IRRIGATION OF ROSA HYBRIDA L. ‘KARDINAL’ BASED ON SOIL MOISTURE TENSION INCREASES PRODUCTIVITY AND FLOWER QUALITY
IRRIGATION OF ROSA HYBRIDA L. ‘KARDINAL’ BASED ON SOIL MOISTURE TENSION INCREASES PRODUCTIVITY AND FLOWER QUALITY
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基于土壤湿度张力的 ROSA HYBRIDA L. ‘KARDINAL’ 灌溉可提高生产力和花卉质量
DOI：
10.17660/actahortic.2001.547.25
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
S. Tjosvold
中科院分区：
文献类型：
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作者：
L. Oki;J. Lieth;S. Tjosvold
基于土壤水分张力（SMT）的盆栽植物灌溉控制系统能够减少用于生产商业上可接受的作物的水量。该系统适用于生长在地面床中的植物，用于切花生产。由于这种类型的系统减少了施用的水量，因此测试了对花质量产生不利影响的可能性。灌溉控制系统由张力计、高流量陶瓷尖端和压力传感器、模数信号转换器、计算机和定制软件组成。该系统持续监测土壤的水分状况，当土壤干燥到特定水平时开始灌溉，并在施用足够量时关闭水。将该系统安装在月季的商品温室中。“Kardinal”植物，在试验区的用水量比种植者施用的量少26%。生产力（茎收获@米）是66%以上的测试领域。从试验植物收获的花的质量不低于种植者灌溉对照的花。事实上，除了最初的收获，来自测试区域的花比来自种植者区域的花明显更长（高达8厘米）。在移除灌溉控制系统后71天的额外收获显示茎长没有差异。使用这种灌溉控制系统可以减少水和肥料的使用时，液体饲料计划是利用。生产力和质量的提高可大大提高商业生产者的利润。
An irrigation control system based on soil moisture tension (SMT) for potted plants was able to reduce the amount of water used to produce commercially acceptable crops. This system was adapted for use on plants growing in ground beds for cut flower production. Since this type of system reduces the amount of water applied, the possibility of a detrimental effect on flower quality was tested. The irrigation control system consisted of tensiometers, modified with high flow ceramic tips and pressure transducers, an analog-digital signal converter, a computer, and custom written software. The system continuously monitored the moisture condition of the soil, initiated irrigation when the soil dried to a specific level, and turned off the water when an adequate amount was applied. When the system was installed in a commercial greenhouse of Rosa hybrida L. ‘Kardinal’ plants, water use in the test area was 26% less than the amount applied by the grower. Productivity (stems harvested@m) was 66% greater in the test area. Flowers harvested from the test plants were not lower in quality than those from the grower irrigated controls. In fact, except for the initial harvest, the flowers from the test area were significantly longer (up to 8 cm) than those from the grower’s area. An additional harvest, 71 days after the irrigation control system was removed, showed no differences in stem length. The use of this irrigation control system can reduce both water and fertilizer usage when a liquid feed program is utilized. Increases in productivity and quality can result in significant increases in profitability for commercial producers.