不同基质对闭鞘姜生长发育和光合作用的影响.pdf

热带作物学报 2021, 42(11): 32063211
Chinese Journal of Tropical Crops
Effects of Different Substrates on the 炭；椰糠；光合特性
中图分类号： 文献标识码：A

1 Introduction growth in soilless cultivation. In addition to sup-
Costus speciosus is a rhizomatous perennial porting and fixing, substrate is important for trans-
herb with pinkish white flowers on reddish bracts. It ferring adequate oxygen, water, and nutrients from
has increased popularity in recent years due to its the nutrient solution to plant roots. Peat has been
medicinal and ornamental properties. Its traditional widely used in soilless cultivation over the last
potting substrate is soil, which is heavy and ine- century due to its excellent physical and chemical
[1-3]
fficient for transport. properties, especially at the seedling stage . Ho-
Substrate is a key factor that affects plant wever, as a non-renewable resource and increasing

收稿日期 2020-12-28；修回日期 2021-03-10
基金项目 广东省科技计划项目（No. 2015A020209082）；广东省农业科学院“新兴学科团队创意农业研究团队”项目。
作者简介 刘晓荣（1979—），女，副研究员,研究方向：观赏植物生理生态，E-mail：******@。第 11 期 刘晓荣等: 不同基质对闭鞘姜生长发育和光合作用的影响 3207
price, peat has