Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 51369028 |
| 南疆枣树间接地下滴灌条件下根系调控及养分吸收利用机理 | |
| 孙三民 | |
| 主持机构 | 塔里木大学 |
| 开始日期 | 2014 |
| 结束日期 | 2017 |
| 资助经费 | 500000(CNY) |
| 项目类别 | 地区科学基金项目 |
| 资助机构 | CN-NSFC（国家自然科学基金） |
| 语种 | 中文 |
| 国家 | 中国 |
| 英文简介 | The development of forestry and fruit industry has been double meaning in the win-win between economic and ecological benefits in south Xinjiang, and it has already become the pillar industry of local economy. Drip irrigation technique has been widely adopted in jujube fruit trees in south Xinjiang, but conventional surface drip irrigation has presented deficiency with the increased scale of production, such as the crop's root system distribute relatively shallow, and nutrient accumulated in the upper soil layer, which decrease yield and quality of jujube. Root adjustment is a key, which can effect on yield and quality of jujube and it is affected by soil water and nutrients also. How to apply feasible techniques of water-saving irrigation to promot nutrient use efficiency ,yield and quality of jujube by adjustment of root growth which is worth studying. The dwarf and close jujube is taken as the subject of study in this project, adjustment of root growth, yield and quality of jujube and characteristics of nutrient of root region soil effected on different of emitter depth, irrigation quantity and fertilizer rate,which would be studied under indirect subsurface drip irrigation through using investigation on root distribution and plot experiment.The regulation mechanism of root growth and distribution effected on irrigation and fertilization should be elucidate, the mechanism of nutrient uptake by jujube roots should be clarified, the control index of irrigation and fertilization suiting for jujube in south Xinjiang should be proposed for high-efficient nutrient utilizing, high quality and high yield by evaluated regulation effect of technological parameters of indirect subsurface drip on irrigation root distribution, yield and quality of jujube and nutrient uptake and utilization. The result will provide the technical support for the indirect subsurface drip irrigation technology extension as well as efficient and sustainable development of characteristic fruit in south Xinjiang. |
| 中文关键词 | 间接地下滴灌 ; 根系调控 ; 养分吸收利用 ; 枣树 |
| 来源机构 | 塔里木大学 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/344282 |
| 推荐引用方式 GB/T 7714 | 孙三民.南疆枣树间接地下滴灌条件下根系调控及养分吸收利用机理.2014. |
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