| 控制性分根交替灌溉对玉米养分吸收的影响 |
| |
| 引用本文： | 韩艳丽,康绍忠.控制性分根交替灌溉对玉米养分吸收的影响[J].灌溉排水学报,2001,20(2):5-7. |
| |
| 作者姓名： | 韩艳丽 康绍忠 |
| |
| 作者单位： | 西北农林科技大学 |
| |
| 基金项目： | 国家自然科学基金资助项目 (39870 478)，G19990 1170 8的部分内容 |
| |
| 摘 要： | 用 PVC管栽试验研究 1 / 2固定灌水、1 / 2交替灌水与均匀灌水对玉米养分吸收的影响。结果表明 :交替供水方式较均匀灌水方式单位耗水量氮利用效率提高 4 .54% ,磷利用效率提高 4 .54% ;节水 2 7.6% ,水分利用效率提高 5.3%。
|
| 关 键 词： | 交替灌溉 玉米 养分 |
| 文章编号： | 1000-646(2001)02-0005-03 |
| 修稿时间： | 2001年2月27日 |
Effects of Controlled Root-Divided Alternative Irrigation on Nutrient Uptake in Maize |
| |
| HAN Yan li,KANG Shao zhong.Effects of Controlled Root-Divided Alternative Irrigation on Nutrient Uptake in Maize[J].Journal of Irrigation and Drainage,2001,20(2):5-7. |
| |
| Authors: | HAN Yan li KANG Shao zhong |
| |
| Abstract: | Nutrient uptake were investigated in a experiment, with treatment of only watering fixed half part of root zone, and treatment of watering alternatively the two half parts of total root zone, and treatment of watering conventionally whole root zone in maize cultivated in PVC pots. Results showed that water consumption reduced 27.6%, water use efficiency increased 5.3%, both N use efficiency and P use efficiency rose 4.54% in treatment of watering alternatively the two half parts of total root zone, comparing to treatment of watering conventionally whole root zone. |
| |
| Keywords: | alternative irrigation nutrition maize |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
