Subirrigation Reduces Water Use, Nitrogen Loss, and Moss Growth in a Container Nursery
Subirrigation Reduces Water Use, Nitrogen Loss, and Moss Growth in a Container Nursery
复制标题
地下灌溉减少了容器苗圃的用水量、氮素损失和苔藓生长
DOI：
10.2979/npj.2006.7.3.253
复制
发表时间：
2006
期刊：
影响因子：
--
通讯作者：
Baron Horiuchi
中科院分区：
文献类型：
--
作者：
R. K. Dumroese;J. R. Pinto;D. Jacobs;A. S. Davis;Baron Horiuchi
用大约一半的水，地下灌溉Metrosideros polymorpha Gaud。（桃金娘科）在温室中生长9个月，与现有的固定架空灌溉系统灌溉的相似;苔藓生长在3个月后的固定架空系统中约3倍。苔藓生长的影响率的种植前控释肥料添加（更多的肥料，苔藓）和苔藓成熟，量化的孢子囊的存在或不存在，与地下灌溉减慢。在固定灌溉系统下，每平方米（0.02盎司/平方英尺）温室工作台约有5克氮（N）淋失，而地下灌溉则没有损失。除了Metrosideros macropus，美国农业部林务局和普渡大学正在评估其他物种的苗圃生产地下灌溉。迄今为止，结果表明，地下灌溉可能是一种有用的技术，用于种植具有大型树冠的原生植物，其中传统的灌溉系统不太有效，或者水的使用或其他环境问题是至关重要的。
With about half the amount of water, subirrigated Metrosideros polymorpha Gaud. (Myrtaceae) grown 9 mo in a greenhouse were similar to those irrigated with an existing fixed overhead irrigation system; moss growth was about 3X greater in the fixed overhead system after 3 mo. Moss growth was affected by the rate of preplant controlled release fertilizer added (more fertilizer, less moss) and moss maturity, quantified as presence or absence of sporangia, was slowed with subirrigation. About 5 g nitrogen (N) leached per m2 (0.02 oz/ft2 ) of greenhouse bench under the fixed irrigation system, whereas none was lost from subirrigation. Besides Metrosideros macropus, the USDA Forest Service and Purdue University are evaluating subirrigation for nursery production of other species. To date, the results indicate subirrigation may be a useful technique for growing native plants with large canopies where conventional irrigation systems are less effective, or where water use or other environmental concerns are paramount.