Project Database

Hydroponic Farming of Extra Long Staple (ELS) Cotton Fibers - A Preliminary Study

The term “extra-long staple” (ELS) cotton typically denotes a cotton fiber of extraordinary fiber length. The recognized industry standard for minimum fiber length of an ELS fiber is 34.9 mm. The longer the cotton fiber, the stronger, softer, and more durable the resulting fabric. ELS and LS (long staple) cottons represent only about 3% of the entire world’s cotton production. Environmental conditions for ELS cotton are specific: they can be grown only in the limited areas that suit the plant’s need for hot days and cool nights. Other than climatic conditions, control of irrigation, nutrients and pest management are all challenging factors for ELS cotton plantation in soil. In this project, we aim to study the desired hydroponic farming conditions for at least one ELS cotton variety in a hydroponic farming setup. The objectives of this project include: 1. Construct a small-scale hydroponic farming setup for preliminary study of cotton cultivation by hydroponics 2. Study the desired hydroponic farming conditions for at least one ELS cotton variety in the setup, where we can create conditions favourable for the cotton growth process 3. Obtain equivalent or higher yield per unit area or shorter growth cycle time than conventional ELS cotton farming in soil 4. Obtain equivalent or better ELS cotton fiber qualities, regarding the industrial standards of ELS cotton fibers grown in soil as benchmarks 5. Conduct production cost and carbon emission evaluation of the ELS cotton

Project No. (ITC) ITP/039/21TP
Project Type Seed
Project Co-ordinator Dr. CHAN Alex
Research Institute The Hong Kong Research Institute of Textiles & Apparel Limited
ITF Amount HK$ 2,798,025
Start Date DD/MM/YY 2021-09-01
Completion Date DD/MM/YY 2023-02-28
Gap International Sourcing Ltd.
Esquel Enterprises Limited