that AWMS have certain effect on improving AT and RH of central canopy and increasing fruit yield. There is an obvious negative linear relationship between AT and RH of central red jujube trees’ canopy. AWMS's effect on fruit setting rate and fruit qualities were not the same, the best treatments was T1, as far as fruit yield quality were concerned. It's recommended that AWMS should be carried out in two times a day, 12 Am in the morning and 4Pm in the afternoon. |
|
|
|