| 不同水氮处理对果树幼苗生长和耗水特性的影响 |
| |
| 引用本文： | 张志亮,张富仓,郑彩霞,倪福全. 不同水氮处理对果树幼苗生长和耗水特性的影响[J]. 干旱地区农业研究, 2009, 27(6): 50-57 |
| |
| 作者姓名： | 张志亮 张富仓 郑彩霞 倪福全 |
| |
| 作者单位： | 张志亮,郑彩霞(四川农业大学信息与工程技术学院,四川,雅安,625014;西北农林科技大学旱区农业水土工程教育部重点实验室,陕西,杨凌,712100);张富仓(西北农林科技大学旱区农业水土工程教育部重点实验室,陕西,杨凌,712100);倪福全(四川农业大学信息与工程技术学院,四川,雅安,625014) |
| |
| 基金项目： | 国家自然科学基金项目 |
| |
| 摘 要： | 通过盆栽试验,研究了低水(W_1)、中水(W_2)、高水(W_3)三种土壤水分和不施氮(N1)、低氮(N_2)和高氮(N_3)三种施氮量对苹果、梨、桃树幼苗的生长、蒸腾耗水量和水分利用效率的影响.结果表明:三种果树苗耗水量有着明显的差异,在W_2N_1条件下单株耗水量桃树苗最大,在晴天,苹果、梨、桃树日蒸腾量占日总耗水量依次为:22.4%,18%,35.7%,较阴天依次提高了0.5%,8%,22.6%,三种果树苗在晴天夜间的蒸散量依次为:苹果3.26±0.37 g,梨树4.0±1.41 g,桃树4.63±1.8 g左右;在相同的处理下比较三种果树苗蒸腾速率,桃树苗的蒸腾速率相对较大.增施氮肥可以增加果树苗的累积耗水量,提高果树苗水分利用效率.株高、茎粗等生长量的累积幅度上桃树苗最为明显;水分、氮肥对果树干物质的量的影响也都达到了显著水平,干物质量随着土壤含水量、施氮量的增加而增加.在土壤含水量为田间持水量的60%～70%时,既可以保证果树苗正常的生理生长又可以提高水分利用效率.
|
| 关 键 词： | 水分 氮肥 果树幼苗 生长 耗水量 |
Effects of different water and nitrogen treatment on growth and water consumption characteristics of fruit seedlings |
| |
| ZHANG Zhiliang,ZHANG Fucang,ZHENG Caixi,NI Fuquan. Effects of different water and nitrogen treatment on growth and water consumption characteristics of fruit seedlings[J]. Agricultural Research in the Arid Areas, 2009, 27(6): 50-57 |
| |
| Authors: | ZHANG Zhiliang ZHANG Fucang ZHENG Caixi NI Fuquan |
| |
| Affiliation: | ZHANG Zhi-liang1,2,ZHANG Fu-cang2,ZHENG Cai-xia1,NI Fu-quan1(1.College of Information and Technology,Sichuan Agricultural University,Ya'an,Sichuan 625014,2.Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas of Ministry of Education,Northwest A & F University,Yangling,Shaanxi 712100,China) |
| |
| Abstract: | With pot experiment,the growth,transpiration rate,water consumption characteristics and water use efficiency(WUE) of three fruit seedlings were investigated under different water and nitrogen fertilizer treatments.The results showed that water consumption are obviously different among three fruit seedlings;the water consumption of peach seedling is the maximum in three fruit seedling under W2N1 combination condition.The daily transpiration of peach,apple and pear account for 22.4%,18% and 35.7% of daily con... |
| |
| Keywords: | water nitrogen fruit seedling growth water consumption |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《干旱地区农业研究》浏览原始摘要信息 |
|
点击此处可从《干旱地区农业研究》下载全文 |
|
