| 控制性分根交替灌溉 |
| 添加时间：2019/9/19 13:54:10 浏览次数： |
| 控制性分根交替灌溉 Controlled alternate root-splitting irrigation 该技术原来提出时，一方面是使部分根系处于土壤干燥的区域(干燥区)中，作物受到水分胁迫，根部形成大量脱落酸，传送到叶片，气孔开度减少，降低蒸腾耗水量;另一方面，使部分根系处于灌水的区域(湿润区)中，作物从土壤中吸收水分，满足正常的生理活动的需要。干燥区和湿润区交替灌溉。交替胁迫后次生根大量增加，根系吸水吸肥能力增加，水分利用效率明显提高。 When the technology was originally proposed, on the one hand, some roots were located in the dry area of soil (dry area), crops were subjected to water stress, and a large amount of abscisic acid was formed in roots, which was transported to leaves, stomatal opening was reduced, and transpiration water consumption was reduced; on the other hand, some roots were located in the irrigated area (wet area), and crops were transpired from soil. It absorbs water to meet the needs of normal physiological activities. Dry and wet areas are irrigated alternately. After alternate stress, secondary roots increased greatly, water absorption and fertilizer absorption capacity of roots increased, and water use efficiency increased significantly. 该技术在实用中改为隔沟交替灌溉系统，交替灌溉系统等。 The technology is replaced by Alternating Furrow irrigation system and alternating irrigation system in practice. |
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