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| 土壤水分与氮营养对果树幼苗生长和水分传导的影响 | |
| 引用本文： | 张志亮,张富仓,郑彩霞,倪福全. 土壤水分与氮营养对果树幼苗生长和水分传导的影响[J]. 农业工程学报, 2009, 25(6): 46-51. DOI: 10.3969/j.issn.1002-6819.2009.06.008 |
| 作者姓名： | 张志亮 张富仓 郑彩霞 倪福全 |
| 作者单位： | 1. 西北农林科技大学旱区农业水土工程教育部重点实验室,杨凌,712100;四川农业大学信息与工程技术学院,雅安,625014 2. 西北农林科技大学旱区农业水土工程教育部重点实验室,杨凌,712100 3. 四川农业大学信息与工程技术学院,雅安,625014 |
| 基金项目： | 国家自然科学基金项目（50579066；50879073） |
| 摘 要： | 为了揭示不同树种导水特性、水分传输规律及水氮影响机制，该文以一年生的桃树苗、梨树苗、苹果树苗为试验材料，采用美国Dynamax公司生产的高压流速仪（High Pressure Flow Meter简称HPFM）测定桶栽果树幼苗导水率，研究了不同水氮处理对果树幼苗生长和水分传导的影响。结果表明：不同水氮处理对果树苗的生长有显著的影响，水分对果树苗根系、冠层导水率的影响都达到了显著水平，随着土壤含水率的减小导水率依次降低，土壤干旱限制果树苗根系的生长发育和干物质的累积，从而降低了根系及冠层的导水率；氮素对果树苗的导水率也具有显著的影响，施氮肥可以促进果树苗根系和冠层导水率的增加；该试验条件下果树苗导水率与根粗、株高与根粗成线性相关关系。 |
| 关 键 词： | 土壤水分，氮肥，导水率，生长，果树幼苗 |
| 收稿时间： | 2007-11-29 |
| 修稿时间： | 2008-07-22 |
Effects of soil water and nitrogen nutrition on growth and hydraulic conductivity of fruit tree seedling |
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| Zhang Zhiliang,Zhang Fucang,Zheng Caixia and Ni Fuquan. Effects of soil water and nitrogen nutrition on growth and hydraulic conductivity of fruit tree seedling[J]. Transactions of the Chinese Society of Agricultural Engineering, 2009, 25(6): 46-51. DOI: 10.3969/j.issn.1002-6819.2009.06.008 | |
| Authors: | Zhang Zhiliang Zhang Fucang Zheng Caixia Ni Fuquan |
| Affiliation: | 1.Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas of Ministry of Education;Northwest Agriculture and Forestyr University;Yangling 712100;China;2.College of Information and Technology;Sichuan Agricultural University;Ya'an 625014;China |
| Abstract: | In order to understand the mechanism of hydraulic conductivity,water transmission and the effect of water and nitrogen on varieties of fruit trees,the effects of different soil water and nitrogen treatments on growth and hydraulic conductivity of fruit tree seedlings were conducted by barrel experiments.Peach(Prunus persica(L.)Batsch),pear (Pyrus spp.)and apple(M.pumila Mill)seedlings were used as experimental materials.The values of hydraulic conductivity of fruit tree seedlings were measured with high pre... |
| Keywords: | soil moisture nitrogen fertilizer hydraulic conductivity growth fruit tree seedlings |
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