Nutrient-flow wick culture system for potted plant production: System characteristics and plant growth
Nutrient-flow wick culture system for potted plant production: System characteristics and plant growth
复制标题
用于盆栽植物生产的营养流灯芯培养系统：系统特性和植物生长
DOI：
10.1016/j.scienta.2005.11.001
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发表时间：
2006
影响因子：
4.3
通讯作者：
G. Giacomelli
中科院分区：
文献类型：
--
作者：
J. Son;M. Oh;Y. J. Lu;Keesung Kim;G. Giacomelli
为了补充现有的盆栽深灌系统，开发了营养流芯培养(NFW)系统，并将其与其他深灌系统进行了比较，如落潮流水培养(EBB)系统和营养停滞芯培养(NSW)系统。Kalanchoe(Kalanchoe blossFeldiana cv.)在每个地下灌溉系统中，在一个6厘米的盆栽中栽培10周。观察了不同培养方式下的基质吸水规律、基质含水率、失水量、藻类生长、积盐和植物生长情况。NFW和EBB系统下的基质含水率分别在30%~40%和50%~60%(体积比)之间波动，而NSW系统下的含水率逐渐增加到40%以上，没有波动。与其他系统相比，NFW系统的水分损失为50-70%，这是由于槽表面和介质表面的蒸发减少所致。NSW系统中出现藻类是因为营养液总是滞留在槽中，而在NFW系统中没有观察到藻类。营养液中的溶解氧在灌水期内最高，而营养液中的盐度在NFW系统中最低。就系统特点而言，NFW系统简单、节水、高效。此外，在灌水频率为每天5次的情况下，NFW系统中的万寿菊的生长情况与NSW和Ebb系统中的相似。
To compliment the current subirrigation systems used for production of potted plants, a nutrient-flow wick culture (NFW) system was developed and compared with other subirrigation systems, such as an ebb and flow culture (EBB) system and a nutrient-stagnant wick culture (NSW) system in relation to their system characteristics and plant growth. Kalanchoe (Kalanchoe blossfeldiana cv. New Alter) was cultivated in a 6cm pot for 10 weeks in each subirrigation system. The water-absorption pattern of the medium, water content of the medium, water loss, algal growth, salt-buildup and plant growth under various culture systems were observed. The water contents of medium under the NFW and EBB systems showed fluctuations from 30 to 40% and from 50 to 60% (by volume), respectively, whereas the water content under the NSW system gradually increased to over 40% without fluctuation. Relative to other systems, the water loss in the NFW system was 50–70% due to the reduction in the evaporation from the surfaces of the trough and medium. Algae appeared in the NSW system because the nutrient solution was always stagnant in the trough, while it was not observed under the NFW system. The dissolved oxygen in the nutrient solution was the highest during the irrigation period and the salinity in the medium was the lowest in the NFW system. With regard to system characteristics, the NFW system was simple, water-saving and efficient. In addition, the growth of kalanchoes in the NFW system was similar to those in the NSW and EBB systems at an irrigation frequency of five times a day.