摘要
【目的】筛选比较适合拉萨高海拔地区水培生菜生长发育的营养液浓度。【方法】采用浮板式水培的方法,以美国大速生菜为材料,在Hoagland营养液的基础上,营养液处理浓度(EC值)分别为0.4(地下水)、0.8、1.2、1.6、2.0、2.4 ms/cm,基质和园土作为对照,研究不同营养液浓度对生长及品质的影响。【结果】不同营养液浓度对生菜的株高、叶片数、干鲜重、维C和叶绿素含量均有显著影响。【结论】综合考虑,EC值为2.0 ms/cm的营养液浓度最适宜生菜生长。
In order to select better suitable concentration of nutrient solution for greenhouse hydroponic lettuce,the floating plate hydroponic method was used to study the effect of concentration of nutrient solution on lettuce growth and quality,and the United States big speed lettuce was taken as test material.The 0.4(ground water),0.8,1.2,1.6,2.0,2.4 ms/cm concentrations(EC value)based on the Hoagland nutrient solution were prepared,substrate and garden soil were control,and then the effect on the growth indexes of lettuce,and contents of vitamin C and chlorophyll were studied.The results showed that the EC value of 2.0 ms/cm nutrient solution concentration was more suitable for the hydroponic lettuce growth.
作者
张瑜
刘玉红
扎西顿珠
杨亚辉
代安国
ZHANG Yu;LIU Yu-hong;Zhaxidunzhu;YANG Ya-hui;DAI An-guo(Institute of Vegetables,Tibet Academy of Agricultural and Animal Sciences,Tibet Lhasa 850000,China)
出处
《西藏农业科技》
2020年第1期54-56,共3页
Tibet Journal of Agricultural Sciences
基金
农业基础性长期性科技工作(ZX02S350100)。
关键词
生菜
水培
营养液浓度
Lettuce
Hydroponic
Nutrient solution concentrations
